SAN BERNARDINO COUNTY — The California Department of Transportation (Caltrans) alerts the public that Caltrans Mountain crews will be performing a SWARM operation on State Route 18 (SR-18) between Running Springs and Big Bear Lake. Weather permitting.

Work will occur on Monday, September 8th to Friday, September 12th from 8:00 a.m. to 3:00 p.m. conducting a FULL CLOSURE of State Route 18 from Green Valley Lake Road to Big Bear Dam/North Shore Drive. SWARM operations are a concentrated effort where multiple crews tackle a variety of maintenance tasks at once, maximizing efficiency. SWARM activities for this operation include slope stabilization, fixing delineation, leveling out the shoulders, and filling in any roadway to right shoulder drop-offs. 

Watch for signage alerting motorists of upcoming maintenance and remember to reduce your speed in and surrounding the work zone due to heavy equipment and crews entering and exiting the maintenance area.