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South Avenue Safety Project

South Avenue Safety Project 3

Project Description

This safety project in Tehama County will be taking place at the intersection of State Route 99 and County Road A9 (South Avenue). The project proposes to reduce the frequency and severity of accidents by replacing the existing stop sign controlled intersection with a roundabout intersection after a traffic collision analysis was conducted by the District 2 Traffic Safety Branch identified a pattern of collisions at this intersection. 

According to the analysis, between January 1, 2013 and December 31, 2017, there were a total of 17 collisions: 11 involved injuries and 6 were property damage only. The total collision rate is 4.7 times the statewide average for similar facility types, and the fatal plus injury rate is 7.0 times the statewide average.

Work will include roadway excavation to accommodate the new alignment and structural section, installation of concrete curbs and gutters, installation of a center island, installation of new signs, and drainage improvements. It is estimated this project will take 150 working days. The majority of construction is anticipated to take place in 2025, with most of the work happening at night

South Avenue Safety Project 6 

Environmental Impacts

The addition of a roundabout in this area will have the following environmental impacts -- 

  • Wetlands: Approximately 0.32 acres will be permanently impacted and 0.12 acres will be temporarily impacted. Wetlands are assumed to be occupied by federally listed species (vernal pool tadpole shrimp, vernal pool fairy shrimp, and Conservancy fairy shrimp). 
  • Seasonal Stream: Approximately 0.013 acres will be permanently impacted and 0.006 acres will be temporarily impacted. 
  • Riparian: Approximately 0.004 acres will be permanently impacted.
  • Annual Grassland: Approximately 2.75 acres will be permanently impacted and 2 acres will be temporarily impacted.
  • Aesthetics: Visual impacts associated with a 45-foot-tall tower, flashing beacons, and safety lighting.
  • Williamson Act Lands: Conversion of approximately 2.75 acres.

To view the full Environmental Document, click here. 

Contact

Project Manager: Sara Hunt

Public Information Officer: Kurt Villavicencio

South Avenue Safety Project Virtual Public Meeting