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
SAN FERNANDO RD
PoorOver: TUJUNGA WASH
0.2 MI NW TRUESDALE ST, Los Angeles, CA
Built 1935 Load: 33.7 t ADT: 21,500
LOS ALAMITOS BLVD.
PoorOver: COYOTE CREEK CHANNEL
0.3 MI. N/O CERRITOS AVE., Orange, CA
Built 1955 Load: 33.7 t ADT: 24,008
UNION ROAD
PoorOver: SAN BENITO RIVER
EAST CIENEGA RD, San Benito, CA
Built 1959 Load: 33.7 t ADT: 11,000
SCARONI RD
PoorOver: MAJORS CREEK
0.2 MI W OF SR 1, Santa Cruz, CA
Built 1970 Load: 33.7 t ADT: 10
INTERSTATE 5 SB
PoorOver: KERN RIVER
06-KER-005-42.00, Kern, CA
Built 1969 Load: 34.0 t ADT: 15,000
INTERSTATE 5 NB
PoorOver: KERN RIVER
06-KER-005-42.00, Kern, CA
Built 1969 Load: 34.0 t ADT: 15,000
BREA CYN RD
PoorOver: SAN JOSE CRK
150FT S/O VAL BLVD, Los Angeles, CA
Built 1968 Load: 34.0 t ADT: 23,929
CENTER PARKWAY
PoorOver: UNION HOUSE CREEK
JUST N OF COSUMNES BLVD, Sacramento, CA
Built 1975 Load: 34.0 t ADT: 13,295
N OLD STAGE RD
PoorOver: SHASTA RIVER
0.8 MI N COLLEGE AVE, Siskiyou, CA
Built 1968 Load: 34.0 t ADT: 379
GERICKE RD
PoorOver: AMERICANO CREEK
0.2 MI S VALLEY FORD RD, Sonoma, CA
Built 1972 Load: 34.0 t ADT: 100
ROSE LANE
PoorOver: NORTH FORK JACKSON CREEK
50 FT WEST OF N. MAIN ST., Amador, CA
Built 1971 Load: 34.3 t ADT: 30
OLD GASQUET TOLL
PoorOver: EIGHTEEN MILE CREEK
5 MI FROM ROUTE 199, Del Norte, CA
Built 1970 Load: 34.3 t ADT: 20
AGOURA RD
PoorOver: LAS VIRGENES CRK
0.1MI W/O LAS VIRGENES, Los Angeles, CA
Built 1972 Load: 34.3 t ADT: 8,709
LIVE OAK AVE
PoorOver: SAN GABRIEL RIV
0.3MI E/O I-605 FWY, Los Angeles, CA
Built 1961 Load: 34.3 t ADT: 25,359
US HIGHWAY 101 SB
PoorOver: BRADLEY RD
05-MON-101-R7.94, Monterey, CA
Built 1965 Load: 34.3 t ADT: 8,100
INTERSTATE 880
PoorOver: GUADALUPE RIVER
04-SCL-880-3.15-SJS, Santa Clara, CA
Built 1960 Load: 34.3 t ADT: 165,000
RAILROAD AVENUE
PoorOver: EAST BRANCH SMITHNECK CR
1/4 MI SOUTH OF ROUTE 49, Sierra, CA
Built 1987 Load: 34.3 t ADT: 1,000
WILFRED AVE
PoorOver: BELVIEW-WILFRED CREEK
0.2 MI E PRIMROSE AVE, Sonoma, CA
Built 1963 Load: 34.3 t ADT: 1,857
MCCRACKEN ROAD
PoorOver: INGRAM CREEK
0.1 MI N HOWARD ROAD, Stanislaus, CA
Built 1967 Load: 34.3 t ADT: 296
LAGUNA ROAD
PoorOver: MUGU LAGOON
NBVC POINT MUGU, Ventura, CA
Built 1949 Load: 34.6 t ADT: 200
EDGAR RD
PoorOver: THISTLE CANAL
0.55 MI W/O FORRESTER RD, Imperial, CA
Built 1974 Load: 34.7 t ADT: 80
INTERSTATE 5 SB
PoorOver: MILLUX ROAD & SUNSET RR
06-KER-005-30.75, Kern, CA
Built 1967 Load: 34.7 t ADT: 17,000
LOWER AZUSA RD
PoorOver: ARCADIA WASH
0.4MI W/O SANTA ANITA AVE, Los Angeles, CA
Built 1959 Load: 34.7 t ADT: 30,816
GARIBALDI AVE
PoorOver: EATON WASH
0.4MI W/O ROSEMEAD BLVD, Los Angeles, CA
Built 1953 Load: 34.7 t ADT: 918
CHAPMAN AVENUE
PoorOver: SANTA ANA RIVER CHANNEL
0.1 MI. W/O ROUTE 57 FWY, Orange, CA
Built 1976 Load: 34.7 t ADT: 32,900
WATERLOO RD
