Total Bridges
27,040
Public highway bridges in California
State profile · Below national median SD
California bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in California — drawn straight from the FHWA National Bridge Inventory.
- 27,040
- Public bridges
- 32.5%
- Good condition
- 4.6%
- Poor condition
- 4.6%
- Structurally deficient
Good Condition
32.5%
8,777 bridges rated 7-9
-17.5pp vs 50% benchmark
Poor Condition
4.6%
1,244 bridges rated 0-4
Structurally Deficient
4.6%
1,244 bridges flagged for repair priority
-2.4pp vs national avg 7.0%
California vs national bridge condition
California — Good condition share 32.5%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
California — Structurally deficient share 15.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — California (FHWA NBI)
Counties (58)
Alameda 800 Alpine 32 Amador 62 Butte 441 Calaveras 106 Colusa 211 Contra Costa 686 Del Norte 96 El Dorado 196 Fresno 929 Glenn 242 Humboldt 398 Imperial 448 Inyo 67 Kern 686 Kings 168 Lake 129 Lassen 108 Los Angeles 3937 Madera 250 Marin 217 Mariposa 109 Mendocino 357 Merced 532 Modoc 87 Mono 49 Monterey 390 Napa 160 Nevada 135 Orange 1224 Placer 347 Plumas 170 Riverside 1142 Sacramento 775 San Benito 76 San Bernardino 1465 San Diego 1707 San Francisco 170 San Joaquin 666 San Luis Obispo 408 San Mateo 393 Santa Barbara 429 Santa Clara 1041 Santa Cruz 203 Shasta 500 Sierra 65 Siskiyou 423 Solano 383 Sonoma 613 Stanislaus 390 Sutter 120 Tehama 452 Trinity 194 Tulare 599 Tuolumne 128 Ventura 511 Yolo 282 Yuba 136
California vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below California on the same metric.
39
Ohio
4.54% top marginal rate
34
New Jersey
4.59% top marginal rate
06
California
4.60% top marginal rate
05
Arkansas
4.71% top marginal rate
53
Washington
4.81% top marginal rate
Bridges Needing Most Attention in California
Six lowest-condition bridges in California, ranked by composite NBI rating. Each is inspected at least every 24 months.
SPRING CREEK RD
PoorOver: FALL RIVER
0.5 MI N OF MCARTHUR RD, Shasta, CA
Built 1950 Load: 2.7 t ADT: 50
ORESTIMBA ROAD
PoorOver: CCID MAIN CANAL
0.1 MI E DRAPER RD, Stanislaus, CA
Built 1919 Load: 2.9 t ADT: 684
CLARK STREET
PoorOver: M.I.D. CANAL
0.1 MI WEST OF ROAD 26.0, Madera, CA
Built 1955 Load: 3.2 t ADT: 200
GULLING STREET
Structurally DeficientOver: MIDDLE FORK FEATHER RIV
0.2 MI S SH 70, Plumas, CA
Built 1954 Load: 3.2 t ADT: 10,046
AVENUE 10
PoorOver: COTTONWOOD CREEK
JUST E/O ROAD 23, Madera, CA
Built 1950 Load: 3.6 t ADT: 50
S BISHOP AVE
PoorOver: CRESCENT DITCH
0.64 MI S/O MT WHITNEY AV, Fresno, CA
Built 1950 Load: 3.9 t ADT: 125
All Bridges in California
NO DATA ENTERED
FairOver: WEST FK SHADOW CREEK
CECILVILLE, Siskiyou, CA
Built 1991 ADT: 5
NO DATA ENTERED
FairOver: TAYLOR CREEK
CECILVILLE, Siskiyou, CA
Built 1965 ADT: 30
CHINA MT. ROAD
FairOver: CRATER CREEK
CALLAHAN, Siskiyou, CA
Built 1974 ADT: 50
TWO POINTS ROAD
FairOver: SINGLETON CREEK
SCOTT BAR, Siskiyou, CA
Built 1996 ADT: 50
NO DATA ENTERED
FairOver: BOULDER CREEK
CALLAHAN, Siskiyou, CA
Built 1967 ADT: 2
NO DATA ENTERED
FairOver: S FK SCOTT RIVER
CALLAHAN, Siskiyou, CA
Built 1995 ADT: 3
NO DATA ENTERED
FairOver: MILL CREEK
SCOTT BAR, Siskiyou, CA
Built 2000 ADT: 30
MILL CREEK ROAD
FairOver: MILL CREEK
SCOTT BAR, Siskiyou, CA
Built 1993 ADT: 50
NO DATA ENTERED
FairOver: KANGAROO CREEK
CALLAHAN, Siskiyou, CA
Built 2006 ADT: 50
NO DATA ENTERED
FairOver: TRAIL GULCH
CALLAHAN, Siskiyou, CA
Built 2005 ADT: 50
MARTIN DAIRY ROAD
FairOver: LITTLE SHASTA RIVER
GOOSENEST, Siskiyou, CA
Built 1970 ADT: 50
BLUE CANYON ROAD
FairOver: BUTTE CREEK
GOOSENEST, Siskiyou, CA
