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
LOS GATOS ROAD
GoodOver: LOS GATOS CREEK
11.31 MI W OF DERRICK BL, Fresno, CA
Built 1974 Load: 60.6 t ADT: 200
AUBURN BOULEVARD
GoodOver: BROOKTREE CREEK
0.05 MI N MANZANITA AVE, Sacramento, CA
Built 1927 Load: 60.6 t ADT: 26,461
UNION SCHOOL ROAD
GoodOver: WEST FORK STILLWATER CRK
0.2 MI W OLD OREGON TRAIL, Shasta, CA
Built 1968 Load: 60.6 t ADT: 1,175
GAVIN MANDRY DRIVE
GoodOver: BEST SLOUGH CREEK
2.0 MILES EAST OF INTERSE, Yuba, CA
Built 2022 Load: 60.8 t ADT: 400
RAMONA ST
GoodOver: PINOLE CREEK
0.1 MI E OF PINOLE VAL RD, Contra Costa, CA
Built 1971 Load: 60.9 t ADT: 1,500
LOS GATOS ROAD
GoodOver: LOS GATOS CREEK
11.14 MI W OF DERRICK BL, Fresno, CA
Built 1974 Load: 60.9 t ADT: 200
INTERSTATE 505
GoodOver: CHICKAHOMINY SLOUGH
03-YOL-505-3.37, Yolo, CA
Built 1980 Load: 60.9 t ADT: 12,000
PARKRIDGE AVENUE
GoodOver: NORTH NORCO CHANNEL
0.12 MI. S/O SECOND ST., Riverside, CA
Built 1979 Load: 61.2 t ADT: 3,437
INTERSTATE 8 EB
GoodOver: LAS BANCAS RD
11-SD-008-R40.84R, San Diego, CA
Built 1974 Load: 61.2 t ADT: 9,800
SB US HIGHWAY 101
GoodOver: UP RR & AMTRAK
04-SCL-101-R5.10, Santa Clara, CA
Built 1973 Load: 61.2 t ADT: 26,000
LEBEC ROAD
GoodOver: CUDDY CREEK
0.06 MI N FRAZIER MTN RD, Kern, CA
Built 1982 Load: 61.6 t ADT: 3,800
GORGE RD
GoodOver: LAS FLORES CRK
100FT E/O LAS FLORES C RD, Los Angeles, CA
Built 1945 Load: 61.6 t ADT: 102
STATE ROUTE 26
GoodOver: INDIAN CREEK
10-CAL-026-2.46, Calaveras, CA
Built 1998 Load: 61.9 t ADT: 3,710
SOLEDAD CYN RD
GoodOver: SANTA CLARA RIV / SPTC
6.0MI SW/O SR-14 FWY, Los Angeles, CA
Built 1948 Load: 61.9 t ADT: 2,550
ARROW HWY
GoodOver: LITTLE DALTON WASH
0.5MI W/O AZUSA AVE, Los Angeles, CA
Built 1952 Load: 61.9 t ADT: 25,376
SLAUSON AVE
GoodOver: ACTA
40FT E/O ALAMEDA ST, Los Angeles, CA
Built 2000 Load: 61.9 t ADT: 24,751
WICKES AVE
GoodOver: ESTUDILLO CANAL DITCH
0.15 MI S MANOR BLVD, Alameda, CA
Built 1972 Load: 62.2 t ADT: 12,900
BANGOR PARK RD
GoodOver: WILSON CREEK
0.4 MI E DUNSTONE DR, Butte, CA
Built 1950 Load: 62.2 t ADT: 300
FOURTH AVENUE
GoodOver: BRANCH OF EASTSIDE CANAL
0.25 MI W NORTHRUP ROAD, Merced, CA
Built 1968 Load: 62.2 t ADT: 150
2ND STREET
GoodOver: NORTH NORCO CHANNEL
0.16 MI E/O PARKRIDGE AVE, Riverside, CA
Built 1979 Load: 62.2 t ADT: 4,352
US HIGHWAY 101 SB
GoodOver: SOLOMON SUMMIT UC
05-SB-101-78.69, Santa Barbara, CA
Built 1956 Load: 62.2 t ADT: 14,500
US HIGHWAY 101 NB
GoodOver: SOLOMON SUMMIT UC
05-SB-101-78.69, Santa Barbara, CA
Built 1956 Load: 62.2 t ADT: 14,500
LAKEWOOD PLACE
GoodOver: CUDDY CREEK
