Highway Safety Improvement Program

The Highway Safety Improvement Program (HSIP), Section 148 of Title 23, United States Code (23 U.S.C §148), is a core Federal-aid program with the purpose of achieving significant reduction in fatalities and serious injuries on all public roadways, including non-State owned roads and roads on tribal land. The Colorado HSIP, administered by CDOT, requires a data-driven, strategic approach to improving highway safety on all public roads with a focus on performance to support zero deaths and serious injuries on Colorado roads.

Local Agency Grant Application Status

Application deadline (February 20th, 2026) for Fiscal Year 2029 projects has passed. Applications are now being evaluated. Award notices to applicants are expected to be issued by end of April 2026.

 HSIP Local Agency Notice of Funding Opportunity Letter for FY 2029

 FHWA Proven Safety Countermeasures