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
WARLAND DRIVE
FairOver: BOLSA CHICA CHANNEL
0.2 MI. W/O VALLEY VIEW, Orange, CA
Built 1991 Load: 14.9 t ADT: 2,000
4TH ST
FairOver: AUBURN RAVINE
400 FEET E OF EAST AVE, Placer, CA
Built 1923 Load: 14.9 t ADT: 12,500
BEACHCOMBER DR
FairOver: BEACH CREEK
0.3 MI SE OF RTE 1, San Luis Obispo, CA
Built 1925 Load: 14.9 t ADT: 339
NIPOMO ST
FairOver: STENNER CREEK
WEST OF PEACH ST, San Luis Obispo, CA
Built 1922 Load: 14.9 t ADT: 2,549
HOSPITAL DRIVE
FairOver: ATASCADERO CREEK
0.1MI SW INTXCAPISTRANO, San Luis Obispo, CA
Built 1921 Load: 14.9 t ADT: 2,700
CRYSTAL SPRINGS RD
FairOver: SAN MATEO CREEK
0.24 MI W OF SH 82, San Mateo, CA
Built 1901 Load: 14.9 t ADT: 3,630
MADERA LANE
FairOver: EL CORTE DE MADERA CRK
0.1 MI N OF SH 84, San Mateo, CA
Built 1920 Load: 14.9 t ADT: 16
SB 85-WB 237 RAMP
FairOver: STEVENS CREEK & TRAIL
04-SCL-085-R22.20-MVW, Santa Clara, CA
Built 1965 Load: 14.9 t ADT: 3,600
NEWELL RD
FairOver: SAN FRANCISQUITO CREEK
NEAR WOODLAND AVE, Santa Clara, CA
Built 1911 Load: 14.9 t ADT: 3,000
CROY RD
FairOver: CROY CREEK
3.0 MI W UVAS RD, Santa Clara, CA
Built 1924 Load: 14.9 t ADT: 300
HELLYER AVE
FairOver: COYOTE CREEK
0.01 MI E PALISADE DR, Santa Clara, CA
Built 1930 Load: 14.9 t ADT: 9,275
SOUTH E ST
FairOver: MATANZAS CREEK
BETWN TUPPER & SONOMA AVE, Sonoma, CA
Built 1935 Load: 14.9 t ADT: 11,100
EASTIN ROAD
FairOver: NEWMAN WASTEWAY
0.7 MI S/O SHIELLS RD, Stanislaus, CA
Built 1930 Load: 14.9 t ADT: 244
DAVIS ROAD
FairOver: DELTA-MENDOTA CANAL
0.6 MI NORTH OF FINK RD, Stanislaus, CA
Built 1944 Load: 14.9 t ADT: 58
WELTY ROAD
FairOver: DELTA-MENDOTA CANAL
1.3 MI S OF GAFFERY ROAD, Stanislaus, CA
Built 1949 Load: 14.9 t ADT: 124
HAMMETT ROAD
FairOver: M.I.D. LATERAL #6
0.05 MI N COVERT RD, Stanislaus, CA
Built 1925 Load: 14.9 t ADT: 2,284
GARMIRE RD
FairOver: MCCLATCHY SLOUGH
MCCLATCHY RD, Sutter, CA
Built 1923 Load: 14.9 t ADT: 381
TOWNSHIP ROAD
FairOver: GILSIZER SLOUGH
0.6 MI S OF OBANION RD, Sutter, CA
Built 1923 Load: 14.9 t ADT: 200
OHIO AVE
FairOver: JEWETT CREEK
1.2 MI E WISCONSIN AVE, Tehama, CA
Built 1925 Load: 14.9 t ADT: 150
BOWMAN RD
FairOver: MITCHELL GULCH
6.5 MI WEST OF I-5, Tehama, CA
Built 1967 Load: 14.9 t ADT: 3,205
RD 224 (WESTWOOD)
FairOver: FRIANT-KERN CANAL
0.4 MI SOUTH OF AVE 170, Tulare, CA
Built 1949 Load: 14.9 t ADT: 965
AVE 336 (10TH AVE)
FairOver: FRIANT-KERN CANAL
0.1 MI WEST OF ROAD 200, Tulare, CA
Built 1949 Load: 14.9 t ADT: 590
AVENUE 300
FairOver: FRIANT-KERN CANAL
0.25 MI EAST OF ROAD 200, Tulare, CA
Built 1949 Load: 14.9 t ADT: 100
AVENUE 280
FairOver: FRIANT-KERN CANAL
0.3 MI EAST OF ROAD 204, Tulare, CA
Built 1949 Load: 14.9 t ADT: 300
AVE 204 (6TH AVE)
FairOver: FRIANT-KERN CANAL
0.25 MI EAST OF ROAD 228, Tulare, CA
