Background

The Transportation Expansion (T-REX) Project was a $1.67 billion venture that transformed the way people in the metro Denver area travel along the southeast corridor of Interstates 25 and 225. The T-REX project added 19 miles of light rail and improved 17 miles of highway through southeast Denver, Aurora, Greenwood Village, Centennial and Lone Tree. The project was the result of a unique collaboration between the Colorado Department of Transportation and the Regional Transportation District. T-REX construction began in fall 2001 and finished on-time and within budget in 2006.

The contractor hired to complete the T-REX Project, Southeast Corridor Constructors, made it their number one goal to reduce inconvenience to the public. As a result, $3 million of the budget was set aside for Transportation Demand Management activities during construction. As such, Transportation Solutions partnered with other organizations in the area to provide outreach and incentives to encourage motorists to use alternative modes of transportation.

More information about T-REX and the Southeast Light Rail

• Project News & Updates
• Southeast Corridor Service Plan