DRAFT STRUCTURAL EVALUATION - Knoxblogs.com

Degenkolb Engineers

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235 Montgomery Street San Francisco, California 94104-2908

K-25 HISTORICAL PRESERVATION ALTERNATIVES Oak Ridge, Tennessee DRAFT STRUCTURAL EVALUATION

December 2010 Degenkolb Job Number B0138006.00

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STRUCTURAL EVALUATION K-25 HISTORIC PRESERVATION ALTERNATIVES

EAST TENNESSEE TECHNOLOGY PARK OAK RIDGE, TENNESSEE

Degenkolb Engineers 235 MONTGOMERY STREET, SUITE 500, SAN FRANCISCO, CA 94104 TEL: (415) 392-6952 FAX: (415) 981-3157

The K-25 Gaseous Diffusion Plant at Oak Ridge, Tennessee, was constructed in 1943-1944. The

purpose of the plant was to produce enriched Uranium 235 during the Manhattan Project. The

building foot print covered 44 acres and was the largest building footprint in the world when

constructed. The K-25 facility continued to produce enriched Uranium into the 1960s. The

building has had limited maintenance for many years and is currently being decontaminated and

demolished under a contract with Bechtel-Jacobs. Figure 1 illustrates the general site location

and Figure 2 is a view of the K-25 building before demolition activities began.

INTRODUCTION

The issue of preserving some portions of the K-25 Building along with other Manhattan Project

facilities for historic preservation and educational reasons has been studied for most of the last

10 years. Studies in 2003 by Ehrenkrantz Eckstut & Kuhn Architects led to a 2005

Memorandum of Agreement (MOA) to retain the north end of the U-shaped K-25 Building along

with various components.

In 2006 a workman fell through a deteriorated portion of the Operating Floor and structural

studies identified numerous serious safety risks within the building due to deteriorated

conditions. Alternative historic preservation options were studied by the Department of Energy

and Patrick McMillan, Architect, and were presented at Consultation Meetings in May 2009 with

interested parties. Since that time Informal Learning Experiences of Washington, D.C., has

studied museum options for the K-25 Building and related Oak Ridge facilities. Degenkolb

Engineers of San Francisco, California, was engaged to perform this Structural Evaluation of

several historic preservation alternatives for K-25 with estimated costs.

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Degenkolb Engineers 235 MONTGOMERY STREET, SUITE 500, SAN FRANCISCO, CA 94104 TEL: (415) 392-6952 FAX: (415) 981-3157 2

BUILDING DESCRIPTION

The North Wing of K-25 is similar to the two long wings that are being demolished. There is a

Basement with concrete slab on grade which is at grade on the outer edges of the building.

Exterior basement walls have concrete block masonry infill. The first supported floor is the Cell

Floor of reinforced concrete which supports the Converters and associated equipment. The

Converters are on a raised slab 3 ½ feet above the base Cell Floor. Above the Cell Floor the

primary structure consists of structural steel columns with structural steel beams at the Pipe

Gallery Level, at the Operating Floor and at the Roof. The Operating Floor has lightly

reinforced precast concrete planks that rest on the steel beam and one of these failed and a

workman fell apparently due to corroded reinforcement. The roof is a poured gypsum slab

system with bulb tees spanning to the steel beams. Exterior walls above the Cell Floor are

corrugated asbestos panels attached to steel wind girts and steel studs with unreinforced masonry

infill for insulation. The structure contains numerous expansion joints in both the concrete and

steel framing levels.

PRESERVATION ALTERNATIVES IN THIS STUDY

Based on conversations with the Department of Energy, Oak Ridge Office, we were directed to

study four basic schemes or alternatives to preserve some portion of the K-25 facility. The four

schemes or alternatives we have studied include:

1. Structural evaluation to retain approximately one-third of the North Building including

process equipment, primary piping and historic structure. This would represent one

operating unit of equipment.

2. Structural evaluation to retain one cell of the North Building, including process

equipment, primary piping and historic structure. This would represent retention of about

one-twelfth of the North Building.

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3. Demolish the entire North Building and provide a new visitor’s center which would

display a recreated stage with original equipment.

4. Decontaminate and demolish all of North Building except for a portion of the facade

frame and wall. A small portion of the original Cell Floor would be retained to support

one stage or one Converter of original equipment. Provide adjacent area for additional

exhibits.

The following sections of this report describe these four schemes or alternatives in more detail.

SCHEME 1

Scheme 1 is the scheme that preserves a large portion of the North Building to give a sense of

scale along with the operational nature of the building. This scheme would save the entire K-

303-10 unit containing 8 cells. The size of the building retained would be approximately 333

feet by 99 feet above the Cell Floor and approximately 333 feet by 119 feet at the Cell Floor and

Basement.

At the Cell Floor, everything east of the expansion joint about 20 feet east of line K would be

demolished. This would include saw cutting the slab for about 35 feet at the south end where

this joint does not appear to exist. Above the Cell Floor all steel west of line K would be

retained with steel east of Line K demolished. At the roof all of the gypsum decking and bulb

tees would be removed leaving only the steel beams. Likewise, at the Operating Floor all

concrete planks would be removed leaving only the steel beams. Equipment and ducts at the

Operating Floor would be retained and decontaminated by others if they contain any residual

radioactive material. Some of this equipment will require removal and reinstallation to replace

the floor.

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This will leave an enclosed structure about 99 feet by 333 feet above the Cell Floor. There

would be a 20 foot wide exterior viewing platform at the Cell Floor along the east side. The

Basement would be this broader size as it underlies the viewing platform. The Basement would

be used for displaying other artifacts and education displays. The 20 foot wide cell floor level

exterior platform on the east side would be connected with an interior walkway through the

building south of the raised floor for the cells to the southwest corner where new elevator and

stairway would be located. Inside a 26 foot wide space 288 feet long is available for placards

and explanations of the process that occurred in the K-25 Building, with equipment views similar

to Figure 4. At the ground or Basement floor would be a 500± square foot access building with

toilets and a chain link fence would surround the site. The elevator and stairway would connect

the Basement entrance to the Cell Floor and the Operating Floor. The Operating Floor would be

somewhat open with the equipment and valve operators that existed plus a view to the south to

see the staked outline of the full original K-25 Building with appropriate displays. Figure 5

shows the original Operating Floor with its manual valves, quite different from today’s computer

operated equipment. A second emergency exit stairway would be provided outside at the north

east corner. This layout is illustrated in Figures 6 and 7.

At the Cell Floor, the Converters would be removed, their classified contents removed, they

would be decontaminated and reinstalled with their Condenser at each end. The large pipes

above would remain being pumped full of foam as is being done in the demolition procedure.

Small instrumentation tubing and piping would be removed. At the Pipe Gallery Level, some

steel diagonal rod bracing would be added to form a structural diaphragm. At the Operating

Floor, metal deck would be added over the existing steel beams with welded connections and

lightweight concrete fill over the deck to provide a floor surface. At the Roof, metal deck would

be added over the steel beams with insulation and roofing above. The two levels of metal deck

would be painted black on the underside so as to not draw attention as a shiny new material.

Special roof drains will be needed to fill the location of the original wide drains.

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At the Cell Floor surrounding the raised equipment floor on all three sides a sturdy partition wall

with lots of glass would be added. On the west and south sides which will be interior partitions,

the partition will extend up to the Operating Floor soffit with the steel beams at the Pipe Gallery

sealed in openings. On the east side this partition will be an exterior curtain wall system and

extend up to the Roof level. Once in place this curtain wall partition will surround the gaseous

diffusion equipment and pipes and separate visitors from any low level radiation remaining. For

estimating purposes, we have assumed partition walls with about 50% glass. Realistic yellow

hazard signs will be posted and a locked door for maintenance personnel will be provided. For

construction of this project, it is our understanding that this will be considered a “hot”

construction site for demolition, metal deck and curtain wall installation. After that point it will

no longer be a “hot” site allowing more relaxed personnel protection, etc. during construction.

To provide modern wind and seismic bracing, the interior of the original exterior perimeter wall

of asbestos panels, steel wind girts and studs and unreinforced concrete block masonry insulation

on the west and north sides will be strengthened with 5 inches of reinforced concrete installed as

shotcrete on the interior face. Any damaged exterior asbestos panels would be replaced from

areas being demolished and retained panels would be sealed with a clear sealer. Some new

reinforced concrete infill shear panels will be installed along the south and east facades in the

Basement floor in between curtain wall segments. Above the cell floor steel vertical diagonal

bracing in the form of rods or double angles will be provided up to the roof level on the east side

and at the three interior expansion joints. A new curtain wall enclosure will be required at the

southwest corner where the original connection to the west wing of K-25 has already been

demolished. The new exterior partition/curtain wall would be chosen by the design team to look

somewhat modern and differentiate it from the historic fabric of the retained original asbestos

panel exterior. Figure 8 is a conceptual drawing illustrating how Scheme 1 might appear.

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Another issue that will need resolution is the existing earth berm or ramp west of the building

which raises the grade from the Basement level to the Cell Floor level at the southwest building

corner. If this ramp remains entry will be at the Cell Level and parking will need to be at that

level within the courtyard space of the K-25 footprint. Alternatively this ramp can be lowered to

the Basement Level with entry similar to Scheme 2.

It is envisioned that Scheme 1 would be operated as an attended facility. When unattended, the

east exterior Cell Floor platform could be accessible for viewing through the windows if

appropriate access is provided.

SCHEME 2

Scheme 2 represents saving what appears to be the smallest practical element of the building to

give an idea of how it operated. This scheme would save the north end of unit K-303-10 which

is the northwest corner of the North Building containing 2 cells or 12 stages or converters. The

size of the building being saved is about 72 feet in the north-south direction and about 120 feet in

the east-west direction (99 feet above the Cell Floor).

In this scheme, at the Cell Floor, everything east of the expansion joint about 20 feet east of line

K would be demolished. Likewise, everything at the Cell Floor would be demolished south of

line 33 except that the concrete will need to be saw cut just south of the columns at lines K-10,

B, E to G and K where the current expansion joint is to the north of these columns as they must

be retained to support the steel columns above. The concrete columns should be increased in

size below the Cell Floor to reinforce the failed corbels originally provided for thermal

expansion. Above the Cell Floor, all steel from lines K-10 to K and 33 to 43 would be retained

with the steel at Line 33 with slotted holes for expansion being made tight joints. At the roof all

of the gypsum decking and bulb tees would be removed leaving only the steel beams. Likewise,

at the Operating Floor all concrete planks would be removed leaving only the steel beams.

Equipment and ducts at the Operating Floor would be retained and decontaminated if they

contain any residual radioactive material.

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This will leave an enclosed structure about 99 feet by 72 feet above the Cell Floor. There would

be a 20 foot wide exterior viewing platform at the Cell Floor on the east side. The Operating

Floor would be this size including the viewing platform. The Basement would be used for

displaying other artifacts and education displays. The 20 foot wide Cell Floor exterior platform

on the east side would be connected with a 6 foot walkway on the south side (new construction,

probably steel framed) to the southwest corner where new elevator and stairway would be

located. Inside a 26 foot wide space 72 feet long is available at the Cell Floor for placards and

explanation of the process that occurred in the K-25 Building. At the ground or Basement floor

would be a new 500± square foot access building with toilets and a chain link fence would

surround the site. The elevator and stairway would connect the Basement entrance to the Cell

Floor and the Operating Floor. The Operating Floor would be somewhat open with the

equipment and calve operators that existed plus a view to the south to see the stacked outline of

the full K-25 Building with appropriate displays. A second emergency exit stairway would be

provided outside at the north east corner. This layout is illustrated in Figure 9 and 10.

At the Cell Floor, similar to Scheme 1 the Converters would be removed, their classified

contents removed, they would be decontaminated and reinstalled with their Condenser at each

end. The large pipes above would remain being pumped full of foam as is being done in the

demolition procedure. Small instrumentation tubing and piping would be removed. At the Pipe

Gallery Level, some steel diagonal rod bracing would be added to form a structural diaphragm.

At the Operating Floor, metal deck would be added over the steel beams with welded

connections and lightweight concrete fill over the deck to provide a floor surface. At the Roof,

metal deck would be added over the steel beams with insulation and roofing above. The two

levels of metal deck would be painted black on the underside so as to not draw attention as a

shiny new material. Special roof drains will be needed to fill the location of the original wide

drains.

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At the Cell Floor surrounding the raised equipment floor on all three sides a sturdy partition wall

with lots of glass would be added. On the west side which will be an interior partition, the

partition will extend up to the Operating Floor soffit with the steel beams at the Pipe Gallery

sealed in openings. On the south and east sides this partition will be an exterior curtain wall and

extend up to the Roof Level. Once in place this curtain wall/partition will surround the gaseous

diffusion equipment and pipes and separate visitors from any low level radiation remaining. For

estimating purposes, we have assumed partition walls with about 50% glass. Realistic yellow

hazard signs will be posted and a locked door for maintenance personnel will be provided. For

construction of this project, it is our understanding that this will be considered a “hot”

construction site for demolition, metal deck and curtain wall installation. After that point it will

no longer be a “hot” site with more relaxed personnel protection, etc, during construction.

To provide modern wind and seismic bracing, the interior of the original exterior wall of asbestos

panels, steel wind girts and studs and unreinforced concrete block masonry insulation will be

strengthened with 5 inches of reinforced concrete installed as shotcrete on the interior face. Any

damaged exterior asbestos panels would be replaced from areas being demolished and retained

panels would be sealed with a clear sealer. Some new reinforced concrete infill shear panels will

be installed along the south and east facades in the Basement in between curtain wall. Above the

Cell Floor steel vertical diagonal bracing in the form of rods or double angles will be provided

up to the roof level.

The new exterior partition/curtain wall would be chosen by the design team to look somewhat

modern and differentiate it from the historic fabric of the retained original asbestos panel

exterior. Figure 11 is a conceptual drawing illustrating how Scheme 2 might appear.

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SCHEME 3

Scheme 3 is a minimal scheme where the entire K-25 building is demolished and a display area

is provided to place converters and other artifacts salvaged from the building. We envision a

10,000 square foot area of concrete slab on grade and an overhead open-air steel roof structure to

provide weather protection. On this slab with the artifacts would be various display boards

explaining the Manhattan Project and the activities that took place in the K-25 Building. This

display area can be located anywhere around or within the footprint of the building.

Adjacent to the display area would be an open air steel framed elevator tower with an elevator

that would rise 60 feet 3 inches above the original Basement Floor level to the level of the

original Operating Floor. Here there would be a small cantilevered viewing platform where

visitors could look out over the site and see the poles marking the extent of the K-25 Building. A

steel stairway would be supported by cantilevers and corkscrew down around the elevator tower

to provide a single access stairway.

