I-25 & Alameda Bridge Replacement

About the Project:

Project improvements include:

• Replacement of the Alameda over South Platte River Bridge, improving flood capacities
• Modifications to Alameda intersections to improve access and build a multi-modal corridor: reconfiguration of the I-25 South Santa Fe Drive interchange, elimination of South Platte River Drive from Alameda to Cedar; traffic will be diverted to the widened South Lipan Street north of West Alameda Avenue
• Reconstruction of the South Platte River Trail: improvements in sight distance, increased 12-foot concrete trail, a 4-foot finely crushed stone trail, and 3-foot vegetated shoulders for an overall trail width of 22 feet
• Construction of an on-street two-way cycle track on the north side of Alameda between South Lipan Street and South Kalamath Street with a connection to the South Platte River Trail
• Installation of a water quality pond and associated South Platte River outfall
• Improvements to sidewalks on both sides of Alameda

Work Schedule:

• Typical working hours will be from 7 a.m. to 7 p.m., Monday through Friday. 

Traffic Impacts:

• Bridge reconstruction will be phased with Alameda remaining open except for an occasional nighttime or weekend closure for bridge removal.
• Motorists can also expect one-lane and turn-lane closures in the construction zone.
• During the initial phase of construction, Lipan Street will be built out in preparation for removing South Platte River Drive. Closures of Lipan Street can be expected.
• The South Platte River Trail will be detoured around the construction zone where it crosses under Alameda, but will remain open.