The bridge was built by the Los Angeles County Flood Control District using the Works Progress Administration program.
The intended road, known as the East Fork Road, was meant to provide a path through the mountains that was never completed due to the 1938 floods.
The structure is made of reinforced concrete and is officially considered a 'bridge to nowhere' because the road on either side was never finished.
The East Fork of the San Gabriel River is a designated Wild and Scenic River, protecting the water quality and surrounding environment.
The bridge stands approximately 120 feet above the riverbed, providing the drop height for commercial bungee jumping platforms.
The area is home to diverse wildlife, including bighorn sheep, which are frequently spotted in the rocky cliffs above the river.
The Bridge to Nowhere is a 120-foot-long concrete arch bridge spanning the East Fork of the San Gabriel River, located deep within the Sheep Mountain Wilderness. Constructed in 1936 as part of a road intended to connect the San Gabriel Valley to Wrightwood, the project was abandoned after severe flooding in 1938 destroyed the access route. The trailhead at the end of Camp Bonita Road serves as the primary gateway for a 10-mile round-trip hike along the riverbed. Hikers must cross the stream multiple times, with water levels varying significantly depending on recent precipitation. The site remains a popular destination for bungee jumping operators, who utilize the bridge's clearance above the canyon floor. The surrounding Angeles National Forest terrain features rugged scrubland and riparian habitats. No remnants of the original road design exist beyond this singular, isolated structure.
The top of the bridge offers a panoramic view of the canyon, while the riverbed directly below provides the best angle of the arch.
Wear sturdy, closed-toe hiking boots with excellent traction, as you will be wading through water and traversing slippery, loose river rock.
Carry at least 3 liters of water, as the exposed riverbed offers very little shade during the heat of the day.
Download offline maps, as cell service is non-existent within the canyon.
Check the Adventure Pass requirements, as parking at the trailhead typically necessitates a valid Forest Service pass.
Do not attempt this hike during or immediately after heavy rain due to the high risk of flash flooding in the canyon.
Trail access may be restricted during extreme fire danger or after severe weather events that damage the access road.
Practice Leave No Trace principles; pack out all trash, as there are no bins in the wilderness area.
