The City of Fort Collins is starting a major reconstruction of the intersection at U.S. Highway 287 (College Avenue) and Trilby Road. This project follows several years of planning and initial work completed in 2024.
The rebuilt intersection will include:
As a part of this project the City will also:
These improvements will make the intersection safer and more efficient for drivers, pedestrians and cyclists as traffic in the area continues to increase.
A recent City study found several issues at this intersection, including:
This project also supports the City’s long-term plan to widen Trilby Road to four lanes between Shields Street and Timberline Road.
Expect lane closures on College Avenue (U.S. Highway 287) and Trilby Road, as well as a full closure of Trilby Road, during construction on this project. Specific closures and impacts will be updated on our Construction and Traffic Impacts webpage during this project's work period.
Beginning Feb. 10, 2026, lanes of travel will be shifted along College Avenue to allow crews to work in the middle of the roadway:
During these shifts existing detours and all access to businesses will remain unchanged.
Traffic traveling on Trilby between Shields Street and Lemay Avenue will have no access to College/U.S. Highway 287 during this closure.
A temporary traffic signal will be available at the intersection of Triangle Drive and U.S. Highway 287 to facilitate safe access between U.S. Highway 287 and the Ridgewood Hills neighborhood during this closure. That traffic signal will be made permanent before the completion of this project.
Construction at the intersection of College Avenue and Trilby Road can't accommodate bicycle traffic along College/U.S. Highway 287 or Trilby.
The first construction package was completed during summer 2024, installing a new retaining wall near the southwest corner of College Avenue and Trilby Road. This phase had little to no traffic impacts.
The second phase will install storm sewer, water line and sanitary sewer, followed by the installation of concrete and asphalt and a new traffic signal. The work will be performed starting on the west half of the intersection (mid-May 2025 through mid February 2026). Phase two also includes constructing utilities and median curbs on College Avenue mid-January through mid-March 2026. The third phase of construction will build the east side of the roadway and will begin in April 2026 through September 2026.
For business questions or concerns, contact Michael Bussman, Lead Business Specialist (Economic Health) at 970-416-2307 or mbussmann@fortcollins.gov.
College and Trilby, Fort Collins, CO View Map
College and Trilby , Fort Collins, CO