The elevator and supported platforms will require some form of controlled access to allow this to

be built with a single exit stairway. We are basing this on the model Building Code provision for

Aviation Control Towers which allows a single exit stairway if the occupant load does not

exceed 15 people. This will need concurrence from the local Building Official and Fire Marshall

having jurisdiction. Thus it will be necessary when the facility is open to the public that an

attendant or NPS ranger be present to control access. We envision that the site would be

surrounded by a gated chain link fence or similar enclosure with access through a small 500±

square foot Visitor’s Center building with an information counter and two unisex restrooms. This

building would require heat and air conditioning and be part of the larger open air structure.

To facilitate the ability to operate the facility under this scheme attended or unattended, the gates

and doors can be arranged so that when unattended only the display area and toilets are

accessible. When and attendant is present the entire facility can be accessed with control to

prevent large groups going up in the elevator/stair structure. Figure 12 illustrates this scheme

conceptually.

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SCHEME 4

Scheme 4 is to represent a very minimal saving of the historic K-25 building while trying to give

a flavor of what the building was all about. The concept here is saving a portion of the original

full-height exterior wall, specifically an L-shaped portion at the northwest corner of the north

building. The wall to be saved would be 36 feet long on the west elevation and 62 feet along the

north elevation, from the corner of the building to the west edge of the service bay at the rear of

the converter cells. The portions saved would be the exterior transite siding, the steel wind girts

and studs, the CMU insulation and the steel framing above the Stage Cell Floor, plus the framing

and wall on these lines in the Basement. The steel beams framing into these steel members

would be disconnected and removed and the stage cell floor saw cut for removal.

For this conceptual design, we propose to save a small portion of the concrete cell floor under the

northern-most convertor and maintain it in its present location. The converter would need to be

thoroughly decontaminated with all classified parts removed (by others). The concrete floor

beneath this convertor would be saw cut to allow demolition and will require new reinforced

footings, piers and beams to support the south edge of this retained slab.

The suggested support structure to be added is shown in Figure 13. At the southeast corner

would be a new elevator with stops at the Basement, the Cell Floor and the Operating level. The

L-shaped floor around the elevator would provide viewing platforms at the Cell Floor (to look at

the converter) and at the Operating Floor (to look at the view to the south to see the extent of the

K-25 Building). A stairway connecting these three levels would complete this added steel

structure. Diagonal steel bracing would be provided as this steel structure to brace both itself as

well as the retained facade for wind and seismic forces. Form beams would span from this new

steel structure to the facade as shown at the Cell Floor level, the Pipe Gallery, Operating Floor

and Roof levels to brace the facade back to the new steel structure. Steel beams or walers would

be added at all floors to span the wind loads horizontally to the steel braces.

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It is envisioned that the retained exterior façade wall would have about 5 inches of reinforced

concrete added as shotcrete on the inside face to reinforce the wall and contain the existing

unreinforced concrete masonry units. The plan is an artist or illustrator would paint the insides

of these walls with pipes and equipment to simulate what existed on the various floors prior to

demolition. An allowance has been included in the cost estimate for this simulation. The steel

walers and braces at each level will clearly outline the floor and display boards can explain what

occurred on each level during operations.

The elevator and supported platforms will require some form of controlled access to allow this to

be built with a single exit stairway. We are basing this on the model Building Code provision for

Aviation Control Towers which allows a single exit stairway if the occupant load does not

exceed 15 people. Thus will need concurrence from the local Building Official and Fire Marshall

having jurisdiction. Thus it will be necessary when the facility is open to the public that an

attendant or NPS ranger be present to control access. We envision that the site would be

surrounded by a gated chain link fence or similar with access through a small 500± square foot

building with an information counter and two unisex restrooms. This building would require

heat and air conditioning and be part of the larger structure described in the next paragraph.

There will be very limited space to display other preserved artifacts so we assume some

supplement display area will be required. Since 10,000 square feet of covered display area is

provided in Scheme 3, we are providing 7,000 square feet in this scheme for a reasonable

comparable. This would an exterior slab on grade and an open air steel roof structure within the

enclosed chain link enclosure containing equipment artifacts and display boards. To facilitate the

ability to operate this solution attended or unattended, the gates and doors can be arranged so

unattended only the supplementary display area and toilets are accessible. Visitors can then only

look up at the building corner preserved with its painted wall surfaces. When and attendant is

present the entire facility can be accessed with control to prevent large groups going up in the

elevator/stair structure.

Figure 14 is a conceptual view of Scheme 4.

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DISCUSSION

Schemes 1 and 2 retain significant parts of the existing K-25 Building including major piping

and equipment. We have been informed by Bechtel/Jacobs that the North Wing of K-25 is

among the portions of the facility containing the lowest levels of radioactive materials. The

Convertors will have been removed, their classified internals removed, the equipment

decontaminated and reinstalled in the building. Large pipes will be pumped full of foam and left

in place with some radioactive products remaining. This area will then be surrounded by

existing structure a glass partition wall and the new metal deck concrete fill Operating Floor so

visitors have no chance of touching or coming in contact with contents containing any residual

radioactive materials. In our discussions to date with DOE personnel this has appeared to be

both a low and an acceptable risk. This needs to be confirmed by DOE as it does provide an

authentic viewing experience and complete decontamination would appear to add considerable

cost to Schemes 1 and 2.

Schemes 1, 2 and 4 would retain the original asbestos panels on the exterior of the building.

Asbestos is a potentially hazardous material although the panels are not friable nor do they

contain flakey particles. Panels that are cracked or damaged would be replaced with undamaged

panels from portion so K-25 being demolished. The panels would be sprayed with a clear

coating to protect them from damage. The panels on the north side were quite dark during our

summer and fall visits apparently from water absorbed from rain without direct sun to dry these

panels. A means should be developed to dry these panels before spraying, possibly by tenting

and dry heat, so they will have a more uniform color. In most locations these panels are 15 feet

or more above grade, but at the few locations where they are located close to grade, a chain link

fence can be provided to prevent visitors touching or damaging these panels.

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We understand that the plan is to stake out the foot print of the demolished K-25 Building with

some form of unique story poles so visitors can compare to a photograph and visualize how large

K-25 was prior to demolition. We also understand that no new buildings will be constructed

within the footprint other than those described in this report and that grass will be planted and

maintained. Since this is related site work essentially identical for all schemes such as access

roads, site utilities, etc., we have not added the cost for this work in our comparative cost

estimate.

The opportunity of opening this K-25 exhibit area to visitors in either a staffed or unstaffed mode

of operation has been discussed and considered. Having such flexibility is one way to control

future operating costs. Scheme 1 due to the large size of the retained building would probably

always be staffed when open, although with locked doors and elevator controls visitors could be

restricted to looking through windows at the Basement and Cell Floors when unstaffed.

Schemes 2, 3 and 4 can all be operated unstaffed with someone unlocking and locking an access

gate at appropriate times. Due to the single stairway exit from the Operating Floor (with interior

access in Scheme 2 restricted) and the limit of 15 people on the Operating Floor viewing

platform, the elevator would need to be closed when the facility is unstaffed. A self guiding

pamphlet could be developed so visitors in this mode could drive the staked perimeter of the

former building after viewing available exhibits and those visible through glass or chain link

fence.

We understand that many artifacts and pieces of equipment from the gaseous diffusion process

and related activities have been retained for future viewing by the public. In Schemes 1 and 2

there is sufficient space in the retained Basement to exhibit these artifacts. In Scheme 3 they

would be under the 10,000 square foot open steel roof for viewing. In Scheme 4, since one

Convertor is included in the scheme, we have provided for an area similar to Scheme 3 of 7,000

square feet.

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The schemes we have defined are somewhat arbitrary to provide four quite independent

alternatives for comparable cost estimating. No architect has been involved in developing these

schemes and the final selected alternative will certainly vary somewhat from the exact scope we

present. Likewise, the local Building Official and Fire Marshall will need to be consulted to

insure all items are acceptable from local Building Code enforcement. However, we believe the

scope of each scheme is reasonable for comparison of costs and viewer experience.

We have also included minimal provision for utilities. We assume all schemes will be fire

sprinklered. We have included heating and air conditioning only for the small entry building

containing toilets and Cell Floor exhibit areas in Scheme 1 and 2. Other enclosed areas in

Scheme 1 and 2 would only be ventilated so visitors could somewhat experience the seasonal

heat and cold experienced by working 65 years ago.

CONCEPTUAL BUDGETS

As requested by DOE, conceptual budgets have been prepared for the four schemes studied in

this report. These conceptual budgets have been prepared for comparative purposes and do not

reflect the total project costs. They reflect likely construction costs for the schemes considered

in this report. We have attempted to estimate cost increases and savings by the current

demolition contractor, Bechtel-Jacobs, referred to as Contractor 1, as they will need to carefully

demolish the adjacent portions of K-25 not being retained. We have assumed they will remove,

decommission, decontaminate and reinstall the Converters to remain in Schemes 1, 2 and 4. We

also assume they will inject foam in large pipes to remain and remove small instrumentation

tubing. Contractor 1 will also remove existing control panels and artifacts on the Operating

Floor, decontaminate them as necessary and re-install them after the new metal deck and

concrete fill is placed in Schemes 1 and 2.

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We have included a small parking lot for 20 vehicles with minimal landscaping but have not

included access roads, site utility work, staking the entire K-25 building footprint, etc. We have

not included museum displays or exhibits, signage, etc. We have not included soft costs such as

project management costs, architect and engineering fees, inspection costs, etc.

The comparative Conceptual Budget estimates for the four schemes is as follows:

Scheme 1 $24,900,000

Scheme 2 $8,600,000

Scheme 3 $4,000,000

Scheme 4 $5,200,000

Appendix A contains the detailed Conceptual Budget including a detailed description of the

scope. These costs have been escalated for a project which would be approximately 50%

complete at the beginning of 2015.

LAW/rjw

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Figures

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Figure 1. Location of K-25 Building in

East Tennessee Technology Park with project location noted.

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Figure 2. Aerial view of the K-25 Building looking south.

Portion of building to possibly be retained is at right foreground.

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Figure 4. Typical view of Cell Floor. A glass partition would be installed

in front of the raised platform to separate visitors from the original equipment.

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Figure 5. 1946 photo of the Operating floor. The manual valves and some

control panels would be retained with explanations of the operation of the facility.

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Figure 6. Scheme 1 at the Cell Floor Plan Level.

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Figure 7. Scheme 1 at the Operating Floor.

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Figure 8. Conceptual sketch of Scheme 1 with new exterior walls looking northwest.

Foreground grade shown at Cell Floor but could be lowered to Basement Floor.

Other facades not shown are the original asbestos transite panels.

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Figure 9. Scheme 2 at the Cell Floor Plan Level.

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Figure 10. Scheme 2 at the Operating Floor.

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Figure 11. Conceptual sketch of Scheme 2 looking northwest with new exterior walls.

Other facades not shown are the original asbestos transite panels.

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Figure 13. Scheme 4.

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Figure 14. Conceptual view of Scheme 4. Inside face of existing building wall would be

painted to look like interior of original building (not shown in this rendering).

Exhibit area is shown to right.

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Appendix A

Comparative Construction Probable-Costs

Draft 0120 Dec. 2010

STRUCTURAL EVALUATION: K-25 HISTORIC PRESERVATION ALTERNATIVESEast Tennessee Technology Park, Oak Ridge, TN:

FOUR-SCHEME COMPARATIVE CONSTRUCTION PROBABLE-COSTS

Exec. Summary

Conceptual Budget: SCHEME 1 SCHEME 2 SCHEME 3 SCHEME 4Entire K-303-10 North End K-303-10 All-New Minimal Existing

(8 Cells) (2 Cells)

* All Project Non-Construction / "Soft" Costs Not Included Not Included Not Included Not Included

** New Museum Exhibitry Not Included Not Included Not Included Not Included** New Furniture, Fixtures & Equipment Not Included Not Included Not Included Not Included

GRAND TOTAL, ALL-IN PROJECT COSTS: $ T.B.D. $ T.B.D. $ T.B.D. $ T.B.D.

(Also See the Detailed Summaries Sections, and the Assumptions, Qualifications & Exclusions Sections)

* "SOFT" COSTS (Encompasses All Project Costs Falling Outside the Contract for Construction including Requests for Equitable Adjustment Contingency:

DESIGN PHASE Architecture, Engineering & All Technical Disciplines + Preconstruction "Soft" Costs:CONSTRUCTION PHASE A / E Contract Admin., + Project Management & Balance of All Other "Soft" Costs:

** NEW EXHIBITRY and ORIGINAL K-25 EQUIPMENT:ALL EXCLUDED FROM THIS PROJECT SCOPE; ASSUME NEW MUSEUM EXHIBITRY & F.F.&E. SCOPE AND COSTS LIKELY TO REMAIN CONSISTENT AMONG ALL FOUR SCHEMES:

(Also See Detailed Summaries, and Assumptions, Qualifications & Exclusions Sections)

Program Indirect (Non-Construction Contract) Costs RE: Goods & Services Essential to Planning, Design, Documentation, Facilitation & Controls / Admin. of the Total Program. Includes: Architecture & Engineering + Contract Admin.; Local & State Permits, Fees & Inspection; Testing & Inspection; Project Management / D.O.E. Representation; Utilities Fees; Legal Fees; Project Insurances, Financing Costs, Accounting, Misc. Administrative, ETC.

