Swamp Rodent Culverts Project

Project Information

The Swamp Rodent Culverts project proposes to remove and replace two culverts along a portion of SR 178 in Kern County at postmiles 72.70 and 72.79. The existing culverts are badly rusted and failing. This deterioration has made the culverts difficult to maintain for Caltrans maintenance staff. The project would replace the two 18” failed corrugated steel pipe culverts with two new 24” HDPE culverts. This will allow the culverts to function properly and make them easier to maintain.

Project Map

Map showing location of Swamp Rodent Culvert Project on State Route 178.

Draft Environmental Document

The Draft Environmental Document is now available for review: Swamp Rodents Culverts DED.
A copy of the report is also available at the Kern River Valley Branch Library.

Project Timeline

Project Schedule (Subject to change):

  • April 2022: Draft Environmental Document Circulation
  • May 2022: PA&ED
  • January 2023: Advertise
  • September 2023: Begin Construction 

For More Information:


Title VI

For Title VI information, click here: Caltrans Title VI