Top CDOT Projects of 2007-08

Here is a list of ongoing or recently completed projects statewide from the Colorado Dept. of Transportation.

1. COSMIX (Colorado Springs Metro Interstate Expansion)
Colorado Springs
Start: June 2005
End: Dec. 2007
Contractor: Rockrimmon Constructors (CH2M Hill/SEMA Construction)
Cost: $150 million
CDOT project engineer: David Poling

Widened I-25 from two to three lanes in each direction between Cimarron Street and North Academy Boulevard in Colorado Springs. Also improved the configuration of several key interchanges and bridges along the corridor and constructed numerous noise walls.

2. I-25 Between S.H. 119 & S.H. 66
North I-25
Start: Sept. 2007
End: Fall 2009
Contractor: Interstate Highway Construction
Cost: $48.6 million
CDOT project engineer: Scott Rees

Reconstructs and widens approximately 3.5 mi of I-25 in concrete from four to six lanes and replaces five bridges, including the I-25 bridges over the St. Vrain River, Weld County Road 28 and the S.H. 66. The I-25 and S.H. 66 interchange will also be reconstructed to allow for two through-lanes and two turn lanes in each direction of S.H. 66.

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3. I-25 Reconstruction
Trinidad
Start: Feb. 2007
End: Summer 2009
Contractor: Lawrence Construction Co.
Cost: $37 million
CDOT project engineer: Lester Lowell

The reconstruction of northbound I-25 from Van Buren Street to Goddard Avenue in Trinidad, including the viaduct, mainline bridges over the Purgatoire River and Main Street and the entrance and exit ramps at the Main Street and Commercial Street interchanges.

4. I-25 Between S.H. 52 & S.H. 119
North I-25
Start: Nov. 2006
End: March 2009
Contractor: Flatiron Constructors Inc.
Cost: $36 million
CDOT project engineer: Chris Boespflug

Reconstructs and widens approximately five mi of I-25 in concrete from four to six lanes and replaces the two structures at Weld County Road 20. The east and west frontage roads will also be reconstructed.

5. 4th Street Bridge Reconstruction (S.H. 96)

Pueblo
Start: Dec. 2007
End: Summer 2011
Contractor: Flatiron Constructors Inc.
Cost: $27.7 million
CDOT project engineer: Dean Sandoval

Replaces and reconstructs the existing (1,068-ft-long and 68-ft-wide) 50-year-old structure that crosses the Arkansas River and Union Pacific and Santa Fe/Burlington Northern railroad yards.

6. Powers Boulevard (S.H. 21)
Woodmen Road Interchange
Colorado Springs
Start: Jan. 2007
End: Mid 2009
Contractor: R.E. Monks Construction Co.
Cost: $26 million
CDOT project engineer: David Ewald

Construction of a grade-separated interchange, consisting of a half-diamond, half-cloverleaf configuration. It will replace an outdated intersection that currently handles approximately 100,000 vehicles per day.

7. I-70 & S.H. 58
Golden/Wheat Ridge
Start: Feb. 2007
End: March 2009
Contractor: Ames Construction Inc.
Cost: $23 million
CDOT project engineer: Rene Valdez

Constructs the missing ramps from eastbound I-70 to westbound S.H. 58 and from eastbound S.H. 58 to westbound I-70. The project also realigns and reconstructs the existing ramp from eastbound S.H. 58 to eastbound I-70, without replacing the bridges, as well as the existing ramp from westbound I-70 to S.H. 58. In addition, the existing ramp from Youngfield Street to eastbound I-70 will be relocated approximately one-quarter mi to the south to accommodate a longer acceleration lane.

8. Wadsworth Boulevard
(S.H. 121) at Grandview Avenue
Arvada
Start: Oct. 2006
End: Oct. 2008
Contractor: Hamon Contractors Inc.
Cost: $22.8 million
CDOT project engineer: Larry Quirk

Constructs a grade-separation between Wadsworth Boulevard, Grandview Avenue and the Burlington Northern Santa Fe railroad, which will include two new structures and retaining walls. Wadsworth Boulevard will also be lowered and paved in asphalt. When complete, Wadsworth Boulevard run under Grandview Avenue and the railroad.

9. I-25 Widening
Castle Rock
Start: Sept. 2006
End: Dec. 2007
Contractor: Interstate Highway Constructors
Cost: $18.9 million
CDOT project engineer: Mohammad Khanzadeh

Project reconstructed the interstate in concrete, widening the highway from two to three lanes in each direction between Founders/Meadows Parkway and Fifth Street in Castle Rock. Also included softening of the highway curvature on the south end of the project.

10. I-25/U.S. 36/I-76/I-270
North Denver
Start: Dec. 2006
End: Nov. 2008
Contractor: Edward Kraemer & Sons Inc.
Cost: $18.7 million
CDOT project engineer: Rich McLeod

The last phase of this strategic project constructs a 2,200-ft-long flyover ramp from eastbound I-270 to westbound I-76. The bridge consists of 40 concrete U-girders, which have all been installed. The ramp should open to traffic this summer with the rest of the project wrapping up in November.

