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
QUITO RD
PoorOver: SAN TOMAS CREEK
SOUTH OF OLD ADOBE RD, Santa Clara, CA
Built 1915 Load: 20.7 t ADT: 6,740
STATE ROUTE 129
PoorOver: SALSIPUEDES CREEK
05-SCR-129-0.56, Santa Cruz, CA
Built 1938 Load: 20.7 t ADT: 10,000
STATE ROUTE 9
PoorOver: KINGS CREEK
05-SCR-009-15.49, Santa Cruz, CA
Built 1927 Load: 20.7 t ADT: 5,000
INTERSTATE 80
PoorOver: DAN WILSON CREEK
04-SOL-080-13.92, Solano, CA
Built 1951 Load: 20.7 t ADT: 202,000
NELSON SHIPPEE RD
PoorOver: WESTERN CANAL
0.6 MI E/O MIDWAY RD, Butte, CA
Built 1940 Load: 21.1 t ADT: 110
SALT CREEK RD
PoorOver: SALT CREEK
0.1 MI N/O REQUA RD, Del Norte, CA
Built 1975 Load: 21.1 t ADT: 5
S HUGHES AVE
PoorOver: HOUGHTON CANAL
AT/JSO NIELSEN AVE, Fresno, CA
Built 1925 Load: 21.1 t ADT: 5,867
THE OLD RD
PoorOver: SANTA CLARA RIV
0.3MI N/O MAGIC MTN PKWY, Los Angeles, CA
Built 1928 Load: 21.1 t ADT: 30,894
N SHORE DR, RD 432
PoorOver: NORTH FORK WILLOW CREEK
0.7 MI SE OF S SHORE DR, Madera, CA
Built 1953 Load: 21.1 t ADT: 2,000
MORAGA AVENUE
PoorOver: DELTA-MENDOTA CANAL
0.4 MI N HWY 152, Merced, CA
Built 1950 Load: 21.1 t ADT: 101
MANTHEY ROAD
PoorOver: SAN JOAQUIN RIVER
0.2 MI NE OF STEWART RD, San Joaquin, CA
Built 1926 Load: 21.1 t ADT: 750
TASMAN DR
PoorOver: CALABAZAS CREEK
E OF LAWRENCE EXPWY, Santa Clara, CA
Built 1976 Load: 21.1 t ADT: 10,400
N BIG TREES PRK RD
PoorOver: SAN LORENZO RIVER
H COWELL ST PK, Santa Cruz, CA
Built 1931 Load: 21.1 t ADT: 500
STATE ROUTE 104
PoorOver: SUTTER CREEK
10-AMA-104-R5.86-ION, Amador, CA
Built 1970 Load: 21.4 t ADT: 11,000
HUMBOLDT ROAD
PoorOver: DEAD HORSE SLOUGH DIVRSN
BTWN FOREST & EL MONTE, Butte, CA
Built 1957 Load: 21.4 t ADT: 3,500
SCHADD ROAD
PoorOver: FOREST CREEK
0.1 MI S OF BALD MTN RD, Calaveras, CA
Built 1993 Load: 21.4 t ADT: 34
ROAD 67
PoorOver: PACKARD DRAW
0.5 MI WEST OF ROAD Z, Glenn, CA
Built 1930 Load: 21.4 t ADT: 91
ROAD 67
PoorOver: HOWARD SLOUGH
1.7 MI EAST OF CR Z, Glenn, CA
Built 1950 Load: 21.4 t ADT: 93
MURPHY ROAD
PoorOver: TRES PINOS CREEK
EAST OF SR 25, San Benito, CA
Built 1960 Load: 21.4 t ADT: 200
STATE ROUTE 38
PoorOver: HATHAWAY CREEK
08-SBD-038-26.58, San Bernardino, CA
Built 1967 Load: 21.4 t ADT: 2,500
BARTON RD
PoorOver: UP RR & AMTRAK
0.5 MI W CALIFORNIA ST., San Bernardino, CA
Built 1972 Load: 21.4 t ADT: 24,760
BROOKSIDE AVE
PoorOver: MOREY ARROYO 1
0.3 MI NE TENNESEE ST, San Bernardino, CA
Built 1950 Load: 21.4 t ADT: 20,000
AIRPORT WAY
PoorOver: MORMON SLOUGH
0.2 MI N DR MLK JR BLVD, San Joaquin, CA
Built 1957 Load: 21.4 t ADT: 4,500
RIVER RD
PoorOver: MARK WEST CREEK
11.2 MI W OF SR 116, Sonoma, CA
Built 1958 Load: 21.4 t ADT: 8,000
MILTON ROAD
PoorOver: ROCK CREEK TRIBUTARY
3.7 MI N/O SR 4, Stanislaus, CA
Built 1918 Load: 21.4 t ADT: 716
ARCHER ROAD
