Sweetwater River Bridge

Sweetwater River Bridge is a steel structure in Rancho San Diego measuring approximately 460 feet long and 22 feet wide, featuring a characteristic triangular truss framework. The support system consists of interconnected steel beams that create the distinctive geometric pattern typical of early 20th century bridge engineering.

The structure was built in 1929 by Pacific Iron and Steel Company and originally served as a crossing for Highway 94 traffic. After replacement by a modern bridge in 1987, the historic structure was preserved and remains standing today as a testament to early industrial engineering.

The bridge marks the entrance to San Diego National Wildlife Refuge, connecting visitors to protected habitats for endangered species and native California plants. Local nature observers and hikers use it as a vantage point to watch birds and wildlife in their natural setting.

The bridge is accessible from Singer Lane, which branches off Highway 94, where a small parking area serves hikers and photographers. The location is straightforward to reach and works well as a stopping point for a walk or short hike along the riverbed.

The structure stands isolated without connection to active roads, occasionally spanning a riverbed that runs completely dry during summer months. This detachment gives it a haunting quality, as if it were a monument from another era now existing only for visitors and the natural world.

Location: California

GPS coordinates: 32.73316,-116.94064

Latest update: December 14, 2025 18:20