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 leaving the roadway to minimize injury as a result of collisions.