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
LAWRENCE ROAD
PoorOver: SOUTH FORK COSUMNES RIV
EL DORADO CO LINE, Amador, CA
Built 1960 Load: 22.4 t ADT: 25
SAN PABLO AVE
PoorOver: BNSF RY AND AMTRAK
WEST OF CAROL LANE, Contra Costa, CA
Built 1938 Load: 22.4 t ADT: 10,300
MINER RD
PoorOver: SAN PABLO CREEK
AT CAMINO PABLO, Contra Costa, CA
Built 1931 Load: 22.4 t ADT: 6,368
RD 311
PoorOver: DEEP CUT (BAXTER) CREEK
1.1 MI E/O A3, Lassen, CA
Built 1978 Load: 22.4 t ADT: 100
MOORE AVE
PoorOver: WEST BRANCH RUSSIAN RIV
0.1 MI E JCT N STATE ST, Mendocino, CA
Built 1958 Load: 22.4 t ADT: 2,776
HIRSCHDALE RD
PoorOver: UP RR, BNSF RY, & AMTRAK
2.5 MI S OF BOCA, Nevada, CA
Built 1926 Load: 22.4 t ADT: 70
NAT TRAILS HWY
PoorOver: LAMEGO DITCH
4.3 MI E KELBAKER RD, San Bernardino, CA
Built 1930 Load: 22.4 t ADT: 502
INTERSTATE 5 SB
PoorOver: NCTD,BNSF & AMTRAK,SCRRA
11-SD-005-R55.39L-OCN, San Diego, CA
Built 1967 Load: 22.4 t ADT: 96,000
US HIGHWAY 101 SB
PoorOver: SANTA MARGARITA CREEK
05-SLO-101-37.99, San Luis Obispo, CA
Built 1956 Load: 22.4 t ADT: 21,000
BUENA VISTA DRIVE
PoorOver: HARKINS SLOUGH
30' S LARKIN VALLEY RD, Santa Cruz, CA
Built 1950 Load: 22.4 t ADT: 6,000
INTERSTATE 5 SB
PoorOver: INGRAM CREEK ROAD
10-STA-005-22.99, Stanislaus, CA
Built 1967 Load: 22.4 t ADT: 20,500
SACRAMENTO AVE
PoorOver: SUTTER BYPASS E CHANNEL
1.1 MI WEST OF SR 99, Sutter, CA
Built 1975 Load: 22.4 t ADT: 334
GRANT LINE ROAD
PoorOver: DELTA-MENDOTA CANAL
1.8 MI NE OF I 580, Alameda, CA
Built 1948 Load: 22.7 t ADT: 5,100
ATLANTIC AVE
PoorOver: LOS ANGELES RIV
0.5MI S/O ALONDRA BLVD, Los Angeles, CA
Built 1937 Load: 22.7 t ADT: 23,298
ROAD 200
PoorOver: LITTLE FINE GOLD CREEK
14.1 MI NE STATE RTE 41, Madera, CA
Built 1958 Load: 22.7 t ADT: 800
STATE ROUTE 1
PoorOver: ALBION RIVER
01-MEN-001-43.74, Mendocino, CA
Built 1944 Load: 22.7 t ADT: 2,100
BUHACH ROAD
PoorOver: LIVINGSTON CANAL
0.3 MI N JUNIPER AVENUE, Merced, CA
Built 1965 Load: 22.7 t ADT: 9,555
LIMEKILN ROAD
PoorOver: PESCADERO CREEK
0.1 MI S CIENEGA RD, San Benito, CA
Built 1980 Load: 22.7 t ADT: 500
MAIN ST
PoorOver: CHOLLAS CREEK
0.12M S/O 32ND ST, San Diego, CA
Built 1937 Load: 22.7 t ADT: 18,545
INTERSTATE 5 NB
PoorOver: WEBER,PERSHING,FREMONT
10-SJ-005-26.47-STKN, San Joaquin, CA
Built 1972 Load: 22.7 t ADT: 56,500
INTERSTATE 5 NB
PoorOver: OAK FLAT ROAD
10-STA-005-12.53, Stanislaus, CA
Built 1967 Load: 22.7 t ADT: 18,000
LAS PALMAS AVENUE
PoorOver: SAN JOAQUIN RIVER
3 MI N/E STATE ROUTE 33, Stanislaus, CA
Built 1959 Load: 22.7 t ADT: 12,585
WEST LANE
PoorOver: BEAR CREEK
1.6 MI N HAMMER LANE, San Joaquin, CA
Built 1966 Load: 23.0 t ADT: 14,064
STATE ROUTE 166
PoorOver: BRANCH CANYON
05-SB-166-64.19, Santa Barbara, CA
Built 1943 Load: 23.0 t ADT: 4,500
INTERSTATE 5 NB
PoorOver: INGRAM CREEK ROAD
10-STA-005-22.99, Stanislaus, CA
