Planned demolition of a portion of the West Alameda Avenue bridge over Interstate 25 will cause overnight closures of all lanes of I-25 in that area for three consecutive nights beginning Sunday.
Contractors are demolishing the center portion of the old Alameda bridge as part of a project to construct a new, wider span along with other improvements in that area, including widening I-25 under Alameda and improving drainage.
On Sunday through Tuesday, one lane each of northbound and southbound I-25 will close at 8 p.m., with a second lane closing at 9 p.m. and all lanes closing at 11 p.m., according to the Colorado Department of Transportation. All lanes of I-25 at Alameda will reopen by 5:30 a.m. the following morning, CDOT said.
During the full closure, northbound I-25 traffic will exit at Broadway and be diverted onto Lincoln Street to 6th Avenue for a return to I-25.
Southbound I-25 traffic will have to exit at Alameda during the full closure, but CDOT officials recommend that motorists exit earlier for their detour, at 6th Avenue, to avoid even more delay.
Overnight on Wednesday and Thursday, there will be triple lane closures on both northbound and southbound I-25 near Alameda, beginning at 11 p.m., as the work is finished, but some through traffic will be maintained on the highway, CDOT said.
Reconstruction of the Alameda Avenue bridge over I-25 is part of a $37 million package of improvements funded with federal stimulus dollars.
Throughout the construction period, “major delays are expected on I-25 and Alameda Avenue and alternate routes are strongly advised,” CDOT said.Jeffrey Leib: 303-954-1645 or jleib@denverpost.com