$5,200,000$24,900,000 $8,600,000Comparative Grand Totals, Anticipated Completed-Construction, Only, Costs (including Request for Reasonable Adjustment Contingencies) for This Conventional-Delivery (Not Design / Build) Historic Preservation / New Museum Creation Project

ANTICIPATED COMPLETED-CONSTRUCTION COSTS

$4,000,000

File No. EXEC SUM 20Dec10 $Est DgnklbEng DOE K-2512/20/2010 at 11:53 PM

P. H. Waszink - Construction Consultant, Mill Valley, CA415.389.0305 / [email protected]

with Degenkolb Engineers, San Francisco

DRAFT 0120 December 2010

STRUCTURAL EVALUATION: K-25 HISTORIC PRESERVATION ALTERNATIVES, East Tennessee Technology Park, Oak Ridge, TN:-- 4-SCHEME COMPARATIVE CONCEPTUAL CONSTRUCTION BUDGET SUMMARIES --

S-1 of 12

Averaged

90.0% 142.8% 180.0% 212.0% 105.0%

Equipment-Related Scope (Removal & Sanitization; Cosmetic Reconditioning; Installation in Museum) Excluded

Radioactive Site Operations -- Completion Scope ("Contractor #1"):1 Changes to Contractor #1's Original Mass-Demolition Scope & Costs

A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope ($1,423,035) ($1,280,732) ($1,828,371) ($2,497,667) ($3,166,962) ($1,494,187)B. NET ADDS TO CONTRACT: Contractor #1 to Perform Bldg. Prep. & Bracing / Surgical Demolition & Removals $1,358,899 $1,223,009 $1,745,967 $2,385,097 $3,024,228 $1,426,844

2 $4,798,553 $4,318,698 $6,165,370 $8,422,271 $10,679,172 $5,038,481Non-Radioactive Site Operations: "Normal" Construction Scope (Contractor #2):

3 Completion of Structural Retrofit Scope for Existing Bldg. K-25 Elements to be Retained $959,496 $863,546 $1,232,798 $1,684,077 $2,135,357 $1,007,4714 Balance of Building Enclosure / Weatherproof Integrity / Exterior Assemblies Scope $395,710 $356,139 $508,424 $694,538 $880,652 $415,4965 Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems $3,341,076 $3,006,968 $4,292,746 $5,864,152 $7,435,559 $3,508,1306 Interior Architectural $1,712,847 $1,541,562 $2,200,732 $3,006,335 $3,811,937 $1,798,4897 Base Bldg. Provisions for Museum Displays, Murals, Signage, Lighting & Sound $827,036 $744,332 $1,062,608 $1,451,588 $1,840,567 $868,3888 Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only) N / A $0 $0 $0 $0 $0 $09 Allocation for New 500-sq.ft. Visitors' Center Bldg. $87,500 $78,750 $112,423 $153,577 $194,731 $91,87510 Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes) $439,975 $395,978 $565,297 $772,230 $979,164 $461,974

Any Aspect of Museum Facility Personnel / Operation, Maintenance, etc., Costs Excluded $11,248,251 $16,057,995 $21,936,200 $27,814,405 $13,122,960Any Aspect of New Museum Exhibitry or Non-Fixed Furniture Fixtures & Equipment ExcludedOriginal 44-Acre K-25 Building Entire-Footprint Commemorative Lawns or Slabs + New Full-Height Story Poles ExcludedAddressing Apparent Toxic Soils Zones Underlying Original-Bldg. Slabs-on-Grade to Remain ExcludedSite Utilities Beyond 5'0 Stub-Outs at Building Perimeters Excluded

(NOTE: As-Calculated Costing is S.F. Bay Area Local Adjusted by Location Factor Below at II.H) Factors: LOW RANGE Averaged HIGH RANGE Factors:

I. A Subtotal As-Calculated Subtotals from Supporting Trade Cost Estimate Sections: 90.0% $11,248,251 $12,185,605 $13,122,960 105.0%

II. INTEGRAL PROJECT FACTORS (RE: Prime General Contractor Role)

A Conceptual Budget Phase Design / Program & Estimating Contingencies on Trade Scope 25.0% $2,812,063 $3,374,475 $3,936,888 30.0%

SUBTOTALS, ADJUSTED TRADE SCOPE RANGE: $14,060,314 $15,560,081 $17,059,848B Allow for Bonding on Selected Subs 1.50% $210,905 $276,051 $341,197 2.00%C DIV. 1 -- Basic General Contractor's General Conditions (Assume Approx. 10 to 14 Months) 12.0% $1,349,790 $1,659,117 $1,968,444 15.0%D Supplementary Conditions (Includes Cost Impacts / Premiums RE: Client Administrative Requirements, etc.) 5.0% $562,413 $806,125 $1,049,837 8.0%E Security Requirements & Procedures (Applies to All Onsite Operations) 3.0% $485,503 $753,234 $1,020,966 5.0%F General Contractor's Home Office Overhead + Profit, and Insurance (Contractor #1 Role Currently in Re-Bid Process) 6.0% $1,000,135 $1,357,679 $1,715,223 8.0%

CONSTRUCTION SUBTOTALS RANGE: $17,669,060 $20,412,287 $23,155,515Apply Other Factors:

G Construction Operational Requirements / Phasing: See EST. DETAIL Sections 0.0% $0 $0 $0 0.0%H Location Factor ($xxx / S.F. Factor = $yyy x Knoxville Factor = ) 78.9% (R.S. Means '09) 75.0% ($4,417,265) ($4,524,184) ($4,631,103) 80.0%I Procedural Requirements RE: Rad Site Operations (See EST. DETAIL Sections) 0.0% $0 $0 $0 0.0%J 100% Payment & Performance Bond (Assume Required for General Contractor) 1.50% $265,036 $421,962 $578,888 2.50%

CONSTRUCTION SUBTOTAL RANGE BEFORE ESCALATION & BIDDING CLIMATE FACTORS APPLIED: $13,516,831 $16,310,065 $19,103,300

Trade Costs in High Range

I.

Apply High Range Factor to

Trade Cost Subtotals:

Apply High Range All-In Project Factor to Adjusted Trade Cost Subtotals:

121.8%

SUBTOTALS FORWARD, AS-CALCULATED PROBABLE COST OF WORK IN TRADES -- TO BE SET INTO RANGE:

Trade Costs in Low Range

100.0%

$12,498,057

HIGH RANGE, ALL-IN PROJECT TOTAL

COSTS

LOW RANGE, ALL-IN PROJECT TOTAL

COSTS

AVERAGED ALL-IN PROJECT TOTAL

COSTS

By Contractor #2: Completion of All Radioactive-Site Operations (Two Upper Decks Replaced; New Glazed Enclosure Walls to Contain Formerly Radioactive Areas)

PROJECT COMPLETED-CONSTRUCTION COST SUMMARY PREVIEW & BREAKDOWN:HIGH RANGE

Apply Low Range Factor to

Trade Cost Subtotals:

Apply Low Range All-In Project Factor to Adjusted Trade Cost Subtotals:

Averaged All-In Cost Subtotals w/

Factor Noted:

CONCEPTUAL CONSTRUCTION BUDGET SUMMARY: Proposed Manhattan Project Bldg. K-25 Historic Preservation Alternatives LOW RANGE

SCHEME 1: Save Entire K-303-10 Unit from North Bldg., Containing 8 Cells

As-Calculated:

File No. SUMMARY CALCS 20Dec10 $Est DgnklbEng DOE K-2512/20/2010 at 11:54 PM printing P. H. WASZINK - CONSTRUCTION CONSULTANT, Mill Valley, CA Tel. 415.389.0305 / email: [email protected]



S-2 of 12


III. NOTED CONDITIONING FACTORS RE: CONSTRUCTION MARKETPLACE:Factors: Factors:

A Basic Cost Escalation Factor -- General Allowance (Assume Midpoint of Construction Phase = Start of 2015) 20.0% $2,703,366 $3,739,596 $4,775,825 25.0%

CONSTRUCTION SUBTOTAL RANGE WITH ESCALATION & BEFORE BIDDING CLIMATE FACTOR: $16,220,197 $20,049,661 $23,879,125

B Current Bidding Climate Factor: -10.0% 5.0%

Construction Marketplace Volatility (Hypercompetition v. Cost Spikes) Exposures Require Cushioning Factors ($1,351,683) ($198,259) $955,165

ANTICIPATED RANGE, POINT-OF-AWARD CONSTRUCTION COST TOTALS AS A CONVENTIONAL-DELIVERY FULLY-DESIGNED PROJECT:

ANTICIPATED POINT-OF-AWARD DESIGN / BUILD CONSTRUCTION TOTAL RANGE WITH BIDDING CLIMATE FACTOR: $14,868,514 $19,851,402 $24,834,290Note Gross Project Factors at This Point of Cost Development (Point-of-Award Construction Cost Divided by Raw Trade Cost) 132.2% LOW RANGE Averaged HIGH RANGE 189.2%

Proceed to D.O.E.-Direct Factors Section, Below; Additional Assumptions, Qualifications & Exclusions Incorporated into Estimate Detail Section:

V. ADD NOTED D.O.E.-DIRECT PROJECT COST ALLOCATIONS:INCLUDED D.O.E.-Controlled Course-of-Construction Reserves for Construction Contract: Factors: Factors:

A Request for Equitable Adjustment Contingency -- Plan Check Impacts on Scope & Costs 0.0% $0 $0 $0 0.0%B Request for Equitable Adjustment Contingency -- For Implementation of Final Construction Documents 8.0% $1,189,481 $2,084,798 $2,980,115 12.0%C Request for Equitable Adjustment Contingency -- For D.O.E.'s Discretionary Scope Changes Identified During Construction 0.0% Excluded Excluded Excluded 0.0%

TOTAL CONSTRUCTION AT COMPLETION (Including D.O.E.-Controlled Course-of-Construction Reserves): $16,057,995 $21,936,200 $27,814,405

* EXCLUDED D.O.E.-Direct Project Non-Construction-Related "Soft" Costs (Anticipated Range: 30% to 40%):

A DESIGN PHASE Architecture, Engineering & All Technical Disciplines + Preconstruction "Soft" Costs: L.S. Excluded Excluded Excluded L.S.B CONSTRUCTION PHASE Project Management & Balance of All Other "Soft" Costs: L.S. Excluded Excluded Excluded L.S.

** EXCLUDED D.O.E.-Direct Project Non-Construction Original K-25 Equipment & Piping and New Museum Exhibitry & "F.F & E." Costs:

A New Museum Exhibitry + Furniture, Fixtures & Equipment Cost Allocations L.S. Excluded Excluded Excluded L.S.B Manhattan Project Original Equipment Removal / Handling, Offsite Sanitization & Reinstallation (by Contractor #1 / Others) L.S. Excluded Excluded Excluded L.S.

X Contingency on the Above D.O.E.-Direct Project Elements 0.0% $0 $0 $0 0.0%EXCLUDED: All D.O.E.-Direct Project Non-Construction-Related Costs: 0.0% $0 $0 $0 0.0%

LOW RANGE Averaged HIGH RANGE

Note Gross Project Factors at This Point of Cost Development (Total Construction Cost Divided by Raw Trade Cost) 142.8% 180.0% 212.0%$24,9

00,00

0

$27,814,405TOTAL PROBABLE-COSTS RANGE: COMPLETED-CONSTRUCTION-ONLY INCLUDING ALL FACTORS, BUT EXCLUDING F.F. & E., EXHIBITRY & NOTED "SOFT" COSTS:

(Construction Total / As-Calculated Trade Costs)


(Project Construction Total / Raw Trade Costs)


$21,936,200$16,057,995




S-3 of 12


V. ASSUMPTIONS & QUALIFICATIONS TEXT SECTION:


A THIS COMPARATIVE CONCEPTUAL DESIGN / BUILD PROJECT BUDGETING WORK PRODUCT IS INTENDED TO BE ACCURATE WITHIN 15% HIGH-TO-LOW (30% RANGE).

C BUDGETING BASIS: Reports & Figures, Meetings & Correspondence, DOE-Provided Photodocumentation and Other Documents / Data Furnished by Degenkolb Engineers, Inc., and USDOE;D … Additionally, Limited Direct Field Observation + Access to Bechtel Jacobs Personnel by PHW-CC.E Quantification & Order-of-Magnitude Valuation Levels Developed Herein for Comparative Conceptual Budgeting of All Schemes Intended to Be (a) Even-Handed & (b) Reasonably Accurate for Funding-Level Assessments.F ASSUME No Substantive Change in Project Scope Intent & Budget Subsequent to This Study.G ASSUME Work to be Bid by, Awarded to and Performed by a Single, Prime General Contractor (Compressed Schedule May Drive Shift Work / Premium Costs -- Currently Excluded).H ASSUME All Work Completed Under a "Normal" Construction Schedule, Therefore Shift Work Premiums Are Not Contemplated Nor Included.I ASSUME That Mass v. Surgical Demolition / Temporary Bracing And Related Scope & Cost Adjustment Negotiations with Contractor #1 (Currently Bechtel-Jacobs) Will Stand the Test of Reasonability.J ASSUME Construction Trade Scope Will be Fully-Designed by A/E Team; Exception: Design / Build Subcontractor for Fire Protection System -- Also See Estimate Detail Sections.K ASSUME Full Compliance with ADA Accessibility Requirements & Standards Throughout the Immediate Museum Facility / Site (Building and Parking Lot / Access Walkways).L ASSUME Moderate Stringency RE: Absoluteness of Detailed Historic-Fabric Preservation and Replication Throughout the Design & Detailing Spectrum.

N ASSUME All New Wood Windows to Match (E) Detailing, Operating Level.O ASSUME Asbestos-Cement Exterior Wall Panel System Will Be Repaired As-Needed Using Salvaged Intact Original Panels from K-25 Areas Being Demolished by Contractor #1 Per base Contract for Mass Demolition.P INCLUDE Adjustment Factors As Appropriate RE: Cost Impacts Per Anticipated Change Order Terms & Conditions Carried in DOE / Bechtel Jacobs Base Contract

RE: Comprehensive Security Requirements & Procedures and Onsite Labor Premiums Based on DOE Site Requirements & Procedures -- Cost Impacts Carried As Follows:Q a. ASSUME Ambient DOE Security Requirements & Procedures Will Remain Consistent Throughout All Ongoing Onsite Operations; Premium Carried in This Summary.R b. ASSUME Stringent Safety & Protective Gear Requirements & Procedures In Place During Radioactive Site Operations Phase; Premium Carried in Detailed Estimate Sections 1 & 2.S INCLUDE Composite Trade Scope Task Line Item Pricing As-Needed (i.e., for Multi-Trade Project Tasks / Building Assemblies / Systems).T INCLUDE Location Factor, Based on Two R.S. Means Location Factors As Noted at II.H, Above: "As-Calculated" Costing is S.F. Bay Area Local & Factor Applied "In Reverse", Then Knoxville Factor is Applied.U INCLUDE Net Scope & Cost Adjustment Impacts (Including Delay Costs & All Mark-Ups) to Contractor #1's Base Contract Stemming from Tasks Deleted / Reduced As Well As Added to Contractor #1's Scope of Work.

EXCLUDE All D.O.E.-Direct "Soft" Costs: DESIGN PHASE Architecture, Engineering & All Technical Disciplines + Preconstruction "Soft" Costs: CONSTRUCTION PHASE Project Management & Balance of All Other "Soft" Costs:

W EXCLUDE Any Allocation for D.O.E. Internal Administrative / Management Costs Relating to This Project.

