Gold Hard Hat Award

I-76/120th Avenue Interchange Phase 2
Submitted by: Edward Kraemer & Sons Inc.

The $19.2 million I-76/120th Avenue Interchange, Phase 2 project consisted of the demolition of four existing concrete bridge structures and one concrete box culvert and replacing them with five new precast concrete girder bridge structures, as well as one new concrete box culvert comprised of more than10,000 cu. yds. of concrete and over two million pounds of reinforcing steel.

In addition to Edward Kraemer & Sons' self-performed structures work, the project also involved subcontracted work to raise the grade and widen 2.4 miles of the I-76 roadway, including 173,722 cu. yds. of embankment material and 130,590 sq. yds. of concrete paving. Also included as a part of the I-76 upgrades were new signs, guardrails, traffic safety devices, drainage, shoulder and finish grading work and reestablishment of wetland areas and landscaping.

Other improvements included elimination of an outdated and heavily congested traffic circle at the intersection of Colorado State Highway 2 (Sable Blvd.) and 120th Ave. and replacing it with a multi-lane signalized intersection.

Improvements to Sable Blvd. and 120th Avenue included 347,257 cu. yds. of embankment material 29,680 sq. yds. of concrete paving and 16,000 tons of asphalt paving to both raise the grade and widen a total of 1.6 miles of the Sable and 120th Avenue roadways. Also included were new signs, guardrails, traffic safety devices, lighting, drainage, shoulder and finish grading work and landscaping.

The 120th Ave. and Sable Blvd. roadways were completed within the first year of construction. All eastbound I-76 work was completed by the end of 2001 and overall the project was completed in September 2002, four months ahead of the original schedule.

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