Built 1949 Load: 14.9 t ADT: 100
AVENUE 32
FairOver: FRIANT-KERN CANAL
0.02 MI WEST OF ROAD 184, Tulare, CA
Built 1949 Load: 14.9 t ADT: 150
AVENUE 48
FairOver: FRIANT-KERN CANAL
0.1 MI EAST OF ROAD 184, Tulare, CA
Built 1949 Load: 14.9 t ADT: 275
AVENUE 120
FairOver: FRIANT-KERN CANAL
AT ROAD 208, Tulare, CA
Built 1949 Load: 14.9 t ADT: 50
MOONEY GROVE PARK
FairOver: CAMERON CREEK
0.5 MI EAST OF 63, Tulare, CA
Built 1915 Load: 14.9 t ADT: 70
OLD WARDS FERRY RD
FairOver: CURTIS CREEK
3.3 MI S SANGUINETTI RD, Tuolumne, CA
Built 1914 Load: 14.9 t ADT: 502
CLARK FORK ROAD
FairOver: MIDDLE FK STANISLAUS RIV
0.7 MI NE OF SR 108, Tuolumne, CA
Built 1940 Load: 14.9 t ADT: 99
BROADWAY
FairOver: JACKSON CREEK
0.03 MI NW OF SR 88, Amador, CA
Built 1913 Load: 15.2 t ADT: 3,000
MILL ST
FairOver: LITTLE CHICO CREEK
0.1 MI N OF 12TH ST, Butte, CA
Built 1950 Load: 15.2 t ADT: 2,500
N RIVERBEND AVE
FairOver: ENTERPRISE CANAL
1 MI NORTH OF BELMONT AVE, Fresno, CA
Built 1952 Load: 15.2 t ADT: 850
LOS GATOS ROAD
FairOver: LOS GATOS CREEK
14.9 MI W OF DERRICK BL, Fresno, CA
Built 1948 Load: 15.2 t ADT: 100
ARLINGTON AVENUE
FairOver: FRANCIS CREEK
JUST W SR 211 IN FERNDALE, Humboldt, CA
Built 2001 Load: 15.2 t ADT: 500
POND RD
FairOver: FRIANT-KERN CANAL
0.3 MI EAST OF ZACHARY AV, Kern, CA
Built 1950 Load: 15.2 t ADT: 660
WARDLAW ST
FairOver: SAINT HELENA CREEK
0.15 MI E SR 29 IN MIDLTN, Lake, CA
Built 1908 Load: 15.2 t ADT: 114
PETERSON LANE
FairOver: ADOBE CREEK
0.5 MI W ADOBE CREEK RD, Lake, CA
Built 1950 Load: 15.2 t ADT: 23
WITTER SPRINGS RD
FairOver: COOPER CREEK
0.6 MI N OF SR 20, Lake, CA
Built 1935 Load: 15.2 t ADT: 212
ALONDRA BLVD
FairOver: LOS ANGELES RIV
0.1MI E/O I-710 FWY, Los Angeles, CA
Built 1958 Load: 15.2 t ADT: 27,756
SAN ANTONIO RD
FairOver: SOUTH SAN ANTONIO CREEK
0.6 MI N OF US 101, Marin, CA
Built 1917 Load: 15.2 t ADT: 200
BARBER AVE
FairOver: CORTE MADERA CREEK
0.1 MI E OF FRANCIS DRAKE, Marin, CA
Built 1930 Load: 15.2 t ADT: 1,500
CENTER BLVD
FairOver: SAN ANSELMO CREEK
AT SYCAMORE AVE, Marin, CA
Built 1940 Load: 15.2 t ADT: 14,000
BRIDGE AVE
FairOver: SAN ANSELMO CREEK
80M SW OF SIR FRANCIS DRK, Marin, CA
Built 1935 Load: 15.2 t ADT: 9,000
ALEXANDER AVE
FairOver: ABANDONED NWP RR ROW
0.1 MI E OF MAGNOLIA AVE, Marin, CA
Built 1925 Load: 15.2 t ADT: 1,570
ORR SPRINGS RD
FairOver: SOUTH FORK BIG RIVER
13.5 MI W US 101, Mendocino, CA
Built 1971 Load: 15.2 t ADT: 134
41N11
FairOver: JOHNSON CREEK
NO DATA ENTERED, Modoc, CA
Built 1972 Load: 15.2 t
ROBINSON CYN RD
FairOver: LAS GAZAS CREEK
6.5 MI S CARMEL VALLEY RD, Monterey, CA
Built 1947 Load: 15.2 t ADT: 3,600
GRANT ST
FairOver: GARNETT CREEK
0.2 MI SE GREENWOOD AVE, Napa, CA
Built 1918 Load: 15.2 t ADT: 1,000
Showing 8,101-8,150 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.