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
WHITE LANE
GoodOver: KERN ISLAND CANAL
EAST OF SOUTH 'H' ST, Kern, CA
Built 1964 Load: 24.3 t ADT: 26,300
MIL POTRERO HWY
GoodOver: SAN EMIGDIO CREEK
AT WOODLAND DR., Kern, CA
Built 1968 Load: 24.3 t ADT: 2,200
TEHACHAPI BLVD
GoodOver: WHITE ROCK CREEK
1.4 MI E TEHCHPI WILLOW S, Kern, CA
Built 1958 Load: 24.3 t ADT: 2,530
30TH STREET
GoodOver: KERN ISLAND CANAL
0.1 MI W UNION AVE, Kern, CA
Built 1968 Load: 24.3 t ADT: 2,309
GRAPEVINE ROAD
GoodOver: GRAPEVINE CREEK
6.7 MI S OF FORT TEJON SP, Kern, CA
Built 1950 Load: 24.3 t ADT: 100
TERRACE WAY
GoodOver: KERN ISLAND CNL CNTRL BR
0.1 MI W OF P ST, Kern, CA
Built 1952 Load: 24.3 t ADT: 4,062
STATE ROAD
GoodOver: CANAL LATERAL 29
SOUTH OF OLIVE DRIVE, Kern, CA
Built 1965 Load: 24.3 t ADT: 3,500
STATE ROUTE 43
GoodOver: PEOPLES DITCH
06-KIN-043-23.50, Kings, CA
Built 1916 Load: 24.3 t ADT: 10,200
14TH AVE
GoodOver: LAST CHANCE DITCH
0.6 MI N/O LACEY BLVD, Kings, CA
Built 1960 Load: 24.3 t ADT: 4,469
18TH AVE
GoodOver: E BR LEMOORE CANAL
0.1 MI SO JERSEY AVE, Kings, CA
Built 1972 Load: 24.3 t ADT: 1,500
UTICA AVE
GoodOver: LIBERTY FARMS SO CANAL
6.0 MI W 10TH AVE, Kings, CA
Built 1966 Load: 24.3 t ADT: 1,500
LACEY BLVD
GoodOver: W BR LAST CHANCE DITCH
0.4 MI E/O 16TH AVE, Kings, CA
Built 1958 Load: 24.3 t ADT: 5,298
QUEBEC AVE
GoodOver: SWEET CANAL
E/O MARCELLA AVE, Kings, CA
Built 1966 Load: 24.3 t ADT: 1,500
PUEBLO AVE
GoodOver: TULARE LAKE CANAL
AT 10TH AVE, Kings, CA
Built 1970 Load: 24.3 t ADT: 250
20 1/2 AVE
GoodOver: TULARE LAKE CANAL
0.7 MI N MADISON AVE, Kings, CA
Built 1965 Load: 24.3 t ADT: 200
20TH AVE
GoodOver: TULARE LAKE CANAL
0.5 MI N MADISON AVE, Kings, CA
Built 1965 Load: 24.3 t ADT: 200
U.S. HIGHWAY 395
GoodOver: STANDISH IRRIG. CANAL
02-LAS-395-62.19, Lassen, CA
Built 1936 Load: 24.3 t ADT: 2,975
STATE ROUTE 299
GoodOver: RAINES CREEK
02-LAS-299-2.45, Lassen, CA
Built 1931 Load: 24.3 t ADT: 1,500
STATE ROUTE 299
GoodOver: BIEBER CREEK
02-LAS-299-19.83, Lassen, CA
Built 1928 Load: 24.3 t ADT: 1,050
STATE ROUTE 299
GoodOver: WILLOW CREEK
02-LAS-299-24.01, Lassen, CA
Built 1929 Load: 24.3 t ADT: 1,050
STATE ROUTE 14
GoodOver: RED ROVER MINE ROAD
07-LA-014-R47.34, Los Angeles, CA
Built 1965 Load: 24.3 t ADT: 49,000
STATE ROUTE 14
GoodOver: RED ROVER MINE ROAD
07-LA-014-R47.34, Los Angeles, CA
Built 1965 Load: 24.3 t ADT: 49,000
SIERRA HWY
GoodOver: LOS ANGELES AQUEDUCT
07-LA-014U-T27.37, Los Angeles, CA
Built 1938 Load: 24.3 t ADT: 5,500
STATE ROUTE 39
GoodOver: N FORK SAN GABRIEL RIVER
07-LA-039-32.50, Los Angeles, CA
Built 1932 Load: 24.3 t ADT: 220
STATE ROUTE 1
GoodOver: MARINA DITCH
07-LA-001-30.70-LA, Los Angeles, CA
Built 1932 Load: 24.3 t ADT: 60,000
STATE ROUTE 1
GoodOver: BIXBY SLOUGH
07-LA-001-12.01-LA, Los Angeles, CA
Built 1934 Load: 24.3 t ADT: 50,000
STATE ROUTE 14
GoodOver: AVENUE "S"
07-LA-014-R58.17, Los Angeles, CA
Built 1966 Load: 24.3 t ADT: 84,000
INTERSTATE 110
GoodOver: STORM DRAIN
07-LA-110-R1.41-LA, Los Angeles, CA
Built 1956 Load: 24.3 t ADT: 72,000
STATE ROUTE 14
GoodOver: ANAVERDE CREEK
07-LA-014-R59.11-PMDL, Los Angeles, CA
Built 1966 Load: 24.3 t ADT: 84,000
INTERSTATE 605
GoodOver: FOSTER ROAD
07-LA-605-R7.34-NRW, Los Angeles, CA
Built 1966 Load: 24.3 t ADT: 297,000
WARDLOW RD
GoodOver: LOS CERRITOS DRN CH
0.3MI E/O CLARK AVE, Los Angeles, CA
Built 1962 Load: 24.3 t ADT: 12,463
HARVEY WAY
GoodOver: LOS CERRITOS DRN CHAN
0.4MI W/O BELLFLOWER BLVD, Los Angeles, CA
Built 1963 Load: 24.3 t ADT: 4,284
ARBOR RD
GoodOver: LOS CERRITOS DRN CHAN
0.4MI W/O BELLFLOWER BLVD, Los Angeles, CA
Built 1963 Load: 24.3 t ADT: 1,224
ATHERTON ST
GoodOver: STORM DRN #133
30FT W/O CLARK AVE, Los Angeles, CA
Built 1959 Load: 24.3 t ADT: 21,200
SEPULVEDA BLVD
GoodOver: FOX HILLS WASH
25FT S/O CENTINELA AVE, Los Angeles, CA
Built 1936 Load: 24.3 t ADT: 55,000
FIRESTONE BLVD
GoodOver: SILVERBOW STORM DRN
0.5MI SE/O SAN ANTONIO DR, Los Angeles, CA
Built 1934 Load: 24.3 t ADT: 26,842
SIERRA HWY
GoodOver: UNNAMED WASH
MM 4.00, Los Angeles, CA
Built 1921 Load: 24.3 t ADT: 4,141
SIERRA HWY
GoodOver: UNNAMED WASH
0.3MI N/O AVE E, Los Angeles, CA
Built 1921 Load: 24.3 t ADT: 3,838
SIERRA HWY
GoodOver: OBAN WASH
2.2MI S/O KERN CO LINE, Los Angeles, CA
Built 1921 Load: 24.3 t ADT: 3,838
THE OLD RD
GoodOver: GAVIN CYN CRK
0.1MI W/O I-5 FWY, Los Angeles, CA
Built 1928 Load: 24.3 t ADT: 10,841
CARSON ST
GoodOver: LOS CERRITOS DRN CHAN
0.4MI W/O BELLFLOWER BLVD, Los Angeles, CA
Built 1942 Load: 24.3 t ADT: 31,800
CARSON ST
GoodOver: PALO VERDE STORM DN
0.5MI E/O WOODRUFF AVE, Los Angeles, CA
Built 1950 Load: 24.3 t ADT: 29,786
CARSON ST
GoodOver: ARTESIA-NORWALK STORM DN
0.5MI E/O I-605 FWY, Los Angeles, CA
Built 1955 Load: 24.3 t ADT: 16,892
SOUTH ST
GoodOver: CLARK AVE DRN
0.5MI E/O LAKEWOOD BLVD, Los Angeles, CA
Built 1962 Load: 24.3 t ADT: 24,092
RIVERSIDE DR
GoodOver: CHINO CRK
0.3MI E/O TOWNE AVE, Los Angeles, CA
Built 1962 Load: 24.3 t ADT: 11,200
STAGE RD
GoodOver: LA MIRADA CHAN
0.5MI E/O VALLEY VIEW AVE, Los Angeles, CA
Built 1968 Load: 24.3 t ADT: 7,079
TELEGRAPH RD
GoodOver: SORENSON DRN
0.5MI E/O CARMENITA AVE, Los Angeles, CA
Built 1960 Load: 24.3 t ADT: 24,752
SANTA FE SPRINGS R
GoodOver: SORENSON DRN
1.0MI N/O TELEGRAPH RD, Los Angeles, CA
Built 1959 Load: 24.3 t ADT: 13,871
ALOSTA AVE
GoodOver: E BRANCH BIG DALTON WASH
1.2MI E/O GLENDORA AVE, Los Angeles, CA
Built 1968 Load: 24.3 t ADT: 30,352
EL SEGUNDO BLVD
GoodOver: DOMINGUEZ CHAN
100FT E/O CRENSHAW BLVD, Los Angeles, CA
Built 1966 Load: 24.3 t ADT: 26,857
Showing 18,301-18,350 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.