Indian Canyon Drive Widening & UPRR Bridge Replacement Federal Aid Project

Harris is providing construction management services and full environmental and inspection oversight for the widening of Indian Canyon Drive, a critical north–south corridor connecting the City of Palm Springs to Interstate 10. The project includes widening the roadway from two to six lanes, replacing the UPRR/Amtrak bridge, installing new traffic signals, reconstructing roadway approaches, and constructing a new gravity sewer system with trenchless crossings beneath active rail lines. Together, these improvements are designed to enhance multimodal access, reduce commute times, and improve traffic flow along one of the region’s most important transportation routes.

As prime consultant, Harris oversees contract administration, inspection, scheduling, documentation, and coordination among the City, Union Pacific Railroad, Caltrans District 8, utility providers, and regulatory agencies. The team also supports staged construction and traffic control to help maintain continuous while managing schedule risks associated with rail coordination, trenchless construction, and desert conditions such as high winds, sand, and storm events.

Core Elements

• Bridge replacement, roadway widening, and utility installation
• Trenchless sewer installation beneath active rail lines
• Coordination with UPRR, Caltrans District 8, utility providers, and regulatory agencies
• Compliance with federal funding requirements, FHWA guidance, and Caltrans LAPM and LAPG standards
• Environmental and inspection oversight, including pre-construction biological surveys and worker environmental awareness training

Beyond the Blueprints

By combining biological monitoring with rigorous inspection and quality control, Harris helps position the project to withstand Caltrans and federal audits while maintaining compliance in a highly sensitive environmental setting.

A key success was Harris’ coordination with Caltrans District 8 and U.S. Fish and Wildlife Service’s Colorado Desert Division to prepare a Biological Assessment Addendum, resulting in an amendment to one of the project’s Biological Opinions. The amendment corrected prior deficiencies and relaxed infeasible mitigation measures, allowing construction to continue with more thorough monitoring of Coachella Valley fringe-toed lizard population.

Following flooding from Tropical Storm Hilary in August 2023, Harris also moved quickly to prepare emergency permitting documentation, coordinate with regulatory agencies, and advise the City on how to proceed without delaying the project. This integrated approach helped the City reduce risk, maintain compliance, and keep a critical regional corridor moving forward.