11. U.S. 287 Reconstruction
Baca & Prowers Counties
Start: March 2007
End: Nov. 2007
Contractor: Interstate Highway Constructors
Cost: $17.5 million
CDOT project engineer: Brian Long

A 13-mi reconstruction of U.S. 287 between Lamar and Springfield. It reconstructed the highway in concrete and widened the shoulders, from just south of the U.S. 287/S.H. 116 intersection, continuing six mi north of the Baca/Prowers county line.

12. Maroon Creek Bridge Construction (S.H. 82)
Near Aspen
Start: June 2005
End: Late 2008
Contractor: BTE/Atkinson JV
Cost: $13.96 million
CDOT project engineer: Joshua Cullen

The construction of a single concrete box girder bridge structure on S.H. 82, just west of Aspen. A pedestrian bridge was removed, and the new structure will include a 12-ft bike/pedestrian lane. Upon completion of the new bridge, the existing historical bridge, built in 1888 by Midland Railroad, will remain in place.

13. S.H. 145 Keystone Hill Climbing Lane
West of Telluride
Start: June 2006
End: Late fall 2007
Contractor: Kiewit Western Companies
Cost: $11.4 million
CDOT project engineer: Joe Colley

The project consisted of construction of a westbound climbing lane two-thirds of a mi long. The work included five mechanically stabilized earth walls of which three are constructed on a micropile foundation, two soil-nail walls, extensive earthwork, drainage and resurfacing.

14. U.S. 160 One-Way Pairs
Downtown Alamosa
Start: April 2006
End: Dec. 2007
Contractor: Castle Rock Construction
Cost: $8.1 million
CDOT project engineer: Carlito Umali

This capacity-improvement project involved concrete reconstruction of Sixth Street through Alamosa, which has become the new U.S. 160 two-lane eastbound alignment, and restriping and installation of new signals on U.S. 160/Main Street, which has become a new three-lane westbound alignment. Construction was set for completion in July 2008, following a winter suspension, but crews completed the project six months ahead of schedule.

15. U.S. 285 Widening,
Foxton Road to Richmond Hill
Conifer
Start: March 2006
End: Summer 2008
Contractor: Lawrence Construction Co.
Cost: $8 million
CDOT project engineer: Mark Straub

Involves the widening of approximately two mi of U.S. 285 in concrete, from two to four lanes, between Foxton Road and Richmond Hill Road in Conifer. It also includes a new interchange at Richmond Hill Road.

16. I-70 Hogback Parking Facility
Golden
Start: Sept. 2006
End: Nov. 2007
Contractor: Kelly Trucking Inc.
Cost: $7.8 million
CDOT project engineer: Martin Herbaugh

Reconstructed the Hogback Parking Facility at I-70/U.S. 40/Morrison Road intersection and added 918 parking spaces, tripling its capacity. It also reconfigured the U.S. Highway 40/Morrison Road intersection and realigned U.S. Highway 40 around the new parking lot, adding a signal-controlled intersection.

17. U.S. 285 Over Willow Springs
Road & Turkey Creek Road
Jefferson County
Start: Sept. 2006
End: Nov. 2007
Contractor: Ames Construction Inc.
Cost: $5.1 million
CDOT project engineer: Scott Smith

Demolished and replaced the existing U.S. 285 bridges over Willow Springs Road and Turkey Creek Road. The original bridges were constructed in 1968 and both were structurally deficient.

18. I-70 Hanging Lake Tunnel
Emergency Crack Repair
Glenwood Canyon
Start: April 2007
End: Oct. 2007
Contractor: Concrete Works of Colorado
Cost: $4.6 million
CDOT project engineer: Adam Cornely

CDOT closed the eastbound bore of Hanging Lake Tunnel along I-70 in Glenwood Canyon on March 30, 2007. Engineers had been monitoring an expanding crack in the Cinnamon Creek tunnel complex, located in the eastbound bore, since July 2006. The project involved shoring and bracing the 4.5-ft-thick concrete ceiling slab, excavating approximately 30 ft of soil to reach the top of the slab, filling the crack (70 ft long by 1.5 in. wide by 4.5 ft deep) and installing two additional reinforced concrete slabs that “sandwich” the damaged slab.

19. Interchange Roundabouts, I-70 at S.H. 340
Fruita
Start: Nov. 2007
End: July 2008
Contractor: Elam Construction
Cost: $3.8 million
CDOT project engineer: Asa Farrington

Construction of two roundabouts south of the I-70 overpass. The roundabouts will be 200 ft in diameter-the largest ever constructed by CDOT. They will be located at the intersections of S.H. 340 and the eastbound I-70 on/off ramps and at S.H. 340 and Raptor Road.

20. U.S. 85 Widening
Sedalia
Start: June 2007
End: Dec. 2007
Contractor: Sema Construction Inc.
Cost: $2.8 million
CDOT project engineer: Mike Brenner

Reconstructed and widened U.S. Highway 85 in concrete from two to four lanes, just north of Sedalia. It also included new median construction, drainage improvements, landscaping, signing and striping.

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