Built 1969 ADT: 50
ANTELOPE CK ROAD
FairOver: BUTTE CREEK
GOOSENEST, Siskiyou, CA
Built 1974 ADT: 50
NO DATA ENTERED
FairOver: ANTELOPE CREEK
GOOSENEST, Siskiyou, CA
Built 1969 ADT: 10
NO DATA ENTERED
FairOver: BUTTE CREEK
GOOSENEST, Siskiyou, CA
Built 1965 ADT: 10
TOAD LAKE
FairOver: MID. FK. SCRAMENTO RIVER
NO DATA ENTERED, Siskiyou, CA
Built 1966 ADT: 50
STOUTS MEADOW
FairOver: MCCLOUD RIVER
ALGOMA CAMPGROUND, Siskiyou, CA
Built 1940 ADT: 50
COW CREEK
FairOver: MCCLOUD RIVER
NO DATA ENTERED, Siskiyou, CA
Built 1969 ADT: 50
LIBERTY ISLAND RD
FairOver: SHAG SLOUGH
12.6 MI N RTE 12, Solano, CA
Built 1992 ADT: 20
28N29
FairOver: DRAINAGE
NO DATA ENTERED, Tehama, CA
Built 1955 ADT: 20
NO DATA ENTERED
FairOver: DRAINAGE
NO DATA ENTERED, Tehama, CA
Built 1955 ADT: 20
NO DATA ENTERED
FairOver: DEER CREEK
NO DATA ENTERED, Tehama, CA
Built 1941 ADT: 20
ROAD M1
FairOver: BEAVER CREEK
NO DATA ENTERED, Tehama, CA
Built 1966 ADT: 300
BEAR WALLOW
FairOver: N.FORK RATTLESNAKE CREEK
NO DATA ENTERED, Trinity, CA
Built 1940 ADT: 50
MOORES
FairOver: GLEN CREEK
OLD FOREST GLEN STATION, Trinity, CA
Built 1950 ADT: 50
RUSCH CREEK ROAD
FairOver: RUSCH CREEK
NO DATA ENTERED, Trinity, CA
Built 2010 ADT: 50
SMITH CREEK
FairOver: BAKER CREEK
NO DATA ENTERED, Trinity, CA
Built 1981 ADT: 50
21S06
FairOver: 21S06/HOLBY CREEK
NO DATA ENTERED, Tulare, CA
Built 1956 ADT: 5
WINDING ROAD
FairOver: ROSE CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1954 ADT: 50
WINDING ROAD
FairOver: TROUT CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1969 ADT: 50
WINDING ROAD
FairOver: CLAVEY RIVER
NO DATA ENTERED, Tuolumne, CA
Built 1971 ADT: 50
WINDING ROAD
FairOver: SKULL CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1966 ADT: 50
WINDING ROAD
FairOver: SHOOFLY CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1970 ADT: 50
WINDING ROAD
FairOver: RATTLESNAKE CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1969 ADT: 50
NO DATA ENTERED
FairOver: BEAVER CREEK
04N38-7.761, Tuolumne, CA
Built 1994 ADT: 50
NO DATA ENTERED
FairOver: DUCK CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1994 ADT: 50
NO DATA ENTERED
FairOver: N/A
NO DATA ENTERED, Tuolumne, CA
Built 1999 ADT: 50
WINDING ROAD
FairOver: HERRING CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1955 ADT: 50
WINDING ROAD
FairOver: NIAGARA CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1964 ADT: 50
WINDING ROAD
FairOver: SOUTH FORK TUOLUMNE RIV
NO DATA ENTERED, Tuolumne, CA
Built 1961 ADT: 50
WINDING ROAD
FairOver: MOORE CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1970 ADT: 50
INTERSTATE 15 SB
FairOver: BNSF RY, AMTRAK, & UP RR
08-SBD-015-15.90, San Bernardino, CA
Built 1969 Load: 1.6 t ADT: 63,500
YANKEE JIMS RD
FairOver: NORTH FORK AMERICAN RIV
1.5 MI W SHIRT TAIL CYN R, Placer, CA
Built 1930 Load: 2.9 t ADT: 549
GRAPE WAY
FairOver: LINDO CHANNEL
0.9 MI E/O MERIDIAN RD, Butte, CA
Built 1947 Load: 3.6 t ADT: 79
EVAN HEWES HWY
FairOver: AWATOBE DITCH
2.36 MI E/O IMPERIAL HWY, Imperial, CA
Built 1932 Load: 3.6 t ADT: 615
CRITTER CREEK RD
FairOver: MARKHAM RAVINE
0.9 MI S OF NICOLAUS RD, Placer, CA
Built 1930 Load: 3.6 t ADT: 25
MCCARTY CREEK RD
FairOver: MCCARTY CREEK
1.1 MI W PASKENTA RD, Tehama, CA
Built 1937 Load: 3.6 t ADT: 40
ENTRANCE ROAD
FairOver: SCOTTY'S GRAPEVINE SPRIN
From Beatty, CA. take NV-, Inyo, CA
Built 1931 Load: 4.3 t ADT: 1
CR 87A
FairOver: ASH CREEK
1.3 MI NORTH OF SR 299, Modoc, CA
Built 1950 Load: 4.5 t ADT: 23
PALERMO ROAD
FairOver: WYMAN RAVINE
BTWN GENE LN & WYMAN AVE, Butte, CA
Built 1970 Load: 4.9 t ADT: 250
Showing 7,751-7,800 of 27,040 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.