Adams Street Bridge

The Project.

This four-span bridge provides a safe north-south crossing over Whitewater River Channel, as thunderstorms in the Coachella Valley cause rapid and dangerous flows, rendering a generally dry two-lane road under water and impassable.


La Quinta, CA


  • Geotechnical Testing
  • Special Inspection
  • Materials Testing

Project Fact:

The City of La Quinta introduced the Adams Street Bridge Improvement Project to provide a safe, all-weather crossing of the Whitewater River Channel.

The Leighton Solution.

Leighton provided geotechnical and material testing services in conformance with the construction documents and the City of La Quinta’s Quality Assurance Plan (QAP).

The project required the identification suitable onsite soils for bridge abutment and constructing cement treated steep slopes for the channel side slopes.
Our services included soils and concrete testing during fill placement for bridge approaches, concrete box girders, curb and gutter, sidewalks, paving, and associated appurtenances.

Material testing services were in compliance with applicable Caltrans and federal requirements.