Angeles National Forest
Dalton Bridge, San Dimas Experimental Forest
Cleveland National Forest
Pine Creek Bridge
Eldorado National Forest
Alder Creek Bridge
Middle Fork American River Bridge
Echo Lake Bridge
Rock Creek Bridge
Klamath National Forest
Happy Camp Bridge
Indian Creek Bridge
Red Cap #2 Bridge
North Fork Salmon River Bridge
South Fork Salmon River Bridge #1
South Fork Salmon River Bridge #2
Somes Bar Bridge
Lassen National Forest
South Fork Antelope Creek Bridge
Bailey Creek Bridge
North Battle Creek Bridge
South Fork Battle Creek Bridge
First Gulch Bridge
Rag Dump Bridge
Unidentified
Los Padres National Forest
Matilija Creek Bridge
Mendocino National Forest
Gravelly Valley Bridge
Hunter Bridge
Red Bridge
Sullivan Creek Bridge
Plumas National Forest
Milsap Bar Bridge
Sucker Run Bridge
Unidentified
Sequoia National Forest
Camp Nelson Bridge
Cedar Grove Bridge
Kern River Bridge
Lewis Creek Bridge
Tule River Bridge
Tyler Creek Bridge
Shasta National Forest
Cedar Creek Bridge
Delta Bridge
Kosk Creek Bridge
Lake Britton Bridge, Mt. Shasta-Mt. Lassen Highway
Sims Bridge
Willow Creek Bridge
Sierra National Forest
Balch Camp Bridge
Balch Road Bridge #1
Balch Road Bridge #2
Big Creek Bridge
Del Piedra Bridge
Italian Bar Bridge
Mammoth Pool Bridge
Rock Creek Bridge
Ross Crossing Bridge
Stanislaus National Forest
Bowers Cave Bridge
Briceburg Bridge (old)
North Fork Calaveras River Bridge
Clavey River Bridge
Crane Creek Bridge
Foresta Falls Bridge
Lower Halls Gulch Bridge
Upper Halls Gulch Bridge
Hells Half Acre Bridge
Jordan Creek Bridge
Lumsden Bridge
North Fork Merced River Bridge
Mokelumne River Bridge
Upper Moore Creek Bridge
Riverside Ranger Station Bridge
South Fork Tuolumne River Bridge
Upper Relief Bridge
Tahoe National Forest
North Fork American River Bridge
Big Ben Ranger Station Bridge
Dog Bar Bridge
Fulda Flat Bridge
Jackson Meadows Bridge
Little Truckee River Bridge
Long Crossing Bridge
McKillikan Bridge
Milton Bridge
Poorman Creek Bridge
Rattlesnake Creek Bridge
Rices Crossing Bridge
S Creek Bridge
Second Divide Bridge
Shirtail Canyon Bridge
Shirtail Creek Bridge
Soda Springs Bridge
Steep Hollow Creek Bridge
Texas Hill Bridge
Unidentified
Trinity National Forest
Browns Creek Bridge
Upper Browns Creek Bridge
Coon Creek Bridge
Hawkins Bar Bridge 1940
Junction City Bridge
Rattlesnake Creek Bridge
Salyer Bridge
Stuarts Fork Bridge
North Fork Trinity River Bridge
Miscellaneous Bridges
Robinson Creek Bridge, Mono
Unidentified