Built 1967 Load: 23.0 t ADT: 20,500
1ST STREET
PoorOver: ARROYO SIMI
.1 MI S/O LOS ANGELES AV, Ventura, CA
Built 1971 Load: 23.0 t ADT: 22,500
CR A21 / MOONEY RD
PoorOver: ROBBERS CREEK
0.5 MI SW OF SR 36, Lassen, CA
Built 1975 Load: 23.3 t ADT: 1,500
DEER PARK ROAD
PoorOver: NAPA RIVER
0.5 MI NE SR 29, Napa, CA
Built 1966 Load: 23.3 t ADT: 3,115
YANONALI STREET
PoorOver: LAGUNA DRAINAGE CHANNEL
0.1 MI EAST OF GARDEN ST, Santa Barbara, CA
Built 1994 Load: 23.3 t ADT: 8,100
INTERSTATE 80
PoorOver: GREEN VALLEY CREEK
04-SOL-080-12.91-FRFD, Solano, CA
Built 1928 Load: 23.3 t ADT: 189,000
INTERSTATE 5 SB
PoorOver: OAK FLAT ROAD
10-STA-005-12.53, Stanislaus, CA
Built 1967 Load: 23.3 t ADT: 18,000
ROAD 16
PoorOver: HOMELAND CANAL
1.0 MI N OF AVENUE 56, Tulare, CA
Built 1942 Load: 23.3 t ADT: 175
PENTZ ROAD
PoorOver: BERRY CANYON
3.1 MI EAST OF SR 99, Butte, CA
Built 1970 Load: 23.7 t ADT: 7,146
W580-CENTRAL OFF
PoorOver: CENTRAL AVE
04-CC-580-0.04-RCH, Contra Costa, CA
Built 1991 Load: 23.7 t ADT: 4,300
DIABLO ROAD
PoorOver: SAN RAMON CREEK
0.2 MI WEST OF I-680, Contra Costa, CA
Built 1966 Load: 23.7 t ADT: 21,350
ALBEE CK CAMP
PoorOver: ALBEE CREEK
HUMBOLDT REDWOOD ST. PK., Humboldt, CA
Built 1986 Load: 23.7 t ADT: 10
STATE ROUTE 99 SB
PoorOver: BEAR CREEK
10-MER-099-16.38-MER, Merced, CA
Built 1962 Load: 23.7 t ADT: 25,500
VINEYARD CANYON RD
PoorOver: CHOLAME CREEK
0.1 MI W SLACKS CANYON RD, Monterey, CA
Built 1950 Load: 23.7 t ADT: 210
SILVERADO CANYN RD
PoorOver: SILVERADO CANYON CREEK
4.9 MI. E/O SANTIAGO ROAD, Orange, CA
Built 1947 Load: 23.7 t ADT: 2,000
INTERSTATE 10 EB
PoorOver: COACHELLA CANAL
08-RIV-010-R60.40-COA, Riverside, CA
Built 1947 Load: 23.7 t ADT: 11,250
JOHNSON ROAD
PoorOver: CALIFORNIA AQUEDUCT
1.2 MI S OF PALMDALE RD, San Bernardino, CA
Built 1971 Load: 23.7 t ADT: 1,835
TWO BAR RD
PoorOver: TWO BAR CREEK
2.7 MI E OF SR 9, Santa Cruz, CA
Built 1959 Load: 23.7 t ADT: 200
STATE ROUTE 49
PoorOver: SALMON CREEK
03-SIE-049-R32.90, Sierra, CA
Built 1964 Load: 23.7 t ADT: 800
SR 1
PoorOver: BIG SYCAMORE CREEK
07-VEN-001-4.54, Ventura, CA
Built 1938 Load: 23.7 t ADT: 11,600
CRYSTAL SPRGS CAMP
PoorOver: WEST FORK CARSON RIVER
0.1 MILE SOUTH OF S.H. 88, Alpine, CA
Built 1938 Load: 24.0 t ADT: 275
OAK DR
PoorOver: OLD TOPANGA CRK
0.1MI N/O OLD TOPANGA RD, Los Angeles, CA
Built 1928 Load: 24.0 t ADT: 870
STATE ROUTE 140
PoorOver: MILES CREEK
10-MPA-140-3.64, Mariposa, CA
Built 1928 Load: 24.0 t ADT: 4,650
INTERSTATE 5 SB
PoorOver: NIELS HANSON RD
10-STA-005-14.94, Stanislaus, CA
Built 1967 Load: 24.0 t ADT: 18,000
HEGENBERGER RD
PoorOver: SAN LEANDRO CREEK
SOUTH LEET DR, Alameda, CA
Built 1968 Load: 24.3 t ADT: 46,294
HEGENBERGER RD
PoorOver: ELMHURST CREEK
0.3 MI N COLISEUM WAY, Alameda, CA
Built 1966 Load: 24.3 t ADT: 46,294
Showing 26,201-26,250 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 |