Y EXCLUDE Hazardous Materials Issues Scope or Costs of Any Kind (i.e., Toxic Soils, Mold, Asbestos, Lead); Assume Tested for, Encapsulated, Handled / Mitigated / Removed by Others.Z EXCLUDE Any Cost Allocations for New Museum Exhibitry (Base Building Provisions Such as Structural Support Included), i.e., Beyond Orig. K-25 Equipment Related Scope by Others; Also See Estimate Detail Sections.

Z.2 Specifically Exclude, and Do Not Imply Nor Recommend Reliance Upon Unreviewed Rough Budget Data RE: Exhibitry and Related F. F. & E. Carried in Separate Work Product Prepared by Informal Learning Experiences, Inc.AA EXCLUDE Any New Project / Program Non-Fixed "F.F. & E." -- Furniture, Fixtures & Equipment Scope or Costs; Also See Detailed Summary Section Above.AB EXCLUDE Fully-Enclosed Weatherproof Integrity Systems Scope or Costs from Covered Open-Air Structures, Schemes 3 & 4 (i.e., Roofed-Only Structure / Open Sides).AC EXCLUDE Site-Mounted Signage & Lighting Beyond Immediate K-25 Site Visitor Parking Lot & Access Walkways.AD EXCLUDE Heating & Air Conditioning with the Exception of the New Visitor Center Building of Approx. 500 Sq. Ft. Per Scheme, Plus Fully-Enclosed Exhibition Areas Only in Schemes 1 & 2.AE EXCLUDE Site Lighting Beyond Building-Mounted Lighting Serving Immediate Building Perimeters + Parking & Access Walkways Included for Each Scheme.


GIVEN POTENTIALLY MAJOR DIFFERENCES IN INTENT, SCOPE AND METHODOLOGY, THIS WORK PRODUCT IS NOT TO BE COMPARED WITH ANY BUDGETS BY OTHERS, IN THE ABSENCE OF DETAILED RECONCILIATION INCLUDING FULL PARTICIPATION BY PHW-CC, FOR THIS FACILITY (e.g., CONVERT A VESTIGE OF K-25 INTO A MUSEUM).

B

V

ASSUME Exterior Wall System Will Be Non-Structural (and Stand Outside / Enclose All Structure, SOG to Roof Level); New Structural Bracing / Strengthening Systems Assumed to Stand in a Plane Within the Enclosed Building. Assume Ext. Wall / "Curtain Wall System" to be Prefinished Metal Frame System w/ 50% Full-Height View Windows and 50% Full-Height Solid Panels -- Exact Materials Not Yet Known.

M

EXCLUDE Any Provision or Budget Allocation for Radioactive Project Element Testing / Identification, Handling / Removal / Decontamination; Temporary Protection Related to Same; or Transport, Placement and Re-Installation in / on the Bldg. K-25 Vestige in This Scope.

X




S-4 of 12

Averaged

90.0% 142.8% 180.0% 212.0% 105.0%



A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope ($355,347) ($319,812) ($456,564) ($623,694) ($790,824) ($373,114)B. NET ADDS TO CONTRACT: Contractor #1 to Perform Bldg. Prep. & Bracing / Surgical Demolition & Removals $433,242 $389,918 $556,646 $760,413 $964,179 $454,904

2 $1,276,817 $1,149,135 $1,640,505 $2,241,030 $2,841,555 $1,340,658Non-Radioactive Site Operations: Construction Scope (Contractor #2):

3 Completion of Structural Retrofit Scope for Existing Bldg. K-25 Elements to be Retained $330,731 $297,657 $424,936 $580,488 $736,040 $347,2674 Balance of Building Enclosure / Weatherproof Integrity / Exterior Assemblies Scope $98,289 $88,460 $126,285 $172,513 $218,741 $103,2035 Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems $1,327,894 $1,195,104 $1,706,130 $2,330,677 $2,955,225 $1,394,2886 Interior Architectural $517,321 $465,588 $664,674 $907,985 $1,151,296 $543,1877 Base Bldg. Provisions for Museum Displays, Murals, Signage, Lighting & Sound $189,378 $170,440 $243,320 $332,390 $421,460 $198,8478 Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only) N / A $0 $0 $0 $0 $0 $09 Allocation for New 500-sq.ft. Visitors' Center Bldg. $87,500 $78,750 $112,423 $153,577 $194,731 $91,87510 Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes) $439,975 $395,978 $565,297 $772,230 $979,164 $461,974

Any Aspect of Museum Facility Personnel / Operation, Maintenance, etc., Costs Excluded $3,911,219 $5,583,653 $7,627,610 $9,671,567 $4,563,088Any Aspect of New Museum Exhibitry or Non-Fixed Furniture Fixtures & Equipment ExcludedOriginal 44-Acre K-25 Building Entire-Footprint Commemorative Lawns or Slabs + New Full-Height Story Poles ExcludedAddressing Apparent Toxic Soils Zones Underlying Original-Bldg. Slabs-on-Grade to Remain ExcludedSite Utilities Beyond 5'0 Stub-Outs at Building Perimeters Excluded



II. INTEGRAL PROJECT FACTORS (RE: Prime Builder / General Contractor Role)

A Conceptual Budget Phase Design / Program & Estimating Contingencies on Trade Scope 25.0% $977,805 $1,173,366 $1,368,927 30.0%

SUBTOTALS, ADJUSTED TRADE SCOPE RANGE: $4,889,023 $5,410,519 $5,932,015B Allow for Bonding on Selected Subs 1.50% $73,335 $95,988 $118,640 2.00%C DIV. 1 -- Basic General Contractor's General Conditions (Assume Approx. 10 to 14 Months) 12.0% $469,346 $576,905 $684,463 15.0%D Supplementary Conditions (Includes Cost Impacts / Premiums RE: Client Administrative Requirements, etc.) 5.0% $195,561 $280,304 $365,047 8.0%E Security Requirements & Procedures (Applies to All Onsite Operations) 3.0% $168,818 $261,913 $355,008 5.0%F General Contractor's Home Office Overhead + Profit, and Insurance (Contractor #1 Role Currently in Re-Bid Process) 6.0% $347,765 $472,089 $596,414 8.0%


G Construction Operational Requirements / Phasing: See EST. DETAIL Sections 0.0% $0 $0 $0 0.0%H Location Factor ($xxx / S.F. Factor = $yyy x Knoxville Factor = ) 78.9% (R.S. Means '09) 75.0% ($1,535,962) ($1,573,140) ($1,610,318) 80.0%I Procedural Requirements RE: Rad Site Operations (See EST. DETAIL Sections) 0.0% $0 $0 $0 0.0%J 100% Payment & Performance Bond (Assume Required for General Contractor) 1.50% $92,158 $146,724 $201,290 2.50%


121.8%

I.


$4,345,798



COSTS


COSTS


COSTS

PROJECT COMPLETED-CONSTRUCTION COST SUMMARY PREVIEW & BREAKDOWN:LOW RANGE HIGH RANGE

Apply Low Range Factor to Trade Cost

Subtotals:



CONCEPTUAL CONSTRUCTION BUDGET SUMMARY: Proposed Manhattan Project Bldg. K-25 Historic Preservation Alternatives


Factor Noted:SUBTOTALS FORWARD, AS-CALCULATED PROBABLE COST OF WORK IN TRADES -- TO BE SET INTO RANGE:

As-Calculated:

100.0%

SCHEME 2: Save the North End, Only, of K-303-10 Unit from the North Bldg., Containing 2 Cells


Apply High Range Factor to Trade Cost

Subtotals:




S-5 of 12



A Basic Cost Escalation Factor -- General Allowance (Assume Midpoint of Constr. Phase = 2015) 20.0% $940,009 $1,300,324 $1,660,640 25.0%



Construction Marketplace Volatility (Hypercompetition v. Cost Spikes) Exposures Require Cushioning Factors ($470,004) ($68,938) $332,128





A Request for Equitable Adjustment Contingency -- Plan Check Impacts on Scope & Costs 0.0% $0 $0 $0 0.0%B Request for Equitable Adjustment Contingency -- For Implementation of Final Construction Documents 8.0% $413,604 $724,922 $1,036,239 12.0%C Request for Equitable Adjustment Contingency -- For D.O.E.'s Discretionary Scope Changes Identified During Construction 0.0% $0 $0 $0 0.0%




EXCLUDED D.O.E.-Direct Project Non-Construction Original K-25 Equipment & Piping and New Museum Exhibitry & "F.F & E." Costs:




Note Gross Project Factors at This Point of Cost Development (Total Construction Cost Divided by Raw Trade Cost) 142.8% 180.0% 212.0%(Project Construction Total /

Raw Trade Costs)(Project Construction

Total / Raw Trade Costs)



TOTAL PROBABLE-COSTS RANGE: COMPLETED-CONSTRUCTION-ONLY INCLUDING ALL FACTORS, BUT EXCLUDING F.F. & E., EXHIBITRY & NOTED "SOFT" COSTS: $5,583,653 $7,627,610 $9,671,567

$8,60

0,000




S-6 of 12












Program Indirect (Non-Construction Contract) Costs RE: Goods & Services Essential to Planning, Design, Documentation, Facilitation & Controls / Admin. of the Total Program. Includes: Architecture & Engineering + Contract Admin.; Local & State Permits, Fees & Inspection; Testing & Inspection; Project Management / D.O.E. Representation; Utilities Fees; Legal Fees; Project Insurances, Financing Costs, Accounting, Misc. Administrative ETC

BGIVEN POTENTIALLY MAJOR DIFFERENCES IN INTENT, SCOPE AND METHODOLOGY, THIS WORK PRODUCT IS NOT TO BE COMPARED WITH ANY BUDGETS BY OTHERS, IN THE ABSENCE OF DETAILED RECONCILIATION INCLUDING FULL PARTICIPATION BY PHW-CC, FOR THIS FACILITY (e.g., CONVERT A VESTIGE OF K-25 INTO A MUSEUM).

MASSUME Exterior Wall System Will Be Non-Structural (and Stand Outside / Enclose All Structure, SOG to Roof Level); New Structural Bracing / Strengthening Systems Assumed to Stand in a Plane Within the Enclosed Building. Assume Ext. Wall / "Curtain Wall System" to be Prefinished Metal Frame System w/ 50% Full-Height View Windows and 50% Full-Height Solid Panels -- Exact Materials Not Yet Known.


V

X




S-7 of 12

Averaged

90.0% 134.7% 170.4% 200.9% 105.0%



A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope N / A $0 $0 $0 $0 $0 $0B. NET ADDS TO CONTRACT: Contractor #1 to Perform Bldg. Prep. & Bracing / Surgical Demolit N / A $0 $0 $0 $0 $0 $0

2 N / A $0 $0 $0 $0 $0 $0Non-Radioactive Site Operations: Construction Scope (Contractor #2):

3 Completion of Structural Retrofit Scope for Existing Bldg. K-25 Elements to be Retained N / A $0 $0 $0 $0 $0 $04 Balance of Building Enclosure / Weatherproof Integrity / Exterior Assemblies Scope N / A $0 $0 $0 $0 $0 $05 Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems $699,875 $629,888 $899,227 $1,228,399 $1,557,571 $734,8696 Interior Architectural $37,500 $33,750 $48,181 $65,819 $83,456 $39,3757 Base Bldg. Provisions for Museum Displays, Murals, Signage, Lighting & Sound $70,000 $63,000 $89,939 $122,862 $155,785 $73,5008 Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only) $787,500 $708,750 $1,011,811 $1,382,195 $1,752,580 $826,8759 Allocation for New 500-sq.ft. Visitors' Center Bldg. $75,000 $67,500 $96,363 $131,638 $166,912 $78,75010 Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes) $465,475 $418,928 $598,061 $816,987 $1,035,914 $488,749

Any Aspect of Museum Facility Personnel / Operation, Maintenance, etc., Costs Excluded $1,921,815 $2,743,582 $3,747,900 $4,752,218 $2,242,118Any Aspect of New Museum Exhibitry or Non-Fixed Furniture Fixtures & Equipment ExcludedOriginal 44-Acre K-25 Building Entire-Footprint Commemorative Lawns or Slabs + New Full-Height Story Poles ExcludedAddressing Apparent Toxic Soils Zones Underlying Original-Bldg. Slabs-on-Grade to Remain ExcludedSite Utilities Beyond 5'0 Stub-Outs at Building Perimeters




A Conceptual Budget Phase Design / Program & Estimating Contingencies on Trade Scope NEW CONSTR.: 20.0% $384,363 $472,446 $560,529 25.0%



G Construction Operational Requirements / Phasing: See EST. DETAIL Sections 0.0% $0 $0 $0 0.0%H Location Factor ($xxx / S.F. Factor = $yyy x Knoxville Factor = ) 78.9% (R.S. Means '09) 75.0% ($712,352) ($731,204) ($750,056) 80.0%I Procedural Requirements RE: Rad Site Operations (See EST. DETAIL Sections) 0.0% $0 $0 $0 0.0%J 100% Payment & Performance Bond (Assume Required for General Contractor) 1.50% $42,741 $68,249 $93,757 2.50%


No Change to Contr. #1 Scope

121.8%


COSTS


$2,135,350



COSTS


COSTS



Subtotals:I. SUBTOTALS FORWARD, AS-CALCULATED PROBABLE COST OF WORK IN TRADES -- TO BE SET INTO RANGE:

As-Calculated:

100.0%



Subtotals:



Factor Noted:

SCHEME 3: All New: 10,000 S.F. Covered Open-Air Display Structure + Viewing Tower + Small Visitor Center (100% of Orig. Bldg. K-25 Demolished)






S-8 of 12



A Basic Cost Escalation Factor -- General Allowance (Assume Midpoint of Constr. Phase = 2015) 20.0% $435,959 $604,727 $773,495 25.0%








A Request for Equitable Adjustment Contingency -- Plan Check Impacts on Scope & Costs 0.0% $0 $0 $0 0.0%B Request for Equitable Adjustment Contingency -- For Implementation of Final Construction Documents 8.0% $191,822 $337,241 $482,661 12.0%C Request for Equitable Adjustment Contingency -- For D.O.E.'s Discretionary Scope Changes Identified During Construction 0.0% $0 $0 $0 0.0%








Note Gross Project Factors at This Point of Cost Development (Total Construction Cost Divided by Raw Trade Cost) 134.7% 170.4% 200.9%(Project Construction

Total / Raw Trade Costs)$4,00

0,000








S-9 of 12












Program Indirect (Non-Construction Contract) Costs RE: Goods & Services Essential to Planning, Design, Documentation, Facilitation & Controls / Admin. of the Total Program. Includes: Architecture & Engineering + Contract Admin.; Local & State Permits, Fees & Inspection; Testing & Inspection; Project Management / D.O.E. Representation; Utilities Fees; Legal Fees; Project Insurances, Financing Costs, Accounting, Misc. Administrative ETC

V


X

B


MASSUME Ext. / Weatherproof Curtain Wall System Will Be Non-Structural (and Stand Outside / Enclose All Structure, SOG to Roof Level); New Structural Bracing / Strengthening Systems Assumed to Stand in a Plane Within the Enclosed Building.




