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
HOEN AVENUE
GoodOver: SPRING CREEK
0.3 M SOUTH OF SONOMA AVE, Sonoma, CA
Built 1955 Load: 43.4 t ADT: 2,000
STATE ROUTE 99 SB
GoodOver: GARDEN HWY
03-SUT-099-11.98, Sutter, CA
Built 1958 Load: 43.4 t ADT: 8,050
STATE ROUTE 36
GoodOver: HAYFORK CREEK
02-TRI-036-R38.37, Trinity, CA
Built 1965 Load: 43.4 t ADT: 300
INTERSTATE 405
GoodOver: VAN OWEN STREET
07-LA-405-41.86-LA, Los Angeles, CA
Built 1963 Load: 43.5 t ADT: 220,000
J ST. (S BEALE RD)
GoodOver: HUTCHINSON CREEK
0.5 MILES NORTH OF S. BEA, Yuba, CA
Built 2017 Load: 43.5 t ADT: 750
INTERSTATE 580 WB
GoodOver: MIDWAY ROAD
04-ALA-580-L1.04R, Alameda, CA
Built 1966 Load: 43.7 t ADT: 29,333
STATE ROUTE 49
GoodOver: JACKSON CREEK
10-AMA-049-4.10-JKN, Amador, CA
Built 1948 Load: 43.7 t ADT: 19,800
STATE ROUTE 96
GoodOver: PEARCH CREEK
01-HUM-096-R39.48, Humboldt, CA
Built 1974 Load: 43.7 t ADT: 400
TUTTLE CREEK RD
GoodOver: LOS ANGELES AQUEDUCT
1.1 MI S WHTNY PORTAL RD, Inyo, CA
Built 1981 Load: 43.7 t ADT: 153
ZERKER RD
GoodOver: CALLOWAY BYPASS CANAL
1.8 MI N 7TH STANDARD RD, Kern, CA
Built 1961 Load: 43.7 t ADT: 2,650
INTERSTATE 5
GoodOver: GORMAN CREEK
07-LA-005-R80.79, Los Angeles, CA
Built 1967 Load: 43.7 t ADT: 35,890
STATE ROUTE 2 EB
GoodOver: ROSEBUD AVE
07-LA-002-14.84-LA, Los Angeles, CA
Built 1962 Load: 43.7 t ADT: 30,500
VIA MARISOL
GoodOver: ARROYO SECO
50 FT E OF SR 110, Los Angeles, CA
Built 1940 Load: 43.7 t ADT: 9,500
BARRANCA AVE
GoodOver: SAN DIMAS WASH BRIDGE
0.1MI S/O ARROW HWY, Los Angeles, CA
Built 1959 Load: 43.7 t ADT: 18,485
MERCED AVE
GoodOver: WALNUT CRK
60FT W/O ORANGE AVE, Los Angeles, CA
Built 1961 Load: 43.7 t ADT: 11,726
ORANGE AVE
GoodOver: WALNUT CRK
50FT N/O MERCED AVE, Los Angeles, CA
Built 1961 Load: 43.7 t ADT: 25,633
AVE SCOTT
GoodOver: SAN FRANCISQUITO CYN CH
0.1MI W/O MCBEAN PRKWY, Los Angeles, CA
Built 2001 Load: 43.7 t ADT: 15,735
SHERLOCK ROAD
GoodOver: SAXON CREEK
1.5 MI W OF COLORADO RD, Mariposa, CA
Built 1972 Load: 43.7 t ADT: 50
STATE ROUTE 20
GoodOver: COLD CREEK
01-MEN-020-R40.85, Mendocino, CA
Built 1967 Load: 43.7 t ADT: 10,400
INTERSTATE 15 NB
GoodOver: HORSETHIEF CANYON WASH
08-RIV-015-29.13, Riverside, CA
Built 1980 Load: 43.7 t ADT: 61,000
RILEY RD
GoodOver: N FORK BADGER CREEK
1.1 MI N/O ARNO RD, Sacramento, CA
Built 1986 Load: 43.7 t ADT: 1,684
MILL ST
GoodOver: BNSF RY, AMTRAK, UP RR
1.2 MI W/O I-215, San Bernardino, CA
Built 1978 Load: 43.7 t ADT: 17,461
EL CAMINO REAL RD
GoodOver: UNNAMED CREEK
0.3 KM N OF STUART MESA R, San Diego, CA
Built 2011 Load: 43.7 t ADT: 750
W8-NB MORENA OFFRP
GoodOver: PEDESTRIAN WALKWAY
11-SD-008-R0.38-SD, San Diego, CA
Built 1969 Load: 43.7 t ADT: 7,100
INTERSTATE 580 EB
GoodOver: HOSPITAL CREEK
10-SJ-580-0.49, San Joaquin, CA
Built 1967 Load: 43.7 t ADT: 11,000
