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
U.S. HIGHWAY 101
FairOver: JONES STREET
05-SB-101-88.10-SMRA, Santa Barbara, CA
Built 1962 Load: 27.5 t ADT: 58,000
JALAMA ROAD
FairOver: RAMAJAL CREEK
7.7 MI WEST OF SR 1, Santa Barbara, CA
Built 1951 Load: 27.5 t ADT: 669
ALAMO PINTADO AV
FairOver: ALAMO PINTADO CREEK
0.2 MI W OF GRAND AV, Santa Barbara, CA
Built 1948 Load: 27.5 t ADT: 1,686
S280-FOOTHILL OFF
FairOver: UP RR
04-SCL-280-11.48-LATS, Santa Clara, CA
Built 1967 Load: 27.5 t ADT: 5,500
ALMADEN EXPRESSWAY
FairOver: GUADALUPE CREEK
NEAR COLEMAN RD, Santa Clara, CA
Built 1965 Load: 27.5 t ADT: 58,310
MT MADONNA RD
FairOver: LITTLE ARTHUR CREEK
AT REDWOOD RETREAT RD, Santa Clara, CA
Built 1925 Load: 27.5 t ADT: 80
REDWOOD RETREAT RD
FairOver: LITTLE ARTHUR CREEK
2.4 MI W WATSONVILLE RD, Santa Clara, CA
Built 1925 Load: 27.5 t ADT: 400
EAST CLIFF DRIVE
FairOver: CORCORAN LAGOON
0.1 MI EAST OF 21ST AVE, Santa Cruz, CA
Built 1978 Load: 27.5 t ADT: 4,125
DANA DRIVE
FairOver: WEST BRANCH CHURN CREEK
0.05 MI W/O CANBY RD, Shasta, CA
Built 1958 Load: 27.5 t ADT: 21,118
PORT WINE RIDGE RD
FairOver: ROCK CREEK
10.6 MI N/E CHLNGE-LA PO, Sierra, CA
Built 1961 Load: 27.5 t ADT: 25
RAMAL ROAD
FairOver: RAMAL CREEK
3.45 MI S OF SH 121, Sonoma, CA
Built 1970 Load: 27.5 t ADT: 400
WILLMS ROAD
FairOver: MAIN CREEK
1.2 MI SE JCT SR 120, Stanislaus, CA
Built 1929 Load: 27.5 t ADT: 85
INTERSTATE 5 SB
FairOver: DIBBLE CREEK
02-TEH-005-R28.16, Tehama, CA
Built 1965 Load: 27.5 t ADT: 15,500
CONARD LOOP RD
FairOver: SOUTH FORK BATTLE CREEK
0.3 MI E OF SH 36, Tehama, CA
Built 1970 Load: 27.5 t ADT: 50
NO DATA ENTERED
FairOver: 2ND GULCH STREAM
NO DATA ENTERED, Tehama, CA
Built 1955 Load: 27.5 t ADT: 20
CANYON CREEK ROAD
FairOver: CLEAR GULCH
1.4 MI NE SR 299 JCT CITY, Trinity, CA
Built 1955 Load: 27.5 t ADT: 75
ROAD 192
FairOver: WHITE RIVER
.1 MI S/O AVE 32, Tulare, CA
Built 1947 Load: 27.5 t ADT: 1,025
AVE 192
FairOver: DEEP CREEK
AT RD 52, Tulare, CA
Built 1940 Load: 27.5 t ADT: 250
STATE ROUTE 1 NB
FairOver: HUENEME RD
07-VEN-001-12.79, Ventura, CA
Built 1957 Load: 27.5 t ADT: 5,450
HARBOR BLVD
FairOver: ARUNDELL BARRANCA
1.0 MI S SEAWARD AVE, Ventura, CA
Built 1965 Load: 27.5 t ADT: 8,074
STATE ROUTE 113
FairOver: SACRAMENTO RIVER
03-YOL-113-22.02, Yolo, CA
Built 1933 Load: 27.5 t ADT: 8,300
CACHE CK CONSER RD
FairOver: GORDON SLOUGH
105 FT SOUTH OF C.R. 20, Yolo, CA
Built 1940 Load: 27.5 t ADT: 300
STATE ROUTE 61
FairOver: SAN LEANDRO BAY
04-ALA-061-18.55-ALA, Alameda, CA
Built 1953 Load: 27.9 t ADT: 43,600
INTERSTATE 880
FairOver: EAST CREEK SLOUGH
04-ALA-880-27.23-OAK, Alameda, CA
Built 1948 Load: 27.9 t ADT: 221,000
LUPIN RD
FairOver: SOUTH BAY AQUEDUCT
1.0 MI E GREENVILLE RD, Alameda, CA
Built 1962 Load: 27.9 t ADT: 30
DAYTON-DURHAM HWY
