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
WINTER GARDENS BL
GoodOver: SAN DIEGO RIVER TRIB
620 FT S/O WOODSIDE AVE, San Diego, CA
Built 1966 Load: 24.3 t ADT: 12,825
ROYAL OAK RD
GoodOver: CAMPO CREEK
150 FT EAST OF OLD HWY 80, San Diego, CA
Built 1960 Load: 24.3 t ADT: 132
EL NOPAL
GoodOver: STORM DRAIN
120 FT E/O LOS RANCHITOS, San Diego, CA
Built 1971 Load: 24.3 t ADT: 6,300
MIMOSA AVE.
GoodOver: AQUA HEDIONDA CREEK
0.25 M W/O SMILAX RD, San Diego, CA
Built 1961 Load: 24.3 t ADT: 494
RAINBOW GLEN ROAD
GoodOver: RAINBOW CREEK
0.15M NW/O ROUTE 15, San Diego, CA
Built 1970 Load: 24.3 t ADT: 426
CAMPO ROAD
GoodOver: SPRING VALLEY CREEK
350 FT E/O BANCROFT RD, San Diego, CA
Built 1965 Load: 24.3 t ADT: 8,694
BORREGOSALTONSEAWY
GoodOver: ARROYO SALADA WASH TRIB,
10.9 MI W/O SR 86., San Diego, CA
Built 1950 Load: 24.3 t ADT: 1,100
MAIN ST.
GoodOver: OTAY RIVER TRIBUTARY
0.13MI E/O 4TH AVE., San Diego, CA
Built 1965 Load: 24.3 t ADT: 37,800
PEARSON RD
GoodOver: PIXLEY SLOUGH
0.7 MI N MORSE RD, San Joaquin, CA
Built 1970 Load: 24.3 t ADT: 415
BUENA VISTA ROAD
GoodOver: MURPHY CREEK
2.1 MI EAST TO S.H. 88, San Joaquin, CA
Built 1960 Load: 24.3 t ADT: 91
KAISER ROAD
GoodOver: SOUTH BRANCH WEBER CREEK
0.5 MI S MARIPOSA RD, San Joaquin, CA
Built 1970 Load: 24.3 t ADT: 276
KAISER ROAD
GoodOver: NORTH BRANCH WEBER CREEK
0.2 MI S MARIPOSA RD, San Joaquin, CA
Built 1970 Load: 24.3 t ADT: 235
WAVERLY RD
GoodOver: CHANNEL B
0.2 MI N OF FLOOD RD, San Joaquin, CA
Built 1961 Load: 24.3 t ADT: 249
MICKE GROVE RD
GoodOver: PIXLEY CREEK
0.7 MI S ARMSTRONG RD, San Joaquin, CA
Built 1970 Load: 24.3 t ADT: 1,079
DUNCAN RD
GoodOver: CHANNEL B
0.3 MI N COPPEROPOLIS RD, San Joaquin, CA
Built 1963 Load: 24.3 t ADT: 353
U.S. HIGHWAY 101
GoodOver: SANTA MARGARITA CREEK
05-SLO-101-36.58, San Luis Obispo, CA
Built 1916 Load: 24.3 t ADT: 43,000
I STREET
GoodOver: YERBA BUENA CREEK
0.05 MI S/W OF S.R. 58, San Luis Obispo, CA
Built 1950 Load: 24.3 t ADT: 100
ESTRELLA RD
GoodOver: RANCHITA CANYON CREEK
0.5 MI E PLEASANT RD, San Luis Obispo, CA
Built 1940 Load: 24.3 t ADT: 529
PREFUMO CANYON RD
GoodOver: PREFUMO CANYON CREEK
0.9 MI SW LOS OSOS VLY RD, San Luis Obispo, CA
Built 1969 Load: 24.3 t ADT: 300
EL CAMINO REAL
GoodOver: E BRA ATASCADERO CRK
0.12 MI SE OF SR 41, San Luis Obispo, CA
Built 1965 Load: 24.3 t ADT: 10,200
U.S. HIGHWAY 101
GoodOver: BELMONT CREEK
04-SM-101-9.11-BMT, San Mateo, CA
Built 1930 Load: 24.3 t ADT: 195,000
INDUSTRIAL WAY
GoodOver: BELMONT CREEK
SOUTH HARBOR BLVD, San Mateo, CA
Built 1950 Load: 24.3 t ADT: 4,592
MARINE PKWY
GoodOver: BELMONT SLOUGH
EAST OF S.H. 101, San Mateo, CA
Built 1968 Load: 24.3 t ADT: 8,200
DELAWARE ST
GoodOver: FIESTA CHANNEL
0.3 MI S OF SH 92, San Mateo, CA
Built 1953 Load: 24.3 t ADT: 14,280
MARSH RD
GoodOver: MARSH SLOUGH
MARSH RD AT ROLISON, San Mateo, CA
Built 1960 Load: 24.3 t ADT: 5,300