PoorOver: SUTTER-BUTTE CANAL
0.3 MI E OF KENT ROAD, Sutter, CA
Built 1950 Load: 21.4 t ADT: 43
PERKINS AVE
PoorOver: UP RR
0.25 MI W BROWNING RD, Kern, CA
Built 1963 Load: 21.7 t ADT: 3,970
SANTA ANITA AVE
PoorOver: RIO HONDO
0.8MI W/O PECK RD, Los Angeles, CA
Built 1959 Load: 21.7 t ADT: 32,849
FRANCISQUITO AVE
PoorOver: WALNUT CRK
0.1MI S/O I-10 FWY, Los Angeles, CA
Built 1958 Load: 21.7 t ADT: 31,805
STUDEBAKER RD N/B
PoorOver: S CAL EDISON S CHAN
300FT S/O LOYNES DRIVE, Los Angeles, CA
Built 1966 Load: 21.7 t ADT: 38,584
BIRD ROAD
PoorOver: CALIFORNIA AQUEDUCT
0.5 MI N BLEWETT RD, San Joaquin, CA
Built 1966 Load: 21.7 t ADT: 3,491
SNTA RTA OLD CR RD
PoorOver: OLD CREEK
0.3 MI E CYPRESS MTN DR, San Luis Obispo, CA
Built 1940 Load: 21.7 t ADT: 249
FOREST HILL DR
PoorOver: BEAR CREEK
0.2 MI W BEAR CREEK RD, Santa Cruz, CA
Built 1961 Load: 21.7 t ADT: 1,200
SARTORI DR
PoorOver: ADOBE CREEK
0.2 MI SE CASA GRANDE AVE, Sonoma, CA
Built 1976 Load: 21.7 t ADT: 1,475
INTERSTATE 5 SB
PoorOver: INGRAM CREEK
10-STA-005-23.07, Stanislaus, CA
Built 1967 Load: 21.7 t ADT: 20,500
STATE ROUTE 20
PoorOver: SUTTER BYPASS
03-SUT-020-4.22, Sutter, CA
Built 1938 Load: 21.7 t ADT: 7,600
CAMPUS DR
PoorOver: LION CREEK TRIBUTARY
0.5 MI SE REDWOD RD, Alameda, CA
Built 1970 Load: 22.0 t ADT: 9,189
ORVLE CHICO HWY
PoorOver: DURHAM MUTUAL DITCH
0.9 MI N OF NEAL RD, Butte, CA
Built 1920 Load: 22.0 t ADT: 1,552
BRIONES VALLEY RD
PoorOver: BRIONES VALLEY CREEK
2.9 MI W DEER VALLEY RD, Contra Costa, CA
Built 2001 Load: 22.0 t ADT: 50
N FRUIT AVE
PoorOver: HOUGHTON CANAL
AT NIELSEN AVE, Fresno, CA
Built 1954 Load: 22.0 t ADT: 1,135
KUBLER RD
PoorOver: GREESON WASH
0.45 MI E/O BROCKMAN RD, Imperial, CA
Built 1940 Load: 22.0 t ADT: 100
6TH AVE
PoorOver: E BRANCH LAKELAND CANAL
3.3 MI S OF KANSAS AVE, Kings, CA
Built 1986 Load: 22.0 t ADT: 400
W10 & E10 BUSWAYS
PoorOver: RIO HONDO RIVER
07-LA-010S-28.33-EMTE, Los Angeles, CA
Built 1972 Load: 22.0 t ADT: 500
BADILLO ST
PoorOver: BIG DALTON WASH
0.1MI W/O PUENTE AVE, Los Angeles, CA
Built 1959 Load: 22.0 t ADT: 13,081
GILBERT DR
PoorOver: SHELTER CHANNEL
0.4 MI E/O ADMIRALTY DR, Orange, CA
Built 1963 Load: 22.0 t ADT: 900
BUCKMAN RD
PoorOver: DUCK CREEK BRANCH
0.8 MI N OF SR 4, San Joaquin, CA
Built 1931 Load: 22.0 t ADT: 13
US HIGHWAY 101 NB
PoorOver: ATASCADERO CREEK
05-SLO-101-45.72-ATAS, San Luis Obispo, CA
Built 1956 Load: 22.0 t ADT: 30,000
BERMUDA DR
PoorOver: FIESTA CHANNEL
SOUTH OF FIESTA DRIVE, San Mateo, CA
Built 1955 Load: 22.0 t ADT: 1,920
NB JEFFERSON BLVD
PoorOver: DEEP WATER CANAL
0.2 MI SOUTH OF STONE ST, Yolo, CA
Built 1960 Load: 22.0 t ADT: 17,439
WINDING ROAD
PoorOver: DINKEY CREEK
11S02-0.1, Fresno, CA
Built 1938 Load: 22.1 t ADT: 110
Showing 26,151-26,200 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 |