Colorado Economic Recovery and Accountability

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Press Release - Safety Improvement on 96th Ave. at I-76


July 1, 2009


Mindy Crane -- (303) 757-9469

Cell -- (303)-880-2136


ADAMS COUNTY-- The Colorado Department of Transportation (CDOT) started a safety improvement project at the interchange of I-76 and 96th Avenue which will construct two traffic roundabouts at the on and off-ramps to improve mobility and safety. The $4 million project is being funded through the American Recovery and Reinvestment Act (ARRA) and CDOT safety funds.

"This is the third American Recovery and Reinvestment Act transportation infrastructure project to begin the in the 7th Congressional District. Adams County is one of the fastest growing areas in the metro area and the state," stated U.S. Rep. Ed Perlmutter (CO-07). "This project will help with Adams County's rapid growth while improving traffic flow."

The two roundabouts that will be constructed will improve safety, provide for greater capacity and will be designed to accommodate high volumes of large vehicles. One of the major goals of the project is to reduce accidents, especially broadsides. Over a three-year period, 60 accidents occurred at the interchange and 33 were broadside accidents, resulting in 16 injuries.

"We conducted a thorough study of the traffic and accident patterns at the interchange and potential solutions including traffic signals and the roundabouts will give us the best performance in terms of safety and mobility," said CDOT Traffic Engineer Steve Hersey. "With the roundabouts, we can accommodate the heavy truck traffic at the interchange and the nearby frontage roads while improving safety."

To begin the project, 96th Avenue will be placed in a temporary alignment with traffic shifted to the north or the south. In addition, 96th Avenue will be reduced to 11-foot lanes with only one lane open in each direction. At times, there will be only single-lane alternating traffic. At all times, there will be no left or right turn lanes. The northeast and northwest frontage roads will also be reduced to 11-foot lanes for approximately 700 feet. No parking will be allowed along the frontage roads.

In addition, the westbound off-ramp from I-76 to 96th Avenue and the eastbound on-ramp from 96th Avenue to I-76 will be closed during this phase, which is expected to last approximately three months. Detour routes will be set up, which will take motorists to 88th Avenue.

Throughout the project, the speed limit approaching and within the construction area will be reduced 20 MPH. CDOT would like to remind motorists to obey all construction signs and flaggers and to "Slow for the Cone Zone."

Castle Rock Construction Co. is the contractor for this $4 million project which is scheduled to be complete by the end January 2010. The Recovery Act is funding $2.2 million of the total project cost.

In all, Colorado will receive more than $400 million for transportation projects and $103 million for transit projects. For a list of CDOT's Recovery Act projects, visit