More Expansion Plans For Interstate 25

Staff | September 28, 2010

Denver— With the massive T-REX expansion of Interstate 25 through Denver's Southeast Corridor now complete, the Colorado Department of Transportation is wrapping up an environmental study on similar expansion of the highway from the north end of the T-REX work at Broadway through the US-85 (Santa Fe Drive) interchange to the big US-6 interchange at West Sixth Avenue.

All that's needed is the money — an estimated $294 million. Since lining up that much funding in one package doesn't seem likely, CDOT is trying phased approvals, separating portions of the overall project that can stand on their own and attempting to fund them individually. The interchange with US-85, considered the most critical part of the project, is being packaged as phase one, along with improvements to the hazardous Bryant Street eastbound on-ramp to West Sixth Avenue at the west edge of the US-6/I-25 interchange.

The US-85 interchange improvements, including widening of I-25 to four lanes in each direction, will cost an estimated $84 million, and the closure of the Bryant Street ramps to US-6 and their replacement with new ramps from Federal Boulevard will add $23 million to the total, meaning CDOT is still looking for $107 million before the first phase work can begin.