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CMAA Sustainability WorkshopFriday, January 23, 2009
Washington, DC
The New U.S. Census Bureau Headquarters Suitland, Maryland
JAG BHARGAVA, PE, PMP, CCM, DBIAActing Deputy Director & Project Executive, GSA
ROD GARRETT, AIAAssociate Director, SOM
IRIS AMDUR, LEED APPrincipal, Greenshape
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New U.S. Census Bureau Headquarters
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INTRODUCTION
1.5 million square foot office space & 1.0 million structured parking, $400. million.
Bridging Design-Build Delivery MethodThe Team
- Bridging A/E- SOM - DBC- Skanska (GC) &HKS ( Architect of the Record) - CM- DMJM / Heery ( Jt. Venture) - LEED consultant - Greenshape
Construction & Occupancy Completed, 2007.
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OWNER’S PERSPECTIVE
GSA wanted to achieve GSA's new Standard of LEED silver or higher.
Bridging Design-Build delivery method was new untested to achieve LEED.
SOM's Concept, which achieved 34 LEED points.
GSA Concerns :- HKS's CD when completed may not get 34 LEED points- DBC's design proposal may conflict with PBS P-100
Benefits in having CM, and Bringing the CM on very early :- To oversee LEED process and to track LEED points- To perform and oversee additional commissioning ( Which achieved 1 LEED Point) until all equipment turnover
GSA saw Benefit in having DBC hire an Independent LEED consultant, Greenshape.
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GREEN IS GOOD...there is no other building complex like this in the world
Designed to be the architectural expression of sustainability.
Set in an 80-acre woodland preserve.
Two buildings have been conceptually "Cleaved" from a single mass.
Central garden, courtyards, and other sustainable landscape gardens.
Woodland-facing facades are clad in a unique, architectural sunshade.
Parking structures green screens with climbing ivy.
Scenic views brought into the workplace.
"Mainstreet" with all kinds of amenities.
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SUSTAINABILITY
A. User Comfort
Daylight + Indoor Air Quality
Underfloor Air
B. Water Conservation
Site Stormwater management
Natural filtering – Green Roofs
Potable water usage
Low flow fixtures - waterless fixtures
C. Energy Conservation
Heat Load Reduction
Exterior sun screen “wood veil”
Sustainability / Design Goals7 A. GSA
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A. User Comfort
User Comfort
GOAL
Daylight + Indoor Air Quality
SOLUTION
Underfloor Air
APPLIED TECHNOLOGY
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A. User Comfort
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A. User Comfort
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A. User Comfort - Underfloor Air Distribution
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A. User Comfort - Underfloor Air Distribution
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B. Water Conservation
Site Stormwater Management
Natural Filtering – Green Roofs
Water Conservation
Potable Water Usage
Low flow fixtures – water less fixtures
GOAL
SOLUTION
APPLIED TECHNOLOGY
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B. Water Conservation- Green Roofs
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B. Water Conservation- Green Roofs
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B. Water Conservation- Green Roofs
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Heat Load or Cooling Requirements
Reduction
Exterior sun screen “wood veil”
Energy Conservation
C. Energy Conservation
GOAL
SOLUTION
APPLIED TECHNOLOGY
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C. Energy Conservation- Sun Screen
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C. Energy Conservation- Sun Screen
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C. Energy Conservation- Sun Screen
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C. Energy Conservation- Sun Screen
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C. Energy Conservation- Sun Screen
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C. Energy Conservation- Sun Screen
Census Bureau Headquarters LEED Certification
Construction Management Association of AmericaSustainability Workshop23 January 2009
Iris Amdur, LEED AP, Principal
GreenShape LLC
GreenShape Role
● Engaged by Skansa to help guide the implementation of project sustainability goals
● Provided technical guidance on LEED credits
● Reviewed LEED documentation
● Manage the LEED online submittal process to USGBC
Census Bureau: Sustainable Sites
● SS pr1: Erosion & Sedimentation Control
● SS4.1 - Alternative Transportation, Public Transportation (1pt)
● SS4.2 - Alternative Transportation, Bicycle Storage & Changing Rooms (1pt)
● SS4.3 - Alternative Transportation, Alternative Fuel Vehicles (1pt)
● SS4.4 - Alternative Transportation, Parking Capacity (1pt)
● SS5.2 - Reduced Site Disturbance, Development Footprint (1pt)
● SS6.1 - Stormwater Management, Rate and Quantity (1pt)
● SS6.2 - Stormwater Management, Treatment (1pt)
● SS7.1 - Heat Island Reduction, Non-Roof (1pt)
● SS7.2 - Heat Island Reduction, Roof (1pt)
Census Bureau: Water Efficiency
● WE1.1 - Water Efficient Landscaping, Reduce by 50% (1pt)
● WE1.2 - Water Efficient Landscaping, No Potable Use or No Irrigation (1pt)
● WE3.1 - Water Use Reduction, 20% Reduction (1pt)
● WE3.2 - Water Use Reduction, 30% Reduction (1pt)
Census Bureau: Energy & Atmosphere● EApr1: Fundamental Building Systems Commissioning
● EApr2: Minimum Energy Performance
● EApr3: CFC Reduction in HVAC&R Equipment
● EA1 - Optimize Energy Performance (1pt)
● EA3 - Additional Commissioning (1pt)
● EA4 - Ozone Depletion (1pt)
● EA6 - Green Power (1pt)
Census Bureau: Materials & Resources● MRpr1: Storage & Collection of Recyclables
● MR2 - Construction Waste Management, Divert 50-75% (1pt)
● MR4 - Recycled Content, 5-10% (p.c. + 1/2 p.i.) (2pts)
● MR5.2 - Local/Regional Materials, 10% harvested regionally (1pt)
Census Bureau Indoor Environmental Quality Credits● EQpr1: Minimum IAQ Performance
● EQpr2: Environmental Tobacco Smoke (ETS) Control
● EQ1 - Carbon Dioxide (CO2) Monitoring (1pt)
● EQ2 - Increase Ventilation Effectiveness (1pt)
● EQ3.1 - Construction IAQ Management Plan, During Construction (1pt)
● EQ3.2 - Construction IAQ Management Plan, Pre-Occupancy (1pt)
● EQ4.1 - Low-Emitting Materials, Adhesives & Sealants (1pt)
● EQ4.2 - Low-Emitting Materials, Paints (1pt)
● EQ4.3 - Low-Emitting Materials, Carpet (1pt)
● EQ5 - Indoor Chemical & Pollutant Source Control (1pt)
● EQ6.2 - Controllability of Systems, Non-perimeter Spaces (1pt)
● EQ7.1 - Thermal Comfort, Comply with ASHRAE 55-2004 (1pt)
● EQ7.2 - Thermal Comfort, Permanent Monitoring System (1pt)
Census Bureau Innovation Credits
● ID1.1 Innovation in Design: Low-emitting Furniture (1pt)
● ID1.2 Innovation in Design: Exemplary Performance EA 6 (1pt)
● ID1.3 Innovation in Design: Education & Outreach (1pt)
● ID1.4 Innovation in Design: Green Housekeeping (1pt)
● ID2 LEED™ Accredited Professional (1pt)
LEED and the Construction Manager
● Involve CM in developing project LEED/Design strategy
● Bundle green building systems during cost estimating
● Establish LEED Action Plans during design and refine as job is bid/bought
● Communicate LEED requirements to subcontractors prior to bid and during construction
● Track and Document LEED as you go
● Issue frequent LEED progress reports
● Put LEED on the Construction Meeting Agenda monthly
Questions
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