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
88TH ST
FairOver: MORRISON CREEK
0.1 MI S/O 37ST ST, Sacramento, CA
Built 1981 Load: 18.5 t ADT: 3,581
N 1ST AVENUE
FairOver: MOJAVE RIVER OVERFLOW
0.1 MI N OF IRWIN RD., San Bernardino, CA
Built 1939 Load: 18.5 t ADT: 3,400
BONITA GLEN TERRAC
FairOver: SWEETWATER RIV TRIBUTARY
500FT S/O CENTRAL AVE, San Diego, CA
Built 1972 Load: 18.5 t ADT: 1,700
SR 1
FairOver: WEST PACIFIC AVE
04-SF-001-6.18-SF, San Francisco, CA
Built 1939 Load: 18.5 t ADT: 64,000
LONE TREE RD
FairOver: LONE TREE CREEK
1.4 MI WEST MURPHY RD, San Joaquin, CA
Built 1928 Load: 18.5 t ADT: 1,104
HIGGINS PURISIMA R
FairOver: MILLS CREEK
1.5 MI E OF MAIN ST, San Mateo, CA
Built 1914 Load: 18.5 t ADT: 477
PESCADERO RD
FairOver: HONSINGER CREEK
2.6 MI E SR 1/@ CLOVRDALE, San Mateo, CA
Built 1957 Load: 18.5 t ADT: 1,084
GERI LANE
FairOver: SANCHEZ CREEK
.2 MI SW OF FOREST VIEW, San Mateo, CA
Built 1930 Load: 18.5 t ADT: 1,000
SAN MARCOS RD
FairOver: MARIA YGNACIA CREEK
0.5 MI N CATHEDRAL OAKS, Santa Barbara, CA
Built 1956 Load: 18.5 t ADT: 4,090
SCOTLAND DR
FairOver: SARATOGA CREEK
NEAR SARATOGA AVE, Santa Clara, CA
Built 1958 Load: 18.5 t ADT: 4,220
GREEN VALLEY RD
FairOver: CORRALITOS CREEK
0.3 MI NE OF FREEDOM BLVD, Santa Cruz, CA
Built 1947 Load: 18.5 t ADT: 22,000
INTERSTATE 5 NB
FairOver: EAST CYPRESS AVE
02-SHA-005-R14.44-RDG, Shasta, CA
Built 1965 Load: 18.5 t ADT: 26,500
PONDEROSA WAY
FairOver: NORTH FORK BEAR CREEK
6.4 MI N OF S.R. 44, Shasta, CA
Built 1935 Load: 18.5 t ADT: 87
DERSCH RD
FairOver: LACK CREEK
3.2 MI S OF S.R. 44, Shasta, CA
Built 1962 Load: 18.5 t ADT: 896
STEEL BRIDGE RD
FairOver: BULLHOCK CREEK
0.7 MI SE OF BATEMAN RD., Shasta, CA
Built 1995 Load: 18.5 t ADT: 10
MOUNTAIN HOUSE RD
FairOver: WOODRUFF CREEK
0.5 MI S OF ROUTE 49, Sierra, CA
Built 1970 Load: 18.5 t ADT: 110
FRENCH CREEK ROAD
FairOver: NORTH FORK FRENCH CREEK
2.9 MI S OF SR 3, Siskiyou, CA
Built 1975 Load: 18.5 t ADT: 245
HILBORN ROAD
FairOver: PUTAH SOUTH CANAL
1/2 MI N WATERMAN BL, Solano, CA
Built 1978 Load: 18.5 t ADT: 6,546
COOPERSTOWN ROAD
FairOver: JOHNSON CREEK
1.5 MI NW LA GRANGE RD, Stanislaus, CA
Built 1922 Load: 18.5 t ADT: 35
HESSE RD
FairOver: REEDS CREEK
2.4 MI NORTH RIDGE ROAD, Tehama, CA
Built 1971 Load: 18.5 t ADT: 80
PLUM CREEK RD
FairOver: NORTH FORK PLUM CREEK
2.1 MI SE PAYNS CK LOP RD, Tehama, CA
Built 1974 Load: 18.5 t ADT: 350
STATE ROUTE 245
FairOver: COTTONWOOD CREEK
06-TUL-245-20.80, Tulare, CA
Built 1923 Load: 18.5 t ADT: 250
COUNTY ROAD 25
FairOver: COTTONWOOD SLOUGH
1.78 MI W OF CO RD 86A, Yolo, CA
Built 1932 Load: 18.5 t ADT: 25
STATE ROUTE 89
FairOver: MARKLEEVILLE CREEK
10-ALP-089-14.69, Alpine, CA
Built 1929 Load: 18.8 t ADT: 840
CARQUINEZ SCENIC D
FairOver: ECKLEY SLIDE
2.1 MI E I-80 IN CROCKETT, Contra Costa, CA
