The original 1884 dam was a unique multi-arched design that was considered an engineering marvel at the time.
The current dam was built in 1912 to accommodate the increasing water needs of the region and is significantly larger than its predecessor.
The original dam construction required 3,000 barrels of cement hauled by teamsters from San Bernardino.
The historic 1884 dam is partially submerged but remains visible when lake levels drop significantly.
The dam's primary function is to store snowmelt from the San Bernardino Mountains for downstream irrigation.
Bear Valley Dam, located on the northern shore of Big Bear Lake, is a critical piece of water management infrastructure originally constructed in 1884. The current concrete arch dam replaced the original rock-fill dam, which was the first of its kind in California. The site serves as the primary outlet regulating water levels for the entire Big Bear Lake reservoir. Visitors can view the dam structure from the surrounding shoreline and designated public access points near the intersection of Big Bear Blvd and North Shore Drive. The dam remains an active facility operated by the Big Bear Municipal Water District. It is listed as a California Historical Landmark because of its engineering significance in the late 19th-century irrigation efforts.
The turnout on the north side of the highway offers a direct line of sight to the dam face.
Bring binoculars to see details of the historic dam structure across the water.
Check the official Big Bear Municipal Water District website for reservoir levels before visiting to ensure the historic structure is visible.
Parking is extremely limited; use designated turnout areas rather than the side of the road.
Do not attempt to walk on the dam crest as it is restricted, high-security property.
Stay behind all fencing and barriers; do not attempt to access restricted maintenance roads or the dam face itself.