ROAD-1 SOUTH
GoodOver: PEDESTRIAN WALKWAY
TERMINAL 3 - AREA F, San Mateo, CA
Built 1973 Load: 24.3 t ADT: 12,930
STATE PARK RD
GoodOver: PESCADERO CREEK
PORTOLA STATE PARK, San Mateo, CA
Built 2009 Load: 24.3 t ADT: 6
STATE ROUTE 154
GoodOver: BRANCH COTA CREEK
05-SB-154-R6.94, Santa Barbara, CA
Built 1936 Load: 24.3 t ADT: 9,000
GLEN ANNIE RD
GoodOver: GLEN ANNIE CREEK
1.2 MI N/O HOLLISTER AVE, Santa Barbara, CA
Built 1966 Load: 24.3 t ADT: 470
BLOSSER ROAD
GoodOver: ORCUTT CREEK
N OF CLARK AVE, Santa Barbara, CA
Built 1970 Load: 24.3 t ADT: 1,855
CATHEDRAL OAKS RD
GoodOver: GLEN ANNIE CREEK
0.04 MI W GLEN ANNIE RD, Santa Barbara, CA
Built 1965 Load: 24.3 t ADT: 9,656
MCMURRAY RD
GoodOver: ZACA CREEK
AT DAMASSA ST, Santa Barbara, CA
Built 1970 Load: 24.3 t ADT: 3,100
E CLARK AVENUE
GoodOver: ORCUTT CREEK
JUST WEST OF SR 135, Santa Barbara, CA
Built 1966 Load: 24.3 t ADT: 21,656
STATE ROUTE 152
GoodOver: MILLER SLOUGH
04-SCL-152-M9.62-GIL, Santa Clara, CA
Built 1941 Load: 24.3 t ADT: 15,800
STATE ROUTE 237
GoodOver: PENITENCIA CREEK
04-SCL-237-T9.85-MPS, Santa Clara, CA
Built 1962 Load: 24.3 t ADT: 73,000
STATE ROUTE 237
GoodOver: BERRYESSA CREEK
04-SCL-237-10.84-MPS, Santa Clara, CA
Built 1970 Load: 24.3 t ADT: 73,000
GRANT ROAD
GoodOver: PERMANENTE CREEK
JSP PRESTON DRIVE, Santa Clara, CA
Built 1959 Load: 24.3 t ADT: 18,000
ELENA RD
GoodOver: ADOBE CREEK
BTWN MOODY RD & MONTE RD, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 10,000
MORRILL AVE
GoodOver: BERRYESSA CREEK
NEAR CROPLEY AVE, Santa Clara, CA
Built 1970 Load: 24.3 t ADT: 2,700
CROPLEY LN
GoodOver: BERRYESSA CREEK
W OF MORRILL AVE, Santa Clara, CA
Built 1970 Load: 24.3 t ADT: 7,850
PENITENCIA CR RD
GoodOver: UPPER PENITENCIA CREEK
0.7 MI NE CAPITOL AVE, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 4,050
HILLSDALE AVE
GoodOver: CANOAS CREEK
1 MI EAST ALMADEN RD, Santa Clara, CA
Built 1974 Load: 24.3 t ADT: 8,200
VIRGINIA AVE
GoodOver: SAN TOMAS AQUINO CREEK
BUDD AVE, Santa Clara, CA
Built 1970 Load: 24.3 t ADT: 2,704
BOLLINGER RD
GoodOver: SARATOGA CREEK
NEAR LAWRENCE EXPWY, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 27,000
STEVENS CYN RD
GoodOver: STEVENS CREEK
3.6 MI S/O MT EDEN RD, Santa Clara, CA
Built 1952 Load: 24.3 t ADT: 230
SERRA WAY
GoodOver: PENITENCIA CREEK
AT ABEL ST, Santa Clara, CA
Built 1962 Load: 24.3 t ADT: 11,434
JUNIPERO DRIVE
GoodOver: PENITENCIA CREEK
AT ABEL ST, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 1,465
SYLVIA DR
GoodOver: PENITENCIA CREEK
NEAR ABEL ST, Santa Clara, CA
Built 1965 Load: 24.3 t ADT: 433
MURIETTA LANE
GoodOver: ADOBE CREEK
SOUTH OF MOODY ROAD, Santa Clara, CA
Built 1978 Load: 24.3 t ADT: 800
STATE ROUTE 9 NB
GoodOver: HILLSIDE
05-SCR-009-3.67, Santa Cruz, CA
Built 1922 Load: 24.3 t ADT: 5,000
Showing 18,701-18,750 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.