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Averaged

90.0% 142.8% 180.0% 212.0% 105.0%



A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope ($53,145) ($47,831) ($68,283) ($93,278) ($118,274) ($55,802)B. NET ADDS TO CONTRACT: Contractor #1 to Perform Bldg. Prep. & Bracing / Surgical Demolition & Removals $146,108 $131,497 $187,725 $256,444 $325,163 $153,413

2 $153,426 $138,084 $197,128 $269,289 $341,450 $161,098Non-Radioactive Site Operations: Construction Scope (Contractor #2):

3 Completion of Structural Retrofit Scope for Existing Bldg. K-25 Elements to be Retained $196,790 $177,111 $252,843 $345,399 $437,955 $206,6294 Balance of Building Enclosure / Weatherproof Integrity / Exterior Assemblies Scope $47,342 $42,608 $60,827 $83,093 $105,359 $49,7095 Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems $822,170 $739,953 $1,056,356 $1,443,046 $1,829,737 $863,2786 Interior Architectural $40,157 $36,141 $51,595 $70,482 $89,369 $42,1657 Base Bldg. Provisions for Museum Displays, Murals, Signage, Lighting & Sound $160,488 $144,439 $206,201 $281,683 $357,165 $168,5128 Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only) $547,500 $492,750 $703,450 $960,955 $1,218,460 $574,8759 Allocation for New 500-sq.ft. Visitors' Center Bldg. $75,000 $67,500 $96,363 $131,638 $166,912 $78,75010 Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes) $463,975 $417,578 $596,133 $814,354 $1,032,576 $487,174

Any Aspect of Museum Facility Personnel / Operation, Maintenance, etc., Costs Excluded $2,339,829 $3,340,338 $4,563,105 $5,785,872 $2,729,800Any Aspect of New Museum Exhibitry or Non-Fixed Furniture Fixtures & Equipment ExcludedOriginal 44-Acre K-25 Building Entire-Footprint Commemorative Lawns or Slabs + New Full-Height Story Poles ExcludedAddressing Apparent Toxic Soils Zones Underlying Original-Bldg. Slabs-on-Grade to Remain ExcludedSite Utilities Beyond 5'0 Stub-Outs at Building Perimeters




A Conceptual Budget Phase Design / Program & Estimating Contingencies on Trade Scope 25.0% $584,957 $701,949 $818,940 30.0%



G Construction Operational Requirements / Phasing: See EST. DETAIL Sections 0.0% $0 $0 $0 0.0%H Location Factor ($xxx / S.F. Factor = $yyy x Knoxville Factor = ) 78.9% (R.S. Means '09) 75.0% ($918,867) ($941,108) ($963,349) 80.0%I Procedural Requirements RE: Rad Site Operations (See EST. DETAIL Sections) 0.0% $0 $0 $0 0.0%J 100% Payment & Performance Bond (Assume Required for General Contractor) 1.50% $55,132 $87,775 $120,419 2.50%


121.8%


$2,599,810



COSTS


COSTS


COSTS


Subtotals:



Factor Noted:






Subtotals:I. SUBTOTALS FORWARD, AS-CALCULATED PROBABLE COST OF WORK IN TRADES -- TO BE SET INTO RANGE:

As-Calculated:

100.0%

SCHEME 4 (Minimal): Save Portion of NW Full-Height Ext. Wall ONLY + Floor Under 1 Converter + Elevator Tower + Small Visitor Center & 7,000 SF Covered Open-Air Display Structure




S-11 of 12



A Basic Cost Escalation Factor -- General Allowance (Assume Midpoint of Constr. Phase = 2015) 20.0% $562,346 $777,900 $993,453 25.0%








A Request for Equitable Adjustment Contingency -- Plan Check Impacts on Scope & Costs 0.0% $0 $0 $0 0.0%B Request for Equitable Adjustment Contingency -- For Implementation of Final Construction Documents 8.0% $247,432 $433,674 $619,915 12.0%C Request for Equitable Adjustment Contingency -- For D.O.E.'s Discretionary Scope Changes Identified During Construction 0.0% $0 $0 $0 0.0%








Note Gross Project Factors at This Point of Cost Development (Total Construction Cost Divided by Raw Trade Cost) 142.8% 180.0% 212.0%





(Project Construction Total / Raw Trade Costs)$5

,200,0

00




S-12 of 12













B

M

X

V


SCHEME 4 (Minimal): Save Portion of NW Full-Height Ext. Wall ONLY + Floor Under 1 Converter + Elevator Tower + Small Visitor Center & 7,000 SF Covered Open-Air DisplayStructure

ASSUME Ext. / Weatherproof Curtain Wall System Will Be Non-Structural (and Stand Outside / Enclose All Structure, SOG to Roof Level); New Structural Bracing / Strengthening Systems Assumed to Stand in a Plane Within the Enclosed Building.


Draft 0120 December 2010

USDOE Oak Ridge, TN: Building K-25SUPPORTING DETAILED CONSTRUCTION TRADE COST DATA

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A B C D E F G H I J K L M N O P Q

PROJECT TRADE COST ESTIMATE SECTIONS:

Quantities Units Trade Cost Rates Line Item Trade Costs

Radioactive Site Operations -- Completion Scope ("Contractor #1"):

A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope

Deduct Portion of Mass-Demolition Scope (Assume Labor Premium Noted Below is Integral) (158,115) GSF $9.00 ($1,423,035)

A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope ($1,423,035)

B. NET ADDS TO CONTRACT: Contractor #1 to Perform Bldg. Prep. & Bracing / Surgical Demolition & Removals

CREATE "AIR GAP" BETWEEN THE K-25 ELEMENT TO BE PRESERVED and MASS DEMOLITION PER BASE CONTRACTStrip Off & Remove Roofing at Zone to be Surgicaly Removed to Form "Air Gap" (at 110%: Lapped onto Portion to Remain) 15,246 SF $1.50 $22,869

Developed Length WidthLayout, Sawcutting & Removal of Slab Sections Plus All Support Structure including Foundations 462.0 30.0 13,860 SF $20.00 $277,200

Temporary Shoring & Bracing at "Cut-Off" Line -- All Levels 2,160 LF $15.00 $32,400Safety Provisions for Existing Portion of K-25 to Remain 118,148 GSF $0.25 $29,537

SURGICAL DEMOLITION ON / TO / WITHIN PRESEVED K-25 BLDG. ELEMENTTHIS PROJECT SCOPE EXCLUDES ALL DECONTAMINATION / EQUIPMENT PIPING & CONDUIT REMOVAL / REINSTALLATION SCOPE

Allowance for Premium to Selectively Remove Uncontaminated Piping, etc. & Store for Reinstallation + Reinstall 118,148 SF $2.00 $236,296

Demolish & Remove Precast Concrete Panel Operating Floor Level Walking Surface 26,107 SF $2.00 $52,214Demolish & Remove Gypsum Cast Roof Surface 26,107 SF $4.00 $104,428

Subtotal Labor & Materials Combined: $754,944 Labor Premium:Basic Labor Portion: 90% $679,450 Averaged Seasonal Efficiency Factor (Avg. 5 200% $1,358,899 $603,955

B. NET ADDS TO CONTRACT: Contractor #1 to Perform Bldg. Prep. & Bracing / Surgical Demolition & Removals $1,358,899

1

Labor Premium RE: Radioactive Jobsite Safety / Protective Requirements & Procedures - All Operations

Assumed base Contract Rate:

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Changes to Contractor #1's Original Mass-Demolition Scope & Costs

Descriptions Supporting Calculations


File No. EST DETAIL 20Dec10 $Est DgnklbEng DOE K-2512/20/2010 at 11:55 PM

P. H. Waszink - Construction Consultant, Mill Valley, CA415.389.0305 email: [email protected]



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Quantities Units Trade Cost Rates Line Item Trade CostsDescriptions Supporting Calculations


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5051525354555657585960616263646566676869707172737475767778798081828384858687


CLEAN EXISTING SURFACES Assumes Eventual Finishes to Existing Plant to be Minimal)Basement + Cell Floors 65,934 SF $1.50 $98,901Perim. Walls to Remain 48,242 SF $1.00 $48,242

Underside of Structure Above 65,934 SF $0.50 $32,967

EXTERIOR ENCLOSURE ASSEMBLIES (Complete Installations Including Sealants & Flashings)Exterior Perimeter Curtain Wall - Encloses Equipment / Piping Areas Cell Flr. Level to Roof 14,580 SF $65.00 $947,700(Consider Clear Lexan Currugated Polycarbonate Panel System with View Windows Interspersed?)

15% of Wall at Basement 1,944 SF $80.00 $155,520INTERIOR CURTAIN WALL & DOORS 5,222 SF $60.00 $313,335

ROOF STRUCTURE, INSULATION & ROOFING + FLASHINGS & SEALANTSMetal Deck + Insulation + Roofing - Roof Level 26,107 SF $16.00 $417,712Alow for Roof Edge / Top of Perim Wall Coping / Detailing + Rainwater Leaders 884 LF $50.00 $44,200Allow for Repair / Adaptation of (E) Steel Structural Post & Beam System 26,107 SF $3.00 $78,321

USABLE FLOOR RECONSTRUCTIONMetal Deck + Walking Slab - Operating Floor Level 26,107 SF $13.00 $339,391Allow for Repair / Adaptation of (E) Steel Structural Post & Beam System 26,107 SF $2.00 $52,214Metal Deck + Concrete Walking Slab - Pipe Gallery Level 26,107 SF $13.00 $339,391Allow for Repair / Adaptation of (E) Steel Structural Post & Beam System 26,107 SF $2.00 $52,214

Allow for Elevated Slab Repair 32,967 SF $1.00 $32,967Allow for Basement Slab-on-Grade Repair 32,967 SF $1.00 $32,967Allow for Special Roof Drains RE: Changes to Roof System 26,107 SF $0.50 $13,054

Subtotal Labor & Materials Combined: $2,999,096 Labor Premium:Basic Labor Portion: 80% $2,399,277 Averaged Seasonal Efficiency Factor (Avg. 5 200% $4,798,553 $1,799,457

By Contractor #2: Completion of All Radioactive-Site Operations (Two Upper Decks Replaced; New Glazed Enclosure Walls to Contain Formerly Radioactive Areas) $4,798,553

Allow for Cleaning (E) Surfaces -- Assume No Further Finishes Unless Conveted into Enclosed Visitor Spaces

Labor Premium RE: Radioactive Jobsite Safety / Protective Requirements & Procedures - All OperationsSCH

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100101102103104105106107108109110111112113114115116117

Non-Radioactive Site Operations: "Normal" Construction Scope (Contractor #2):

Completion of Structural Retrofit Scope for Existing Bldg. K-25 Elements to be Retained

STRUCTURAL AUGMENTATION TO EXISTING K-25 BLDG. PORTION TO REMAIN

Add Steel Diagonal Rod Bracing at the Pipe Gallery Level 26,107 SF $5.00 $130,535Ht L

Add Rod or Double-Angle Bracing from Cell Flr. Level to Roof, East Wall + at (E) Expansion Joints 45.0 387.0 17,415 SF $2.00 $34,830

Added CIP Concrete Shearwalls at Basement Level 60.0 CY $810.00 1,620 SF $30.00 $48,6005" Shotcrete, Reinforced & Doweled into (E) CMU, Inside Face All Upper Levels 313.9 CY $777.60 20,340 CSF $12.00 $244,0805" Shotcrete, Reinforced & Doweled into (E) CMU Infill, Inside Face Basement 100.0 CY $777.60 6,480 CSF $12.00 $77,760

Allow for Structural Detailing & Strengthening to Address Faulty Corbel Condition, Basement Level 32,967 SF $5.00 $164,835

Allow for Upgrading All (E) Steel Framed Structure Connections, All Upper Levels 26,107 SF $8.00 $208,856

Remove Temporary Bracing Installed by Contractor #1 1 LS $50,000.00 $50,000

Completion of Structural Retrofit Scope for Existing Bldg. K-25 Elements to be Retained $959,496

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118119

120121122123124125126127128129130131

132133

134135

136137138139140141142143

Balance of Building Enclosure / Weatherproof Integrity / Exterior Assemblies Scope

ADDRESS EXTERIOR REMAINING EXISTING K-25 BUILDING ASSEMBLIES CSF = "Contact Sq. Ft."

