Arapahoe Road and I-25 Interchange

Project Overview

In August 2009, CDOT began a safety and capacity improvement project on Arapahoe Road between Yosemite Street and Boston/Clinton Street. The project adds an additional through lane in each direction underneath the structure by utilizing the existing on-ramp roadway. This means that the third lane will be separated from the existing through lanes by the bridge pillars. The existing configuration for on-ramp traffic, pedestrian crossings and sidewalks will not be impacted.

Other improvements include:

• Adds a dedicated turn lane from westbound Arapahoe Road to northbound Yosemite Street
• Modifies the center median to improve the left turn movement from southbound I-25 to eastbound Arapahoe Road
• Improves signage to help direct motorists to proper lane assignments
• Improves sight distance for pedestrians at various locations within the project limits on Arapahoe Road.