Norris Canyon Road Safety Barrier

Southwest County
PROJECT BUDGET $1.8 Million
PROJECT SPONSOR
Contra Costa County
LOCATION:

Norris Canyon Road west of Ashbourne Drive

STATUS:
Ongoing
Habitat
When rural roads are located adjacent to creek banks, a “battered” wall design can minimize permanent impact to the adjacent creek habitat.
Norris Canyon Road is a narrow rural road that winds through the hills of Bollinger Canyon along the banks of San Catanio Creek. The existing road width is 20 feet, with 10-foot-wide travel lanes and limited to non-existent road shoulders. At several locations, severe incision of San Catanio Creek has resulted in a steep creek bank immediately adjacent to the rural road. During the last decade, two run-off-the-road collisions resulted in fatalities as the adjacent creek drops approximately twenty feet or more below the roadway. The proposed safety barrier is intended to keep motorists from lea ...more