INTERSTATE 580 WB
GoodOver: HOSPITAL CREEK
10-SJ-580-0.48, San Joaquin, CA
Built 1967 Load: 43.7 t ADT: 11,000
STATE ROUTE 49
GoodOver: HILLSIDE
03-SIE-049-15.69, Sierra, CA
Built 1986 Load: 43.7 t ADT: 600
ROAD 21N02
GoodOver: SULPHUR CREEK
SULPHUR CREEK, Sierra, CA
Built 1964 Load: 43.7 t ADT: 50
INDEPENDENCE ROAD
GoodOver: KLAMATH RIVER
CLEAR CREEK, Siskiyou, CA
Built 1966 Load: 43.7 t ADT: 50
HAWKINS ROAD
GoodOver: ULATIS CREEK
1.4 MI W OF RTE 113, Solano, CA
Built 1964 Load: 43.7 t ADT: 801
ASHWELL WAY
GoodOver: SEASONAL CREEK
JUST E OF HIDDENBROOKE, Solano, CA
Built 2002 Load: 43.7 t ADT: 100
STATE ROUTE 33
GoodOver: ROUND SPRINGS CREEK
07-VEN-033-50.91, Ventura, CA
Built 1959 Load: 43.7 t ADT: 290
STATE ROUTE 33
GoodOver: CORRAL CANYON CREEK
07-VEN-033-51.78, Ventura, CA
Built 1959 Load: 43.7 t ADT: 290
ALVARADO-NILES RD
GoodOver: DRY CREEK
0.3 MI E/O CENTRAL AVE, Alameda, CA
Built 1957 Load: 44.1 t ADT: 36,400
STATE ROUTE 149 NB
GoodOver: DRY CREEK
03-BUT-149-R3.50, Butte, CA
Built 1975 Load: 44.1 t ADT: 6,875
REDWOOD WAY
GoodOver: STRONGS CREEK
1/2 MI E FORTUNA BL, Humboldt, CA
Built 1988 Load: 44.1 t ADT: 4,353
INTERSTATE 10
GoodOver: CHARTER OAK WASH
07-LA-010-37.61-WCOV, Los Angeles, CA
Built 1934 Load: 44.1 t ADT: 223,000
INTERSTATE 10
GoodOver: WALNUT CREEK CHANNEL
07-LA-010-38.32-WCOV, Los Angeles, CA
Built 1932 Load: 44.1 t ADT: 223,000
W2-S5 CONNECTOR RA
GoodOver: RIPPLE STREET
07-LA-002-15.32-LA, Los Angeles, CA
Built 1961 Load: 44.1 t ADT: 34,700
E FRK RD
GoodOver: GRAVEYARD CYN CRK
2.7MI E/O SAN GABRL CN RD, Los Angeles, CA
Built 1942 Load: 44.1 t ADT: 2,000
TEMPLE AVE
GoodOver: SAN JOSE CRK
0.3MI W/O VALLEY BLVD, Los Angeles, CA
Built 1961 Load: 44.1 t ADT: 29,900
LONGDEN AVE
GoodOver: EATON WASH
0.5MI E/O SN GABRIEL BLVD, Los Angeles, CA
Built 1957 Load: 44.1 t ADT: 4,386
FULTON AVE
GoodOver: LOS ANGELES RIVER
VLYHT DR N & VLYHT DR S, Los Angeles, CA
Built 1951 Load: 44.1 t ADT: 12,400
INTERSTATE 15 SB
GoodOver: HORSETHIEF CANYON WASH
08-RIV-015-29.13, Riverside, CA
Built 1980 Load: 44.1 t ADT: 61,000
16TH ST
GoodOver: RIO LINDA CREEK
0.1 MI N OF E ST, Sacramento, CA
Built 1986 Load: 44.1 t ADT: 10,000
HAVENSIDE DR
GoodOver: MAIN CANAL
0.4 MI SOUTH FLORIN RD, Sacramento, CA
Built 1980 Load: 44.1 t ADT: 4,231
INTERSTATE 15 SB
GoodOver: MIDWAY DITCH
08-SBD-015-R107.12, San Bernardino, CA
Built 1964 Load: 44.1 t ADT: 22,000
INTERSTATE 15 NB
GoodOver: MIDWAY DITCH
08-SBD-015-R107.12, San Bernardino, CA
Built 1964 Load: 44.1 t ADT: 22,000
DURHAM FERRY ROAD
GoodOver: BANTA-CARBONA IRR CANAL
0.3 MI E BIRD RD, San Joaquin, CA
Built 1947 Load: 44.1 t ADT: 495
STATE ROUTE 41
GoodOver: ATASCADERO CREEK
05-SLO-041-13.29-ATAS, San Luis Obispo, CA
Built 1990 Load: 44.1 t ADT: 9,700
Showing 25,001-25,050 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 |