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Cover Story - May 2008
 

Top CDOT Projects of 2007-08

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

Top CDOT Projects of 2007-08

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.

Top CDOT Projects of 2007-08

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.

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  • 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.

    Top CDOT Projects of 2007-08

    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.

    Top CDOT Projects of 2007-08

    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.

    Top CDOT Projects of 2007-08

    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.

    Top CDOT Projects of 2007-08

    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.

    Top CDOT Projects of 2007-08

    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.

    Top CDOT Projects of 2007-08

    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.

    Top CDOT Projects of 2007-08

    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.

    Top CDOT Projects of 2007-08

    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.

    Top CDOT Projects of 2007-08

    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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