Built 1919 Load: 18.8 t ADT: 470
NORSE DR
FairOver: CONTRA COSTA CANAL
AT PASO NOGAL, Contra Costa, CA
Built 1972 Load: 18.8 t ADT: 800
SALMON FALLS RD
FairOver: SOUTH FK AMERICAN RIVER
4.5 MI S PILOT HILL, El Dorado, CA
Built 1953 Load: 18.8 t ADT: 1,900
WINDING ROAD
FairOver: MIDDLE FORK COSUMNES
NO DATA ENTERED, El Dorado, CA
Built 1969 Load: 18.8 t ADT: 25
N FRESNO ST
FairOver: HERNDON CANAL
S SR 101, Fresno, CA
Built 1959 Load: 18.8 t ADT: 13,444
CO RD #45
FairOver: SOUTH FORK WILLOW CREEK
0.25 MI W OF 99 W, Glenn, CA
Built 1965 Load: 18.8 t ADT: 27
ROAD 45
FairOver: GLENN-COLUSA CANAL
0.2 MI W ROAD 'P', Glenn, CA
Built 1948 Load: 18.8 t ADT: 497
WHITLOW ROAD
FairOver: SONOMA CREEK #2
2.4 MI E OF ELK CREEK RD, Humboldt, CA
Built 1966 Load: 18.8 t ADT: 53
WHITLOW ROAD
FairOver: SONOMA CREEK #1
2.2 MI E OF ELK CREEK RD, Humboldt, CA
Built 1966 Load: 18.8 t ADT: 53
FOREST ROAD
FairOver: SOUTH FORK EEL RIVER
0.1 MI W/O REDWOOD DR, Humboldt, CA
Built 1965 Load: 18.8 t ADT: 110
O&M Canal Roads
FairOver: All-American Canal
11 miles NE of Yuma, Imperial, CA
Built 1935 Load: 18.8 t ADT: 50
O&M Service Roads
FairOver: All-American Canal
8.3 miles north of Yuma, Imperial, CA
Built 1960 Load: 18.8 t ADT: 50
JACKSON AVE
FairOver: KINGS RIV (WEST CHANNEL)
1.5 MI W 21ST AVE, Kings, CA
Built 1922 Load: 18.8 t ADT: 750
EXCELSIOR AVE
FairOver: KINGS RIVER
0.3 MI W OF 16TH AVE, Kings, CA
Built 1948 Load: 18.8 t ADT: 3,430
CMP BNTA-PR FKS RD
FairOver: CATTLE CYN CRK
5.7MI E/O SAN GAB CYN RD, Los Angeles, CA
Built 1932 Load: 18.8 t ADT: 200
ROAD 225
FairOver: NORTH FORK WILLOW CREEK
0.1 MI W OF RD 274, Madera, CA
Built 1951 Load: 18.8 t ADT: 3,800
ROAD 35
FairOver: LITTLE DRY CREEK
0.2 MI N AVE 14, Madera, CA
Built 1973 Load: 18.8 t ADT: 500
DOGTOWN ROAD
FairOver: MAXWELL CREEK
0.2 MI E/O GREELEY HILL R, Mariposa, CA
Built 1944 Load: 18.8 t ADT: 120
U.S. HIGHWAY 101
FairOver: MCNAB CREEK
01-MEN-101-15.94, Mendocino, CA
Built 1942 Load: 18.8 t ADT: 13,800
STATE ROUTE 20
FairOver: CHAMBERLAIN CREEK
01-MEN-020-17.29, Mendocino, CA
Built 1948 Load: 18.8 t ADT: 2,600
MOUNTAIN HOUSE RD
FairOver: CUMMISKEY CREEK
2.2 MI N SR 128, Mendocino, CA
Built 1913 Load: 18.8 t ADT: 1,252
RG STATE PARK ROAD
FairOver: RUSSIAN GULCH
RUSSIAN GULCH STATE PARK, Mendocino, CA
Built 1953 Load: 18.8 t ADT: 15,000
SANTA RITA GRADE
FairOver: SAN JUAN CANAL
0.25 MI E OF ELGIN AVE, Merced, CA
Built 1950 Load: 18.8 t ADT: 327
NASON ROAD
FairOver: CACHAGUA CREEK
0.1 MI S CACHAGUA ROAD, Monterey, CA
Built 1945 Load: 18.8 t ADT: 200
PARK ROAD
FairOver: MCWAY CANYON
JULIA PFEIFFER BURNS S P, Monterey, CA
Built 1968 Load: 18.8 t ADT: 60
STATE ROUTE 121
FairOver: TULUCAY CREEK
04-NAP-121-6.42-NAP, Napa, CA
Built 1918 Load: 18.8 t ADT: 22,850
Showing 9,101-9,150 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.