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
ROAD 23N28
FairOver: CHINO CREEK
NO DATA ENTERED, Butte, CA
Built 1981 ADT: 50
WINDING ROAD
FairOver: BLUE CREEK
NO DATA ENTERED, Calaveras, CA
Built 1981 ADT: 50
NO DATA ENTERED
FairOver: M-FORK STANISLAUS RIVER
04N27, Calaveras, CA
Built 1999 ADT: 50
HAMILTON ROAD
FairOver: EAST FORK MILL CREEK
2.8 MILES EAST OF US 101, Del Norte, CA
Built 1950 ADT: 10
NO DATA ENTERED
FairOver: NO DATA ENTERED
S8 T15N R3E, Del Norte, CA
Built 1974 ADT: 50
NO DATA ENTERED
FairOver: NO DATA ENTERED
S27 T17N R3E, Del Norte, CA
Built 1981 ADT: 50
NO DATA ENTERED
FairOver: NO DATA ENTERED
S11 T18N R3E, Del Norte, CA
Built 1970 ADT: 50
NO DATA ENTERED
FairOver: COON CREEK
NO DATA ENTERED, Del Norte, CA
Built 1985 ADT: 50
NO DATA ENTERED
FairOver: NOTICE CREEK
NO DATA ENTERED, Del Norte, CA
Built 1958 ADT: 50
NO DATA ENTERED
FairOver: BLUFF CREEK
S22 T12N R4E, Del Norte, CA
Built 1976 ADT: 50
NO DATA ENTERED
FairOver: AIKENS
S25 T10N R4E, Del Norte, CA
Built 1957 ADT: 50
WINDING ROAD
FairOver: ANDERSON CANYON
NO DATA ENTERED, El Dorado, CA
Built 1974 ADT: 50
WINDING ROAD
FairOver: SILVER FORK AMER. RIVER
NO DATA ENTERED, El Dorado, CA
Built 1954 ADT: 10
WINDING ROAD
FairOver: WHISKEY CREEK
08S70-1.2, Fresno, CA
Built 1952 ADT: 50
WINDING ROAD
FairOver: EDISON SPILLWAY
04S01-27.9, Fresno, CA
Built 1954 ADT: 50
WINDING ROAD
FairOver: WESTFALL CREEK
NO DATA ENTERED, Fresno, CA
Built 1977 ADT: 50
WINDING ROAD
FairOver: TRIB. SAN JOAQUIN RIVER
08S03-2.74, Fresno, CA
Built 1968 ADT: 50
WINDING ROAD
FairOver: JOSE CREEK
09S07-1.4, Fresno, CA
Built 1954 ADT: 50
NO DATA ENTERED
FairOver: ROCK CREEK
NO DATA ENTERED, Fresno, CA
Built 1969 ADT: 50
WINDING ROAD
FairOver: COW CREEK
NO DATA ENTERED, Fresno, CA
Built 1982 ADT: 50
WINDING ROAD
FairOver: NO DATA ENTERED
NO DATA ENTERED, Fresno, CA
Built 1951 ADT: 50
WINDING ROAD
FairOver: SAN JOAQUIN RIVER
NO DATA ENTERED, Fresno, CA
Built 1984 ADT: 50
WINDING ROAD
FairOver: BEAR CREEK
NO DATA ENTERED, Fresno, CA
Built 1992 ADT: 50
WINDING ROAD
FairOver: DEER CREEK
NO DATA ENTERED, Fresno, CA
Built 1954 ADT: 50
WINDING ROAD
FairOver: BEAR CREEK
NO DATA ENTERED, Fresno, CA
Built 1971 ADT: 50
WINDING DIRT ROAD
FairOver: RANCHERIA CREEK
NO DATA ENTERED, Fresno, CA
Built 1969 ADT: 50
DIRT ROAD
FairOver: BIG CREEK
NO DATA ENTERED, Fresno, CA
Built 1936 ADT: 50
WINDING ROAD
FairOver: SOUTH FORK SAN JOAQUIN
05S01-31.7, Fresno, CA
Built 1968 ADT: 50
WINDING ROAD
FairOver: KAISER CREEK
06S02-21.4, Fresno, CA
Built 1960 ADT: 50
WINDING ROAD
FairOver: N.FORK KINGS RIVER
11S12-23.6, Fresno, CA
Built 1956 ADT: 120
WINDING ROAD
FairOver: BIG CREEK
10S18-6.8, Fresno, CA
Built 1955 ADT: 50
WINDING ROAD
FairOver: UPPER CHINQUAPIN
07S01-12.1, Fresno, CA
Built 1948 ADT: 50
WINDING ROAD
FairOver: DINKEY CREEK
NO DATA ENTERED, Fresno, CA
Built 1971 ADT: 50
NO DATA ENTERED
FairOver: KAISER CREEK
NO DATA ENTERED, Fresno, CA
Built 1989 ADT: 50
IRR BIA RTE 226
FairOver: STONY RIVER
IN GRINDSTONE, Glenn, CA
Built 1977
ROAD
FairOver: STREAM
EEL RIVER, Lake, CA
Built 1962 ADT: 50
CR 417(PUNKIN CTR)
FairOver: MUDDY SLOUGH NO 2
2.6 MI S CR A2, Lassen, CA
Built 1955 ADT: 200
ROAD 30N06
FairOver: SUSAN RIVER
NO DATA ENTERED, Lassen, CA
Built 1976 ADT: 20
ARTERIAL ROAD
FairOver: CHIQUITO CREEK
NO DATA ENTERED, Madera, CA
Built 1957 ADT: 50
WINDING ROAD
FairOver: JACKASS CREEK
NO DATA ENTERED, Madera, CA
Built 1967 ADT: 50
WINDING ROAD
FairOver: CHIQUITO CREEK
NO DATA ENTERED, Madera, CA
Built 1966 ADT: 50
WINDING ROAD
FairOver: JACKASS CREEK
05S40-0.3, Madera, CA
Built 1985 ADT: 50
WINDING ROAD
FairOver: CHIQUITO CREEK
6S01-0.3, Madera, CA
Built 1971 ADT: 50
WINDING ROAD
FairOver: GRANITIE CREEK
05S30-1.2, Madera, CA
Built 1987 ADT: 50
WINDING ROAD
FairOver: SAND CREEK
7S02-14.2, Madera, CA
Built 1962 ADT: 50
WINDING ROAD
FairOver: WILLOW CREEK
04S04-43, Madera, CA
Built 1955 ADT: 50
WINDING ROAD
FairOver: WHISKEY CREEK
07S07-9.1, Madera, CA
Built 1958 ADT: 50
WINDING ROAD
FairOver: ROCK CREEK
07S47-1.0, Madera, CA
Built 1936 ADT: 50
NO DATA ENTERED
FairOver: LONG MEADOW CREEK
NO DATA ENTERED, Madera, CA
Built 1987 ADT: 50
NO DATA ENTERED
FairOver: NO DATA ENTERED
NO DATA ENTERED, Mariposa, CA
Built 1969 ADT: 50
Showing 7,651-7,700 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.