Repair / Replace Transite Panel Cladding SystemClean & Seal All Panels In-Place 19,440 CSF $5.00 $97,200Replace 5% 972 CSF $25.00 $24,300

W Ht.3'6" 6'0" 48 Sets $900.00 $43,200

Allow for Repairs to Openings (Averaged) 48 Sets $200.00 $9,600

Assume Louvered Closure Panels Added at Level Change Between Alley and Cell Floors 333 LF $90.00 $29,970

Add Slab Surface Prep. / Fill for Slope to Drain & Non-Skid Elastomeric Coating at Exterior Walkway Conditions Created on (E) Alley Floor Level 6,860 SF $20.00 $137,200

RAILINGS AT EXTERIOR PLATFORMS CREATED ON EXISTING ELEVATED CONCRETE SLABS 452 LF $120.00 $54,240

Balance of Building Enclosure / Weatherproof Integrity / Exterior Assemblies Scope $395,710

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New Painted Wood Sash & Frame Windows at Observation Floor Level





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144145

146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185

Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems

VERTICAL TRANSPORTATION

ELEVATORING TO ROOF LEVEL -- FREESTANDING TOWER -- Assume Enclosed ShaftFreestanding Elevator Shaft Structure / Enclosure, Complete 81 4 324 324 SF $200.00 $64,800Assume 3-Stop Elevator: Basement/ Cell Floor/ Operating Floor 1 LS $105,000.00 $105,000Allow for Tie-In to (E) Building Structure + Complying w/ Accessibility Stds. 1 LS $15,000.00 $15,000

(Scheme 3 Only: Stairs Wrapped Around Elevator / Viewing Tower) To Roof level 120 Risers + Landings N / A

STAIR TOWERS L WOne Stair Tower, Complete: 5 Levels including Doors / Fr/ Hdwe 21 9 945 SF $125.00 $118,125Painted Steel Stairs, Landings & Railings 5 Flts $9,000.00 $45,000Allow for BASIC Finishes 945 SF $15.00 $14,175Allow for Tie-In to (E) Building Structure + Complying w/ Accessibility Stds. 2 Ea $10,000.00 $20,000

$197,300 2 Ea $197,300.00 $394,600

MECHANICAL SYSTEMS(N) (E)

Fire Protection Systems -- Line Item / S.F. Driven 2,714 118,148 SF 120,862 SF $5.00 $604,310

(N) (E)Plumbing Systems -- Line Item & Fixture Count / S.F. Driven 9 5 Fixtures 14 Fixt. $5,000.00 $70,000

H.V.A.C. SystemsFULL-SCOPE H.V.A.C. TO NEW VISITOR CENTER BUILDING - CELL FLOOR AREA 500 SF $15.00 $7,500VENTILATION-ONLY ENCLOSED AREAS -- BASEMENT, CELL & OPERATING FLOOR LEVELS 82,986 SF $4.00 $331,944FULL-SCOPE H.V.A.C. TO ENCLOSED GALLERY AREAS - CELL FLOOR 8,945 SF $13.00 $116,285

ELECTRICAL / DATA / COMMUNICATIONS SYSTEMS

ELECTRICAL - COMPREHENSIVE ALLOWANCE FOR COMPLETE NEW SERVICE, POWER & LIGHTING 120,862 SF $12.00 $1,450,344Fire Alarm, Security System 120,862 SF $1.50 $181,293

Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems $3,341,076

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186187

188189190191192193194195196197198199200201202203204205206207

Interior Architectural

EXISTING K-25 BUILDING INTERIOR

General Allowances for Interior Architectural Finishes by Area Type:

Interior Conditioned Gallery Space 8,945 SF $35.00 $313,075Interior Equipment / Display Areas (Minimal Finishes) 82,986 SF $15.00 $1,244,790

Paint Metal Deck Underside All Applicable Levels 78,321 SF $1.50 $117,482

NEW BUILDINGS / STRUCTURES

Allow for Visitor Center Bldg. Interior Architectural Buildout, Finishes, Specialties 500 SF $75.00 $37,500

Interior Architectural $1,712,847SCH

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208209

210

211212

213214215216217218219220221222223

224225226227228229230

231232233234235236237238239240241242243244

Base Bldg. Provisions for Museum Displays, Murals, Signage, Lighting & Sound

NOTE: EXHIBITRY COSTS AS-SUCH CATEGORICALLY EXCLUDED FROM THIS BUDGET

STRUCTURAL SUPPORT ALLOWANCEAllowance for Exhibitry Support / Anchoring Systems in Existing K-25 Bldg. to Remain 118,148 SF $2.00 $236,296

Allowance for Exhibitry Support / Anchoring Systems in New Covered Open-Air Display Structure (Schemes 3 & 4 Only:) 0 SF $0.00 $0

MECHANICAL / ELECTRICAL SUPPORT ALLOWANCESGeneral Allowance for "Base Building" Provisions -- Exhibitry-Related Plumbing / Mechanical & Electrical 118,148 SF $5.00 $590,740

Base Bldg. Provisions for Museum Displays, Murals, Signage, Lighting & Sound $827,036

N /A THIS SCHEME 0 SF $0.00 $0

Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only) $0

Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only)8

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245246

247248249250251252253254255256257258259260261262263264

265266267268269270271272273274275276277278279280281282283284285286287288289290291292293

Building Shell: Structure & Roofing, Exterior FinishesFoundations & Slab 500 GSF $30.00 $15,000Superstructure -- Roof & Enclosure Walls 500 GSF $125.00 $62,500Doors & Windows 500 GSF $10.00 $5,000Exterior Finishes & Trim, Signage 500 GSF $10.00 $5,000

500 GSF $175.00Interior Architectural Finishes & Specialties See Section 6 AboveFire Protection, Plumbing & Mechanical Systems See Section 5 AboveElectrical Systems See Section 5 Above

Allocation for New 500-sq.ft. Visitors' Center Bldg. $87,500

Site UtilitiesEXCLUDE -- Scope Limited to 5'0" Stub-Outs at Bldg. Perimeters 1 LS $0.00 $0

Site Improvements

Museum Parking Lot: Assume A.C. Section Engineered Per Eventual Geotech. ReportTOTAL PAVED ACCESS LANE AND PARKING AREA / FULLY-DEVELOPED 11,225 SF $8.00 $89,800

Onsite Museum Access Walkways 8,000 SF $10.00 $80,000

Address (E) Earth Berm / Ramp Condition -- General Allowance (Scope Not Determined at This Time) 1 LS $10,000.00 $10,000

Onsite Museum Landscaping Improvements Allow for Museum Landscaped Site Areas 10,000 SF $15.00 $150,000

Fencing & GatesMuseum Site Perimeter Fencing & Gates (Portion of Museum Site at K-25 Perim.) 150 LF $120.00 $18,000Protective Fencing at Transite-to-Grade Conditions 50 LF $90.00 $4,500

Allow for Site Lighting & Signage 29,225 SF $3.00 $87,675

Exclude Offsite Scope Exclude

Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes) $439,975

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10 Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes)

9 Allocation for New 500-sq.ft. Visitors' Center Bldg.





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Deduct Portion of Mass-Demolition Scope (39,483) GSF $9.00 ($355,347)

A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope ($355,347)




Temporary Shoring & Bracing at "Cut-Off" Line -- All Levels 725 LF $15.00 $10,875Safety Provisions for Existing Portion of K-25 to Remain 27,054 GSF $0.25 $6,764

SURGICAL DEMOLITION TO PRESEVED K-25 BLDG. ELEMENT

Allowance for Premium to Selectively Remove Uncontaminated Piping, etc. & Store for Reinstallation + Reinstall 27,054 SF $2.00 $54,108

Demolish & Remove Precast Concrete Panel Operating Floor Level Walking Surface 6,399 SF $2.00 $12,798Demolish & Remove Gypsum Cast Roof Surface 6,399 SF $4.00 $25,596

Subtotal Labor & Materials Combined: $240,690 Labor Premium:Basic Labor Portion: 90% $216,621 Averaged Seasonal Efficiency Factor (Avg. 5 200% $433,242 $192,552

B. NET ADDS TO CONTRACT: Contractor #1 to Perform Bldg. Prep. & Bracing / Surgical Demolition & Removals $433,242SCH

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CLEAN EXISTING SURFACES Assumes Eventual Finishes to Existing Plant to be Minimal)Basement + Cell Floors 14,256 SF $1.50 $21,384Perim. Walls to Remain 6,075 SF $1.00 $6,075

Underside of Structure Above 14,256 SF $0.50 $7,128

EXTERIOR ENCLOSURE ASSEMBLIES (Complete Installations Including Sealants & Flashings)Exterior Perimeter Curtain Wall - Encloses Equipment / Piping Areas Cell Flr. Level to Roof 4,556 SF $65.00 $296,156(Consider Clear Lexan Currugated Polycarbonate Panel System with View Windows Interspersed?)

15% of Wall at Basement 653 SF $80.00 $52,200INTERIOR CURTAIN WALL & DOORS 1,266 SF $60.00 $75,960


USABLE FLOOR RECONSTRUCTIONMetal Deck + Walking Slab - Operating Floor Level 6,399 SF $13.00 $83,187Allow for Repair / Adaptation of (E) Steel Structural Post & Beam System 6,399 SF $2.00 $12,798Metal Deck + Concrete Walking Slab - Pipe Gallery Level 6,399 SF $13.00 $83,187Allow for Repair / Adaptation of (E) Steel Structural Post & Beam System 6,399 SF $2.00 $12,798

Allow for Elevated Slab Repair 7,128 $1.00 $7,128Allow for Basement Slab-on-Grade Repair 7,128 SF $1.00 $7,128Allow for Special Roof Drains RE: Changes to Roof System 6,399 SF $0.50 $3,200

Subtotal Labor & Materials Combined: $798,011 Labor Premium:Basic Labor Portion: 80% $638,409 Averaged Seasonal Efficiency Factor (Avg. 5 200% $1,276,817 $478,806

By Contractor #2: Completion of All Radioactive-Site Operations (Two Upper Decks Replaced; New Glazed Enclosure Walls to Contain Formerly Radioactive Areas) $1,276,817



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Add Support for External Walkway (Steel Columns / Footings) 128 SF $300.00 $38,400

Add Steel Diagonal Rod Bracing at the Pipe Gallery Level 6,399 SF $5.00 $31,995Ht L

Add Rod or Double-Angle Bracing from Cell Flr. Level to Roof, East Wall + at (E) Expansion Joints 45.0 171.0 7,695 SF $2.00 $15,390

Added CIP Concrete Shearwalls at Basement Level 18.8 CY $810.00 506 SF $30.00 $15,1885" Shotcrete, Reinforced & Doweled into (E) CMU, Inside Face All Upper Levels 107.6 CY $777.60 6,975 CSF $12.00 $83,7005" Shotcrete, Reinforced & Doweled into (E) CMU Infill, Inside Face Basement 31.3 CY $777.60 2,025 CSF $12.00 $24,300

Allow for Structural Detailing & Strengthening to Address Faulty Corbel Condition, Basement Level 7,128 SF $6.00 $42,768




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Nor

th E

nd, O

nly,

of K

-303

-10

Uni

t fro

m th

e N

orth

Bld

g., C

onta

inin

g 2

Cel

ls

3






12

34567





118119

120121122123124125126127128129130131

132133

134135

136137138139140141142143



Repair / Replace Transite Panel Cladding SystemClean & Seal All Panels In-Place 6,075 CSF $5.00 $30,375Replace 5% 304 CSF $25.00 $7,594

W Ht.3'6" 6'0" 19 Sets $900.00 $17,100


Assume Louvered Closure Panels Added at Level Change Between Alley and Cell Floors 72 LF $90.00 $6,480

Add Slab Surface Prep. / Fill for Slope to Drain & Non-Skid Elastomeric Coating at Exterior Walkway Conditions Created on (E) Alley Floor Level 729 SF $20.00 $14,580

Add Steel Str. Walkway Approx. 6'0 Wide at South Edge of Cell Floor, This Scheme Only 0 LF $350.00 $0

RAILINGS AT EXTERIOR PLATFORMS CREATED ON EXISTING ELEVATED CONCRETE SLABS 153 LF $120.00 $18,360



4

SCH

EME

2: S

ave

the

Nor

th E

nd, O

nly,

of K

-303

-10

Uni

t fro

m th

e N

orth

Bld

g., C

onta

inin

g 2

Cel

ls






12

34567





144145

146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185



ELEVATORING TO ROOF LEVEL -- FREESTANDING TOWER -- Assume Enclosed ShaftFreestanding Elevator Shaft Structure / Enclosure, Complete 81 4 324 324 SF $200.00 $64,800Assume 3-Stop Elevator: Basement/ Cell Floor/ Operating Floor 45-Foot Run to Operating Floor Level 1 LS $105,000.00 $105,000Allow for Tie-In to (E) Building Structure + Complying w/ Accessibility Stds. 1 LS $15,000.00 $15,000



$197,300 2 Ea $197,300.00 $394,600


Fire Protection Systems -- Line Item / S.F. Driven 2,417 27,054 SF 29,471 SF $5.00 $147,355


H.V.A.C. SystemsFULL-SCOPE H.V.A.C. TO NEW VISITOR CENTER BUILDING - CELL FLOOR AREA 500 SF $15.00 $7,500VENTILATION-ONLY ENCLOSED AREAS -- BASEMENT, CELL & OPERATING FLOOR LEVELS 23,775 SF $4.00 $95,100FULL-SCOPE H.V.A.C. TO ENCLOSED GALLERY AREAS - CELL FLOOR 2,360 SF $13.00 $30,680


ELECTRICAL - COMPREHENSIVE ALLOWANCE FOR COMPLETE NEW SERVICE, POWER & LIGHTING 29,471 SF $12.00 $353,652Fire Alarm, Security System 29,471 SF $1.50 $44,207

Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems $1,327,894SCH

EME

2: S

ave

the

Nor

th E

nd, O

nly,

of K

-303

-10

Uni

t fro

m th

e N

orth

Bld

g., C

onta

inin

g 2

Cel

ls 5






12

34567





186187

188189190191192193194195196197198199200201202203204205206207




Interior Conditioned Gallery Space 2,360 SF $40.00 $94,400Interior Equipment / Display Areas (Minimal Finishes) 23,775 SF $15.00 $356,625




Interior Architectural $517,321

6

SCH

EME

2: S

ave

the

Nor

th E

nd, O

nly,

of K

-303

-10

Uni

t fro

m th

e N

orth

Bld

g., C

onta

inin

g 2

Cel

ls






12

34567





208209

210

211212

213214215216217218219220221222223

224225226227228229230

231232233234235236237238239240241242243244



STRUCTURAL SUPPORT ALLOWANCEAllowance for Exhibitry Support / Anchoring Systems in Existing K-25 Bldg. to Remain 27,054 SF $2.00 $54,108

Allowance for Exhibitry Support / Anchoring Systems in New Covered Open-Air Display Structure (Schemes 3 & 4 Only:) 0 SF $0.00 $0



N /A THIS SCHEME 0 SF $0.00 $0

Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only) $0

SCH

EME

2: S

ave

the

Nor

th E

nd, O

nly,

of K

-303

-10

Uni

t fro

m th

e N

orth

Bld

g., C

onta

inin

g 2

Cel

ls

7

Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only)8






12

34567





245246

247248249250251252253254255256257258259260261262263264

265266267268269270271272273274275276277278279280281282283284285286287288289290291292293

Building Shell: Structure & Roofing, Exterior FinishesFoundations & Slab 500 GSF $30.00 $15,000Superstructure -- Roof & Enclosure Walls 500 GSF $125.00 $62,500Doors & Windows 500 GSF $10.00 $5,000Exterior Finishes & Trim, Signage 500 GSF $10.00 $5,000




Site Improvements





Fencing & GatesMuseum Site Perimeter Fencing & Gates (Portion of Museum Site at K-25 Perim.) 150 LF $120.00 $18,000Protective Fencing at Transite-to-Grade Conditions 50 LF $90.00 $4,500





10 Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes)

SCH

EME

2: S

ave

the

Nor

th E

nd, O

nly,

of K

-303

-10

Uni

t fro

m th

e N

orth

Bld

g., C

onta

inin

g 2

Cel

ls






12

3456789

1011

1213141516171819202122232425262728

29303132333435363738394041424344454647

AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AXAY





Deduct Portion of Mass-Demolition Scope NO CHANGE TO BASE CONTRACT FOR MASS DEMOLITION 0 GSF $0.00 $0

A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope $0


CREATE "AIR GAP" BETWEEN THE K-25 ELEMENT TO BE PRESERVED and MASS DEMOLITION PER BASE CONTRACTStrip Off & Remove Roofing at Zone to be Surgicaly Removed to Form "Air Gap" (at 110%: Lapped onto Portion to Remain)

Layout, Sawcutting & Removal of Slab Sections Plus All Support Structure including FoundationsTemporary Shoring & Bracing at "Cut-Off" Line -- All LevelsSafety Provisions for Existing Portion of K-25 to Remain


Subtotal Labor & Materials Combined: $0 Labor Premium:Basic Labor Portion: 90% $0 Averaged Seasonal Efficiency Factor (Avg. 5 200% $0 $0

$0


SCH

EME

3: A

ll N

ew: 1

0,00

0 S.

F. C

over

ed O

pen-

Air

Dis

play

Str

uctu

re +

Vie

win

g To

wer

+ S

mal

l Vi

sito

r Cen

ter (

100%

of O

rig. B

ldg.

