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N.C. Department of TransportationThe Construction of I40/I77 Interchange
August 9, 2012
I-40/ I-77 Need for Project
Very Important Crossroad of North Carolina
Built and opened in Late 1960’s
Has outlived its service life
Current configuration does not meet todays design guidelines, i.e. weave distances, size of radiuses
Original Traffic Projections were 5000vpd, today the traffic on both interstates is about 70,000vpd, this is projected to be about 110,000vpd in 2035
I-40/I-77 Interchange
Project to Be Built in Three Phases
A I-40/US 21 Interchange and work along I-40 with
Ramps from I77 NB to I40 WB and ramp from I-40
WB to collector Dist.
B The I-40/I77 Interchange Proper
C Peripheral ends of Interstates
I-40/I-77 Interchange
Time Lines
I-3819A Let to contract June 19 2012
I-3819B Let to contract March 2016
I-3819C Post Year
R/W is being secured for entire corridor at this time
What is being Built
I-40
Widen to six lanes from NC 115 to Old Mocksville Rd with collector distributors at 21 (EB and WB)
I-77
Widen to six lanes from South of Broad St. to Jane Sowers
Construct Multi Level Interchange of the two
Interstates
I-40/I-77 Interchange
I-40/I-77 Interchange
What is being Built
US 21
Reconstruct from just north of Glenway Dr. to BB&T south of the interstate with a Double Diverging Interchange at I-40
Broad Steet
Widen from just past Lower Mall Entrance to just
past Cynthia Street
New Bridge at Radio Rd and Davie Ave.
I-40/I-77 Interchange
New Bridge at Radio Rd.
New Bridge Davie Ave.
Broad Street Bridge will be reconstructed
Existing Interchange at Old US 64 will be closed
I-40/Old Mocksville Rd will be upgraded
I-40/I-77 Interchange
How Much will it cost?
Construction of entire project will cost approx.
$251,000,000.00
I-40/I-77 Interchange
Final Configuration of Interchange
Final Configuration of Interchange
N
I-3819 AWhat is being Constructed
I-40 WB Collector Distributor
I-40 WB complete to final configuration (Minus one lane)
Reconstruct Radio Rd Bridge
New Bridge over US 21 and 4th Creek
DDI Interchange at I-40 and US 21
I 77 NB ramp to I 40 WB
I 40 WB to I 77 NB and to Collector Dist.
Reconnection to Gaither Rd.
Noise Walls and Retaining Walls
I-40 at Old Movie Theater
N
I-40/I-77 Initial Interchange
N
I3819 A
Time Line and Cost
Construction to begin August 2012
Project Completion Date March 2017
Cost approximately $90 million
Bridges being built to accommodate future projects
I-3819A… US 21 DDI
What is DDI1.DDI is Double Diverging Interchange
2.Will require traffic to cross over onto opposite side
3.Eliminated the need for conflicting left turn movements…thus eliminating conflicts and congestion
4.Will allow US 21 to flow freely
5.Median Island will prevent left turns out
US 21
Reconstruct US 21 to 4 lanes with a median island
Sidewalks will be constructed on both sides
Median Island from 4th Creek Bridge south thru DDI to the south end of construction, this will prevent left turns
Full access will be allowed at Carolina Ave. via a signal
Gaither Rd
The two way traffic on the existing interstate ramp will be closed off
Gaither will access US 21 via a new Rd from just beside the Furniture Store and will intersect US 21 at a Signal at Glenway Dr, between Chili’s and Wendy’s.
US 21 Gaither Rd Connection
Noise and Retaining Walls
Both Noise and Retaining Walls will be built:
Retaining Walls will be a combination of MSEs (Segmental Precast Units) and Soil Nails with a shotcreate facades.
Noise walls will be precast modules with concrete piles, the facade will be a simulated stone masonry pattern on both sides.
Noise WallsNoise Wall Locations:
I-40 Westbound
Begins directly across from Western Ave. Baptist Church
(just west of Radio Rd Bridge) and runs to where
Museum Rd. moves away from I-40
I-40 Eastbound
Begins at east side of Radio Rd and continues
down interstate and down ramp at US 21 to
behind the Highway Patrol Station.
Noise Walls
I-77 Southbound
Begins just south of Davie Ave and runs southward and up ramp to Broad St.
Begins again at the Creek just south of Broad St and runs southward to behind the Catholic Church
I-40/I-77 Interchange
NCDOT will do significant Public Relations as the project nears and during the life of the project
The project will have its own dedicated Website where up to date information will be posted
Contact Info
Contractor
Zachary Construction Corp. www.zachryconstructioncorp.com
12625 Wetmore Road, Suite 301
San Antonio, Texas 78347
(210) 871-2700
Contact Info
NCDOT
John Cook, Resident Engineer
124 Prison Camp Road
Statesville, NC 28625Email: [email protected]
Phone: (704) 876-3543
Questions?
Feel Free to contact any of the NCDOT Personnel in attendance tonight.