FairOver: BUTTE CREEK
0.8 MI E MIDWAY RD, Butte, CA
Built 1970 Load: 27.9 t ADT: 3,013
ALEXANDER AVE
FairOver: SUTTER-BUTTE CANAL
N EVANS-REIMER RD, Butte, CA
Built 1965 Load: 27.9 t ADT: 50
LODOGA-STONYFRD RD
FairOver: LITTLE STONY CREEK
0.1 MI E OF GOAT MT RD, Colusa, CA
Built 1956 Load: 27.9 t ADT: 324
CANAL RD
FairOver: CONTRA COSTA CANAL
0.2 MI E BAILEY RD, Contra Costa, CA
Built 1969 Load: 27.9 t ADT: 10,900
U.S. HIGHWAY 50 EB
FairOver: CAMERON PARK DR
03-ED-050-6.57, El Dorado, CA
Built 1970 Load: 27.9 t ADT: 31,500
INTERSTATE 5 SB
FairOver: PHELPS AVE
06-FRE-005-8.81, Fresno, CA
Built 1967 Load: 27.9 t ADT: 15,000
S QUALITY AVE
FairOver: FOWLER SWITCH CANAL
0.02 MI S OF SWITCH AVE, Fresno, CA
Built 1940 Load: 27.9 t ADT: 400
W CENTRAL AVE
FairOver: DRY CREEK CANAL
0.1 MI EAST OF HOWARD AVE, Fresno, CA
Built 1950 Load: 27.9 t ADT: 400
E PATTERSON AVE
FairOver: DRY CREEK CANAL
AT DELPHIA AVE, Fresno, CA
Built 1940 Load: 27.9 t ADT: 506
U.S. HIGHWAY 101
FairOver: EEL RIVER & NCRRA
01-HUM-101-R48.69, Humboldt, CA
Built 1965 Load: 27.9 t ADT: 5,900
US HIGHWAY 101 NB
FairOver: ELK RIVER
01-HUM-101-74.60, Humboldt, CA
Built 1988 Load: 27.9 t ADT: 16,200
BLUE SLIDE RD
FairOver: HOWE CREEK
JCT HOWE CREEK ROAD, Humboldt, CA
Built 1978 Load: 27.9 t ADT: 346
STATE ROUTE 111
FairOver: "X" DRAIN
11-IMP-111-40.82, Imperial, CA
Built 1950 Load: 27.9 t ADT: 3,650
STATE ROUTE 111
FairOver: MARSHY WASH
11-IMP-111-41.10, Imperial, CA
Built 1950 Load: 27.9 t ADT: 3,650
STATE ROUTE 22 EB
FairOver: LOS CERRITOS CHANNEL
07-LA-022-1.09-LBCH, Los Angeles, CA
Built 1955 Load: 27.9 t ADT: 33,500
RAMP/CONNECTOR 710
FairOver: LOS ANGELES RIVER
07-LA-710-9.30-LBCH, Los Angeles, CA
Built 1963 Load: 27.9 t ADT: 35,000
INTERSTATE 405
FairOver: JEFFERSON BLVD
07-LA-405-25.93-LA, Los Angeles, CA
Built 1963 Load: 27.9 t ADT: 284,000
ROCKVALE AVE
FairOver: LITTLE DALTON WASH
0.1MI S/O ALOSTA BLVD, Los Angeles, CA
Built 1961 Load: 27.9 t ADT: 1,273
APPIAN WAY
FairOver: ALAMITOS BAY
0.2MI N/O 2ND ST, Los Angeles, CA
Built 1960 Load: 27.9 t ADT: 8,755
AVENUE 60
FairOver: ARROYO SECO CHANNEL
AT SR 110, Los Angeles, CA
Built 1909 Load: 27.9 t ADT: 16,300
STATE ROUTE 99 NB
FairOver: COTTONWOOD CREEK
06-MAD-099-R7.28, Madera, CA
Built 1967 Load: 27.9 t ADT: 32,500
COMPTCHE-UKIAH RD
FairOver: NORTH FORK ALBION RIVER
13.4 MI E JCT SR 1, Mendocino, CA
Built 1965 Load: 27.9 t ADT: 1,316
PRESTON ROAD
FairOver: TEMBLADERO SLOUGH
0.1 MI S SR 183, Monterey, CA
Built 1930 Load: 27.9 t ADT: 230
RAGATZ LANE
FairOver: YOUNTVILLE OVERFLOW
0.7 MI NE WASHINGTN ST, Napa, CA
Built 1940 Load: 27.9 t ADT: 161
INTERSTATE 80 WB
FairOver: SOUTH YUBA RI & S YUBA D
03-PLA-080-67.87, Placer, CA
Built 1959 Load: 27.9 t ADT: 13,500
Showing 11,301-11,350 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.