K-2

5 D

emol

ishe

d)

N / A



1 Changes to Contractor #1's Original Mass-Demolition Scope & Costs






12

34567






4849

5051525354555657585960616263646566676869707172737475767778798081828384858687


Subtotal Labor & Materials Combined: $0 Labor Premium:Basic Labor Portion: 80% $0 Averaged Seasonal Efficiency Factor (Avg. 5 200% $0 $0

By Contractor #2: Completion of All Radioactive-Site Operations (Two Upper Decks Replaced; New Glazed Enclosure Walls to Contain Formerly Radioactive Areas) $0SCH

EME

3: A

ll N

ew: 1

0,00

0 S.

F. C

over

ed O

pen-

Air

Dis

play

Str

uctu

re +

Vie

win

g To

wer

+

Smal

l Vis

itor C

ente

r (10

0% o

f Orig

. Bld

g. K

-25

Dem

olis

hed)

2







12

34567






8889

9091

9293949596979899

100101102103104105106107108109110111112113114115116117




Completion of Structural Retrofit Scope for Existing Bldg. K-25 Elements to be Retained $0SCH

EME

3: A

ll N

ew: 1

0,00

0 S.

F. C

over

ed O

pen-

Air

Dis

play

Str

uctu

re

+ Vi

ewin

g To

wer

+ S

mal

l Vis

itor C

ente

r (10

0% o

f Orig

. Bld

g. K

-25

Dem

olis

hed)

3

NOT APPLICABLE, THIS SCHEME






12

34567






118119

120121122123124125126127128129130131

132133

134135

136137138139140141142143


ADDRESS EXTERIOR REMAINING EXISTING K-25 BUILDING ASSEMBLIES

Balance of Building Enclosure / Weatherproof Integrity / Exterior Assemblies Scope $0

SCH

EME

3: A

ll N

ew: 1

0,00

0 S.

F. C

over

ed O

pen-

Air

Dis

play

St

ruct

ure

+ Vi

ewin

g To

wer

+ S

mal

l Vis

itor C

ente

r (10

0% o

f Orig

. B

ldg.

K-2

5 D

emol

ishe

d)

4

NOT APPLICABLE, THIS SCHEME






12

34567






144145

146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185



ELEVATORING TO ROOF LEVEL -- FREESTANDING TOWER -- Assume Enclosed ShaftFreestanding Elevator Shaft Structure / Enclosure, Complete 250 4 1,000 1,000 SF $250.00 $250,000Assume 2-Stop Elevator: Basement to Operating Floor Levels Only 45-Foot Run to Operating Floor Level 1 LS $90,000.00 $90,000Allow for Tie-In to (E) Building Structure + Complying w/ Accessibility Stds. 1 LS $15,000.00 $15,000

(Scheme 3 Only: Stairs Wrapped Around Elevator / Viewing Tower) To Roof level 120 Risers + Landings 1 LS $75,000.00 $75,000


$197,300


Fire Protection Systems -- Line Item / S.F. Driven 11,750 N / A SF 11,750 SF $5.00 $58,750


H.V.A.C. SystemsFULL-SCOPE H.V.A.C. TO NEW VISITOR CENTER BUILDING - CELL FLOOR AREA 500 SF $15.00 $7,500VENTILATION-ONLY ENCLOSED AREAS -- BASEMENT, CELL & OPERATING FLOOR LEVELS 0 SF $4.00 $0FULL-SCOPE H.V.A.C. TO ENCLOSED GALLERY AREAS - CELL FLOOR 0 SF $13.00 $0



Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems $699,875SCH

EME

3: A

ll N

ew: 1

0,00

0 S.

F. C

over

ed O

pen-

Air

Dis

play

Str

uctu

re +

Vie

win

g To

wer

+ S

mal

l Vi

sito

r Cen

ter (

100%

of O

rig. B

ldg.

K-2

5 D

emol

ishe

d)

N / A

5






12

34567






186187

188189190191192193194195196197198199200201202203204205206207






Interior Architectural $37,500SCH

EME

3: A

ll N

ew: 1

0,00

0 S.

F. C

over

ed O

pen-

Air

Dis

play

Str

uctu

re +

Vie

win

g To

wer

+ S

mal

l Vi

sito

r Cen

ter (

100%

of O

rig. B

ldg.

K-2

5

N / A

6






12

34567






208209

210

211212

213214215216217218219220221222223

224225226227228229230

231232233234235236237238239240241242243244



STRUCTURAL SUPPORT ALLOWANCEAllowance for Exhibitry Support / Anchoring Systems in Existing K-25 Bldg. to Remain 0 SF $0.00 $0

Allowance for Exhibitry Support / Anchoring Systems in New Covered Open-Air Display Structure (Schemes 3 & 4 Only:) 10,000 SF $2.00 $20,000



Building Structure & RoofingFoundations & Slab Combined with Visitor Center 9,500 GSF $25.00 $237,500Superstructure -- Roof Only / No Enclosure Walls 10,000 GSF $40.00 $400,000Add Premium for Articulated Roof & Clerestory Windows for Daylighting 10,000 GSF $15.00 $150,000

$80.00Mechanical & Electrical Systems See Section 3

Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only) $787,500SCH

EME

3: A

ll N

ew: 1

0,00

0 S.

F. C

over

ed O

pen-

Air

Dis

play

Str

uctu

re +

Vie

win

g To

wer

+

Smal

l Vis

itor C

ente

r (10

0% o

f Orig

. Bld

g. K

-25

Dem

olis

hed)

8

7

Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only)






12

34567






245246

247248249250251252253254255256257258259260261262263264

265266267268269270271272273274275276277278279280281282283284285286287288289290291292293

Building Shell: Structure & Roofing, Exterior FinishesFoundations & Slab 500 GSF $30.00 $15,000Superstructure -- Roof & Enclosure Walls Combined with Covered Open-Air Structure (Roof Provided) 500 GSF $100.00 $50,000Doors & Windows 500 GSF $10.00 $5,000Exterior Finishes & Trim, Signage 500 GSF $10.00 $5,000




Site Improvements





Fencing & GatesMuseum Site Perimeter Fencing & Gates (Perimeter of All-New Museum Site) 400 LF $120.00 $48,000Protective Fencing at Transite-to-Grade Conditions 0 LF $90.00 $0




Allocation for New 500-sq.ft. Visitors' Center Bldg.9

SCH

EME

3: A

ll N

ew: 1

0,00

0 S.

F. C

over

ed O

pen-

Air

Dis

play

Str

uctu

re +

Vie

win

g To

wer

+ S

mal

l Vis

itor C

ente

r (1

00%

of O

rig. B

ldg.

K-2

5 D

emol

ishe

d)

Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes)10






12

3456789

1011

1213141516171819202122232425262728

29303132333435363738394041424344454647

AZ BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BOBP





Deduct Portion of Mass-Demolition Scope (5,905) GSF $9.00 ($53,145)

A. NET CREDIT TO CONTRACT -- Net Changes to Contractor #1's Orig. Mass-Demolition Scope ($53,145)




Temporary Shoring & Bracing at "Cut-Off" Line -- All Levels 538 LF $20.00 $10,750Safety Provisions for Existing Portion of K-25 to Remain 832 GSF $0.25 $208


Allowance for Premium to Selectively Remove Uncontaminated Piping, etc. & Store for Reinstallation + Reinstall 832 SF $2.00 $1,664

Demolish & Remove Precast Concrete Panel Operating Floor Level Walking Surface 416 SF $2.00 $832Demolish & Remove Gypsum Cast Roof Surface 416 SF $4.00 $1,664


$146,108



Supporting CalculationsDescriptions

1

SCH

EME

4 (M

inim

al):

Save

Por

tion

of N

W F

ull-H

eigh

t Ext

. Wal

l ON

LY +

Flo

or U

nder

1 C

onve

rter

+

Elev

ator

Tow

er +

Sm

all V

isito

r Cen

ter &

7,0

00 S

F C

over

ed O

pen-

Air

Dis

play

Str

uctu

re

Changes to Contractor #1's Original Mass-Demolition Scope & Costs







12

34567






4849

5051525354555657585960616263646566676869707172737475767778798081828384858687


CLEAN EXISTING SURFACES Assumes Eventual Finishes to Existing Plant to be Minimal)Basement + Cell Floors 832 SF $1.50 $1,248Perim. Walls to Remain 4,388 SF $1.00 $4,388

Underside of Structure Above 832 SF $0.50 $416

EXTERIOR ENCLOSURE ASSEMBLIES (Complete Installations Including Sealants & Flashings) NOT ENCLOSED / OPEN STRUCTURE!Exterior Perimeter Curtain Wall - Encloses Equipment / Piping Areas Cell Flr. Level to Roof 0 SF $80.00 $0

15% of Wall at Basement 0 SF $80.00 $0INTERIOR CURTAIN WALL & DOORS 0 SF $60.00 $0


USABLE FLOOR RECONSTRUCTIONMetal Deck + Walking Slab - Operating Floor Level N / A 0 SF $0Allow for Repair / Adaptation of (E) Steel Structural Post & Beam System 2,214 SF $4.00 $8,856Metal Deck + Concrete Walking Slab - Pipe Gallery Level N / A 0 SF $0Allow for Repair / Adaptation of (E) Steel Structural Post & Beam System 2,214 SF $4.00 $8,856

Allow for Elevated Slab Repair Cell Level Only 416 SF $2.00 $832Allow for Basement Slab-on-Grade Repair 416 SF $2.00 $832Allow for Special Roof Drains RE: Changes to Roof System 2,214 SF $2.00 $4,428


By Contractor #2: Completion of All Radioactive-Site Operations (Two Upper Decks Replaced; New Glazed Enclosure Walls to Contain Formerly Radioactive Areas) $153,426


2

SCH

EME

4 (M

inim

al):

Save

Por

tion

of N

W F

ull-H

eigh

t Ext

. Wal

l ON

LY +

Flo

or U

nder

1

Con

vert

er +

Ele

vato

r Tow

er +

Sm

all V

isito

r Cen

ter &

7,0

00 S

F C

over

ed O

pen-

Air

Dis

play

St

ruct

ure


See Observation Deck Section

See Observation Deck Section






12

34567






8889

9091

9293949596979899

100101102103104105106107108109110111112113114115116117




Add Bracing in Horinzontal Planes -- Pipe Gallery, Operting Flr. & Roof Planes 6,642 SF $3.00 $19,926

Ht LAdd Bracing in Vertical Planes from Cell Flr. Level to Roof, 45.0 315.0 14,175 SF $3.00 $42,525

Added CIP Concrete Shearwalls at Basement Level 13.5 CY $810.00 366 SF $30.00 $10,9695" Shotcrete, Reinforced & Doweled into (E) CMU, Inside Face All Upper Levels 81.6 CY $777.60 5,288 CSF $12.00 $63,4505" Shotcrete, Reinforced & Doweled into (E) CMU Infill, Inside Face Basement 22.6 CY $777.60 1,463 CSF $12.00 $17,550

Allow for Structural Detailing & Strengthening to Address Faulty Corbel Condition, Basement Level 416 SF $10.00 $4,160




SCH

EME

4 (M

inim

al):

Save

Por

tion

of N

W F

ull-H

eigh

t Ext

. Wal

l ON

LY

+ Fl

oor U

nder

1 C

onve

rter

+ E

leva

tor T

ower

+ S

mal

l Vis

itor C

ente

r &

7,00

0 SF

Cov

ered

Ope

n-A

ir D

ispl

ay S

truc

ture

3






12

34567






118119

120121122123124125126127128129130131

132133

134135

136137138139140141142143



Repair / Replace Transite Panel Cladding SystemClean & Seal All Panels 4,388 CSF $5.00 $21,938Replace 5% 219 CSF $25.00 $5,484

W Ht.3'6" 6'0" 12 Sets $900.00 $10,800


RAILINGS AT EXTERIOR PLATFORMS CREATED ON EXISTING ELEVATED CONCRETE SLABS 56 SF $120.00 $6,720



SCH

EME

4 (M

inim

al):

Save

Por

tion

of N

W F

ull-H

eigh

t Ext

. Wal

l O

NLY

+ F

loor

Und

er 1

Con

vert

er +

Ele

vato

r Tow

er +

Sm

all V

isito

r C

ente

r & 7

,000

SF

Cov

ered

Ope

n-A

ir D

ispl

ay S

truc

ture

4






12

34567






144145

146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185



ELEVATORING TO ROOF LEVEL -- FREESTANDING TOWER -- Assume Enclosed ShaftFreestanding Elevator Shaft Structure / Enclosure, Complete 125 4 500 500 SF $250.00 $125,000Assume 2-Stop Elevator: Basement to Operating Floor Levels Only 45-Foot Run to Operating Floor Level 1 LS $90,000.00 $90,000Allow for Tie-In to (E) Building Structure + Complying w/ Accessibility Stds. 1 LS $5,000.00 $5,000



$197,300 1 Ea $197,300.00 $197,300

MECHANICAL SYSTEMS(N) W L Levels (E)

Fire Protection Systems -- Line Item / S.F. Driven 10,191 36 61.5 4 8,856 SF 19,047 SF $5.00 $95,235


H.V.A.C. SystemsFULL-SCOPE H.V.A.C. TO NEW VISITOR CENTER BUILDING - CELL FLOOR AREA 500 SF $15.00 $7,500VENTILATION-ONLY ENCLOSED AREAS -- BASEMENT, CELL & OPERATING FLOOR LEVELS 0 SF $4.00 $0FULL-SCOPE H.V.A.C. TO ENCLOSED GALLERY AREAS - CELL FLOOR 0 SF $13.00 $0