PoorOver: STOCKTON DIVERTING CANAL
0.2 MI S/W OF S.H. 99, San Joaquin, CA
Built 1967 Load: 34.7 t ADT: 13,366
TURNPIKE RD
PoorOver: WALKER SLOUGH
1/4 MI N DOWNING AVE, San Joaquin, CA
Built 1971 Load: 34.7 t ADT: 2,100
MANTHEY ROAD
PoorOver: WALKER SLOUGH
1/4 MI N DOWNING AV, San Joaquin, CA
Built 1971 Load: 34.7 t ADT: 4,600
SIXTY-EIGHTH AVE
PoorOver: SOUTH FORK ANTELOPE CRK
AT SR 99, Tehama, CA
Built 1929 Load: 34.7 t ADT: 500
MARSH CREEK RD
PoorOver: MARSH CREEK
3 MI E DEER VALLEY ROAD, Contra Costa, CA
Built 1937 Load: 35.0 t ADT: 3,979
NOVATO BLVD
PoorOver: NOVATO CREEK
0.5 MILE S OF SUTRO AVE., Marin, CA
Built 1969 Load: 35.0 t ADT: 10,024
STATE ROUTE 99 NB
PoorOver: BLACK RASCAL CANAL
10-MER-099-17.30, Merced, CA
Built 1962 Load: 35.0 t ADT: 25,500
INTERSTATE 10 WB
PoorOver: THOUSAND PALMS WASH
08-RIV-010-R53.80-IND, Riverside, CA
Built 1972 Load: 35.0 t ADT: 33,000
INTERSTATE 40 EB
PoorOver: WEST LUDLOW WASH
08-SBD-040-R49.71, San Bernardino, CA
Built 1968 Load: 35.0 t ADT: 8,250
STATE ROUTE 217
PoorOver: SAN JOSE CREEK
05-SB-217-1.02-SB, Santa Barbara, CA
Built 1963 Load: 35.0 t ADT: 12,500
SCOTT BLVD
PoorOver: SAN TOMAS AQUINO CREEK
W OF SAN TOMAS EXPWY, Santa Clara, CA
Built 1973 Load: 35.0 t ADT: 11,000
ARNOLD DR
PoorOver: SONOMA CREEK
7.8 MI N OF SR 116, Sonoma, CA
Built 1924 Load: 35.0 t ADT: 13,900
8TH ST EAST
PoorOver: SCHELL CREEK
0.25 MILE NORTH OF RT 12, Sonoma, CA
Built 1968 Load: 35.0 t ADT: 1,500
INTERSTATE 5 SB
PoorOver: COVELL ROAD (PRIVATE)
10-STA-005-11.22, Stanislaus, CA
Built 1967 Load: 35.0 t ADT: 18,000
INTERSTATE 5 NB
PoorOver: COVELL ROAD (PRIVATE)
10-STA-005-11.22, Stanislaus, CA
Built 1967 Load: 35.0 t ADT: 18,000
7TH AVE
PoorOver: E BRANCH PEOPLES DITCH
0.5 MI N EXCELSIOR AVE, Kings, CA
Built 1960 Load: 35.3 t ADT: 350
WALNUT GROVE AVE
PoorOver: ALHAMBRA WASH
0.8MI N/O SR-60 FWY, Los Angeles, CA
Built 1937 Load: 35.3 t ADT: 17,934
ARMOUR ROAD
PoorOver: PHEASANT CANAL
0.5 MI N/O VARNEY RD, Sutter, CA
Built 1950 Load: 35.3 t ADT: 55
RD 284
PoorOver: TULE RIVER
0.1 MI N OF SR 190, Tulare, CA
Built 1963 Load: 35.3 t ADT: 1,500
STATE ROUTE 33
PoorOver: COLONY MAIN CANAL
06-FRE-033-75.95, Fresno, CA
Built 1947 Load: 35.6 t ADT: 3,025
STATE ROUTE 33
PoorOver: HELM CANAL
06-FRE-033-72.81, Fresno, CA
Built 1947 Load: 35.6 t ADT: 3,500
STATE ROUTE 86 SB
PoorOver: VERDE DITCH
11-IMP-086-57.69, Imperial, CA
Built 1989 Load: 35.6 t ADT: 7,300
LERDO HIGHWAY
PoorOver: CALIFORNIA AQUEDUCT
6 MI WEST OF INTERSTATE 5, Kern, CA
Built 1966 Load: 35.6 t ADT: 2,492
TWISSELMAN ROAD
PoorOver: CALIFORNIA AQUEDUCT
2.7 MI EAST HOLLOWAY ROAD, Kern, CA
Built 1965 Load: 35.6 t ADT: 800
PUENTE AVE
PoorOver: BIG DALTON WASH
0.2MI S/O RAMONA BLVD, Los Angeles, CA
Built 1959 Load: 35.6 t ADT: 2,137
Showing 26,651-26,700 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |