Dillon Road / West 144th Avenue Improvements

Broomfield, CO

Large-scale capacity, drainage, and wet utility upgrades in a high-traffic urban corridor

Located in Broomfield, CO, the Dillon Road / West 144th Avenue Improvements project delivered significant capacity, drainage, and utility upgrades in a busy urban corridor. The team installed over 23,300 LF of utilities, including storm sewer and waterline systems, while managing phased construction to minimize public disruption and maintain service.

This project upgraded critical utility infrastructure along a high-traffic arterial in Broomfield, CO, enhancing storm, water, and drainage systems within a constrained right-of-way. Through effective traffic control, public outreach, and safe execution of over 67,780 man-hours, the team delivered both the initial and expanded scope on time, earning the City’s trust for additional work.

Completion Date July 2021
Client City and County of Broomfield
Type Urban Infrastructure/ Drainage & Utilities
HEI Role General Contractor
Installed over 23,300 LF of utilities, including 15,000 LF of storm sewer and 7,800 LF of waterline
Constructed 500 LF of 4'x6' concrete box culvert to relocate FRICO community ditch; installed 50 drainage structures and 58 manholes

Installed 900 LF of 66” RCP within the storm sewer system

Managed construction in a high-traffic corridor with limited ROW

Coordinated multiple utility installations while maintaining service

Phased construction to minimize public disruption

Added second project phase under same contract due to performance

Completed without any lost-time or recordable safety incidents