Building Systems (New Vertical Transportation, Fire Sprinkler, HVAC & Electrical Systems $822,170SCH

EME

4 (M

inim

al):

Save

Por

tion

of N

W F

ull-H

eigh

t Ext

. Wal

l ON

LY +

Flo

or U

nder

1 C

onve

rter

+

Elev

ator

Tow

er +

Sm

all V

isito

r Cen

ter &

7,0

00 S

F C

over

ed O

pen-

Air

Dis

play

Str

uctu

re

5






12

34567






186187

188189190191192193194195196197198199200201202203204205206207






Interior Architectural $40,157SCH

EME

4 (M

inim

al):

Save

Por

tion

of N

W F

ull-

Hei

ght E

xt. W

all O

NLY

+ F

loor

Und

er 1

C

onve

rter

+ E

leva

tor T

ower

+ S

mal

l Vis

itor 6






12

34567






208209

210

211212

213214215216217218219220221222223

224225226227228229230

231232233234235236237238239240241242243244



STRUCTURAL SUPPORT ALLOWANCEAllowance for Exhibitry Support / Anchoring Systems in Existing K-25 Bldg. to Remain (SOG + Platforms) 3,575 SF $2.00 $7,150

Allowance for Exhibitry Support / Anchoring Systems in New Covered Open-Air Display Structure (Schemes 3 & 4 Only:) 7,000 SF $2.00 $14,000

MECHANICAL / ELECTRICAL SUPPORT ALLOWANCESGeneral Allowance for "Base Building" Provisions -- Exhibitry-Related Plumbing / Mechanical & Electrical (Limited) 3,575 SF $2.00 $7,150

Scheme 4 Mural to Inside face of Original Wall Sections

5,288 CSF $25.00 $132,188


Building Structure & RoofingFoundations & Slab Combined with Visitor Center 6,500 GSF $25.00 $162,500Superstructure -- Roof Only / No Enclosure Walls 7,000 GSF $40.00 $280,000Add Premium for Articulated Roof & Clerestory Windows for Daylighting 7,000 GSF $15.00 $105,000

$80.00Mechanical & Electrical Systems See Section 3

Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only) $547,500SCH

EME

4 (M

inim

al):

Save

Por

tion

of N

W F

ull-H

eigh

t Ext

. Wal

l ON

LY +

Flo

or U

nder

1

Con

vert

er +

Ele

vato

r Tow

er +

Sm

all V

isito

r Cen

ter &

7,0

00 S

F C

over

ed O

pen-

Air

Dis

play

St

ruct

ure

8 Allocation for New Covered / Open-Air Display Structure (Schemes 3 & 4, Only)

General Allowance for "Base Building" Provision: Recreate Interior Appearance of K-25 at All Levels Via Commissioned Photorealist Mural; includes Surface Prep.

7






12

34567






245246

247248249250251252253254255256257258259260261262263264

265266267268269270271272273274275276277278279280281282283284285286287288289290291292293

Building Shell: Structure & Roofing, Exterior FinishesFoundations & Slab 500 GSF $30.00 $15,000Superstructure -- Roof & Enclosure Walls Combined with Covered Open-Air Structure (Roof Provided) 500 GSF $100.00 $50,000Doors & Windows 500 GSF $10.00 $5,000Exterior Finishes & Trim, Signage 500 GSF $10.00 $5,000




Site Improvements





Fencing & GatesMuseum Site Perimeter Fencing & Gates (Perimeter of Museum Site) 350 LF $120.00 $42,000Protective Fencing at Transite-to-Grade Conditions 50 LF $90.00 $4,500




10

SCH

EME

4 (M

inim

al):

Save

Por

tion

of N

W F

ull-H

eigh

t Ext

. Wal

l ON

LY +

Flo

or U

nder

1 C

onve

rter

+ E

leva

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Immediately Surrounding Museum-Usage Site Improvements (Repeating Scope / All Schemes)





STRUCTURAL EVALUATION: K-25 HISTORIC PRESERVATION ALTERNATIVESMisc. Building Statistics, Areas and Quantities

Bldg. Stats- 1 of 9

12345678910111213141516171819202122232425262728293031

A B C D E F G H I J K L M N O P Q R S

BUILDING FLOOR-TO-FLOOR HEIGHTS -- OPERATING ASSUMPTIONS

APPLIES TO SCHEMES 1-2-4

(Heights) (Elevations)

60.00 Ft.Poured Gypsum Roof Surface / Steel Structure

ROOF LEVEL 840.00 Top of Angle14.83

OPERATING FLOOR 825.17 Precast Concrete Panel Flooring / Steel Structure8.50

PIPE GALLERY FLOOR 816.67 Open-Framed / Steel w/ Catwalks, Only17.58

ROUGH CELL FLOOR 799.08 Top of Elevated Slab3.41

ALLEY FLOOR 795.67 Top of Elevated Slab (Berm Height)15.00

BASEMENT FLOOR ( and Footprint) Elevations Noted: 780.67 Top of Slab-on-Grade0.67 780.00 Reference Grade

REF.: The Kellex Corporation No. 303-10K-30-GA, Rev.3

Full Building Height Above Grade:

60.00

File No. PROJ STATS 20Dec10 $Est DgnklbEng DOE K-2512/20/2010 at 11:56 PM




Bldg. Stats- 2 of 9

3233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778


EXISTING BUILDING EXT. / PERIM. + INT. ENCLOSURE WALL DEVELOPED AREAS BY SCHEME -- OPERATING ASSUMPTIONS

APPLIES TO SCHEMES 1-2-4(Lengths) (Lengths) (Lengths) (Lengths)

N W E S

SCHEME 1(E) Transite Cladding System Upper levels 45 99 333 432 19,440North Stair Tower Upper levels 45 10 10 20 900(E) Concrete Str. w/CMU Infill Basement 15 99 333 432 6,480(N) Structural Concrete Perim. Shearwall -- Assume: 25.0% 15 83 25 108 1,620(N) INT. Curtain Wall Gallery Enclosure Cell 17.58 297 297 5,222

(N) EXT. Perim. Curtain Wall System (Abv. Bsmt. Level, to Roof) Upper levels 45 250 74 324 14,580Retrofit (N) EXT. Perim. Curtain Wall System at Basement 15.0% 15 99 333 333 99 130 1,944

99 343 343 99 LF 50,186

SCHEME 2(E) Transite Cladding System Upper levels 45 99 36 135 6,075North Stair Tower Upper levels 45 10 10 20 900(E) Concrete Str. w/CMU Infill Basement 15 99 36 135 2,025(N) Structural Concrete Perim. Shearwall -- Assume: 25.0% 15 9 25 34 506(N) INT. Curtain Wall Gallery Enclosure Cell 17.58 72 72 1,266

(N) Curtain Wall System (Abv. Bsmt. Level, to Roof) Upper levels 45 27 74 101 4,556Retrofit (N) EXT. Perim. Curtain Wall System at Basement 15.0% 15 99 46 46 99 44 653

99 46 46 99 LF 15,981

SCHEME 3 -- ALL NEW CONSTRUCTION / NO CHANGE TO CONTRACTOR #1's SCOPE

SCHEME 4(E) Transite Cladding System 45 61.5 36 98 4,388North Stair Tower 45 10 10 20 900(E) Concrete Str. w/CMU Infill Basement 15 61.5 36 98 1,463

0 0(N) Structural Concrete Perim. Shearwall -- Assume: 25.0% 15 9 15.4 24 366(N) Curtain Wall System (Abv. Bsmt. Level, to Roof) 45 27 46.1 73 3,291

61.5 46 46 61.5 LF 10,406

SF

SF

SF

10,406

Developed CSF(Heights)

15,329

(Developed Lengths)Developed

Lengths

48,242





Bldg. Stats- 3 of 9

7980818283848586878889909192939495

96979899

100101102103104105106107108

109110111112113114115116

117118119120121122123124125126127128

129130131


GROSS SQ. FT. BUILDING / STRUCTURE AREAS: Existing Systems New New New 10K SF New 7K SFK-25 Added to Visitor Viewing Covered Ext. Covered Ext.

(E) K-25 Center Tower Display Display

SCHEME 1OPERATING FLOOR 26,107PIPE GALLERY FLOOR 26,107ROUGH CELL FLOORALLEY FLOORExterior Walkway Created on Slab Over Basement at Cell Level 6,860BASEMENT FLOOR ( and Footprint) 32,967TWO STAIR TOWERS, 21' X 9' Each x 5 LEVELS 1,890ELEVATOR / SHAFT at 81 GSF x 4 LEVELS 324NEW VISITOR CENTER 500

SCHEME 1 118,148 2,214 500 0 0 0 120,862 GSF

SCHEME 2OPERATING FLOOR 6,399PIPE GALLERY FLOOR 6,399ROUGH CELL FLOORALLEY FLOORExterior Walkway Created on Slab Over Basement at Cell Level 729BASEMENT FLOOR ( and Footprint) 7,128TWO STAIR TOWERS, 21' X 9' Each x 5 LEVELS 1,512ELEVATOR / SHAFT 405NEW VISITOR CENTER BUILDING 500

SCHEME 2 27,054 1,917 500 0 0 0 29,471 GSF

SCHEME 3NO EXISTING K-25 VESTIGE, THIS SCHEME 0VIEWING TOWER / ELEVATOR / SHAFT at 250 GSF x 5 LEVELS 1,250NEW VISITOR CENTER BUILDING 500NEW COVERED EXTERIOR DISPLAY AREA 10,000

SCHEME 3 0 0 500 1,250 10,000 0 11,750 GSF

SCHEME 4 Floor Remnant: Roof?ROUGH CELL FLOOR 2,214ALLEY FLOOR SFBASEMENT FLOOR ( and Footprint) 416ONE STAIR TOWER, 21' X 9' Each x 5 LEVELS 945Add Observation Platforms at Cell & Operating Floors + Roof 1,341ELEVATOR / SHAFT at 81 GSF x 5 LEVELS 405NEW VISITOR CENTER BUILDING 500NEW COVERED EXTERIOR DISPLAY AREA 7,000

SCHEME 4 832 2,691 500 0 0 7,000 11,023 GSF

26,107

416

6,399

Combined

Combined





Bldg. Stats- 4 of 9

132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181


Contractor #1 Scope: Adjustments to Base Contract For Mass DemolitionAreas

SCHEME 1

Gross Demolition Zone Credited back from base Contract:

Preserved Building Portion / All Floor Levels 118,148 GSFAdd Roof Level 26,107 SF

144,255 GSF

"AIR GAP" DEMOLITION ZONE LF LF Corner LF W SFAssume 30 ft. Width / Clear, All levels To-Grade 333.0 99 30 462 30 13,860 13,860 GSF

NET DEDUCT TO GROSS DEMOLITION 158,115 GSF

SCHEME 2


Preserved Building Portion / All Floor Levels 27,054 GSFAdd Roof Level 6,399 SF

33,453 GSF



SCHEME 3

NO CHANGE TO CONTRACTOR #1'S SCOPE

SCHEME 4


Preserved Building Portion / All Floor Levels 1,664 GSFAdd Roof Level 416 SF

2,080 GSF







Bldg. Stats- 5 of 9

182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230


SCHEME 1 Areas

ADAPT EXISTING CONSTRUCTION:

5. BUILDING SYSTEMS

Fire Protection Systems -- Line Item / S.F. Driven

Plumbing Systems -- Line Item & Fixture Count / S.F. Driven

H.V.A.C. Systems

Open-Air: No Mechanical SystemL W SF (E) N.Stair SF SF

Full HVACCell 288.0 30 8,640 170 8,810

15.0 9 135 135

Ventilation-OnlyOperating 288.0 69 19,872 170 20,042

69.0 45 3,105 3,105Pipe GalleryCell 288.0 69 19,872 170 20,042

Basement 333.0 119 39,627 170 39,797

Electrical Systems -- Line Item / S.F. Driven

8,945

82,986





Bldg. Stats- 6 of 9

231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282


SCHEME 2 Areas

ADAPT EXISTING CONSTRUCTION:

5. BUILDING SYSTEMS



H.V.A.C. Systems

Open-Air: No Mechanical SystemL W SF (E) N.Stair SF SF

Full HVACCell 73.0 30 2,190 170 2,360

Ventilation-OnlyOperating 99.0 72 7,128 170 7,298

69.0 45 3,105 3,105Pipe Gallery

Cell 73.0 71 5,183 170 5,353

Basement 99.0 81 8,019 0 8,019


2,360

23,775





Bldg. Stats- 7 of 9

283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325


SCHEME 3 Areas

ADAPT EXISTING CONSTRUCTION: NONE

Contractor #1 Scope: Unaffected

Contractor #2 Scope: All Operations on a Non-Radioactive Site

NEW CONSTRUCTION:

5. BUILDING SYSTEMS ALL NEW / ALL LINE ITEM or SQ. FT. RATES DRIVEN



H.V.A.C. SystemsOpen-Air: No Mechanical SystemFull HVAC






Bldg. Stats- 8 of 9

326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358


SCHEME 4 Areas

ADAPT EXISTING CONSTRUCTION: NONE

5. BUILDING SYSTEMS ALL NEW / ALL LINE ITEM or SQ. FT. RATES DRIVEN



H.V.A.C. SystemsOpen-Air: No Mechanical SystemFull HVAC






Bldg. Stats- 9 of 9

359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394


NEW SITE CONSTRUCTION / REPEATING SCOPE, ALL SCHEMES:

NOTE: ALL SITE IMPROVEMENTS TO COMPLY WITH A.D.A. ACCESSIBILITY REQUIREMENTS AND STANDARDS

Museum Parking Lot: Assume A.C. Section Engineered Per Eventual Geotech. Report

Assume: 20 StallsParking (20) 5,000 SFAllow for R.V. Parking (3) 2,250 SFCirculation 2,175 SF

W LShort Access Drive 24 75 1,800 SFTOTAL PAVED ACCESS LANE AND PARKING AREA / FULLY-DEVELOPED 11,225 SF

Onsite Museum Access Walkways W LPrimary Access Walkway 8 100 800 SFAllow for K-25 Perimeter Walk 6 1,200 7,200 SF

8,000 SF

Onsite Museum Landscaping Improvements (Excludes Commemorative K-25 Original-Footprint Lawns)Allow for Museum Landscaped Site Areas 10,000 SF

Museum Site - Site-Mounted Lighting & Signage

Allow for Lighting (Landascaped + Paved Areas Total) 29,225 Site SFAllow for Signage 29,225 Site SF

Apply to Averaged Total Site Areas:

Areas

