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State Route 20 Timbuctoo Roadway Improvement and Bridge Project
Project Information
- Project Location:
- Yuba County, CA
- Status:
- Completed - Sep 2021
- Structure Type:
- Road / Highway
Scope Of Work
Flatiron is the primary contractor for the project that began in February 2020. The work included:
Upgrading a two-mile section of State Route 20 and straightening curves on a section of the highway.
Widening segments of highway to create uniform 12-foot wide lanes and widening shoulders to a standard eight-foot width.
Constructing a new bridge on the realigned section of the highway and increasing sight distances for motorists traveling on the highway.
To better understand the subsurface conditions, the project team did test-drilling of rock layers and then modeled the rock layers into an earthwork model. This allowed the team to fine-tune project schedules, maximize equipment spread efficiency and improve cost effectiveness. Besides rock modeling, drone technology and photogrammetry topographic surveys were utilized for data collection and analysis.
Approximately 280,000 cubic yards of rocks were removed, with about one-third of which requiring rock blasting. All of the material has been utilized on-site for the embankment construction.
The final work is providing enhanced safety and smoother rides on this major east-west route for local driver and commercial operators.