0.02 MI N LAKEWOOD DR, Kern, CA
Built 1979 Load: 62.5 t ADT: 835
STATE ROUTE 27
GoodOver: TOPANGA CREEK
07-LA-027-2.02, Los Angeles, CA
Built 1941 Load: 62.5 t ADT: 15,950
LA LOMA RD
GoodOver: ARROYO SECO CHAN
100FT W/O ARROYO BLVD, Los Angeles, CA
Built 1914 Load: 62.5 t ADT: 3,570
STATE ROUTE 1
GoodOver: PFEIFFER CANYON
05-MON-001-45.52, Monterey, CA
Built 2017 Load: 62.5 t ADT: 3,150
LAKE ROAD
GoodOver: SAN DIEGO CREEK CHANNEL
0.2 MI SE BARRANCA PKWY, Orange, CA
Built 1981 Load: 62.5 t ADT: 5,100
U.S. HIGHWAY 101
GoodOver: SOUTH FORK EEL RIVER
01-HUM-101-R8.30, Humboldt, CA
Built 1969 Load: 62.9 t ADT: 5,700
WHITWORTH ROAD
GoodOver: GARZAS CREEK
0.1 MI S TAGLIO ROAD, Merced, CA
Built 1977 Load: 62.9 t ADT: 160
OCEANVIEW-S15 ONRA
GoodOver: CHOLLAS CREEK
11-SD-015-R0.68-SD, San Diego, CA
Built 1978 Load: 62.9 t ADT: 10,000
HUMBOLT AVENUE
GoodOver: DEER CREEK CHANNEL
0.4 MI W HAVEN AVE, San Bernardino, CA
Built 1982 Load: 63.2 t ADT: 2,200
SIXTH STREET
GoodOver: DEER CREEK CHANNEL
0.6 MI E ARCHIBALD AVE, San Bernardino, CA
Built 1981 Load: 63.2 t ADT: 13,440
EIGHTH STREET
GoodOver: DEER CREEK CHANNEL
0.4 MI W HAVEN AVE, San Bernardino, CA
Built 1982 Load: 63.2 t ADT: 3,489
STATE ROUTE 32
GoodOver: NORTH FORK DEER CREEK
02-TEH-032-24.02, Tehama, CA
Built 1972 Load: 63.2 t ADT: 1,100
CAMPBELL RIDGE RD.
GoodOver: CAMPBELL RIDGE SLIDE
5.4 MI NWEST OF SR299, Trinity, CA
Built 2006 Load: 63.2 t ADT: 100
STATE ROUTE 108
GoodOver: WEST WALKER RIVER
09-MNO-108-12.93, Mono, CA
Built 1940 Load: 63.5 t ADT: 3,050
WHIPPLE RD
GoodOver: DRY CREEK
0.1 MI W OF 7TH ST, Alameda, CA
Built 1950 Load: 63.8 t ADT: 10,300
INTERSTATE 5 SB
GoodOver: STONE CORRAL CREEK
03-COL-005-R27.74, Colusa, CA
Built 1971 Load: 63.8 t ADT: 12,500
INTERSTATE 5
GoodOver: SALT CREEK
03-COL-005-R19.25, Colusa, CA
Built 1971 Load: 63.8 t ADT: 15,000
INTERSTATE 5
GoodOver: SALT CREEK
03-COL-005-R19.25, Colusa, CA
Built 1971 Load: 63.8 t ADT: 15,000
STATE ROUTE 91
GoodOver: BNSF RY,AMTRAK,METROLINK
08-RIV-091-R1.14, Riverside, CA
Built 1970 Load: 63.8 t ADT: 264,000
INTERSTATE 5
GoodOver: SASSAFRAS STREET
11-SD-005-R17.77-SD, San Diego, CA
Built 1967 Load: 63.8 t ADT: 73,500
COUNTY ROAD # 13
GoodOver: SLOUGH 7
0.25 MI EAST OF CR 98, Yolo, CA
Built 1979 Load: 63.8 t ADT: 1,309
BROADWAY RD
GoodOver: SHEKELL WASH
0.3 MI W GRIMES CYN RD, Ventura, CA
Built 1950 Load: 64.2 t ADT: 2,400
INTERSTATE 5
GoodOver: FLETCHER DR
07-LA-005-22.97-LA, Los Angeles, CA
Built 1961 Load: 64.5 t ADT: 264,292
CANTARA STREET
GoodOver: TUJUNGA WASH
0.5 MI E/O WOODMAN AVE, Los Angeles, CA
Built 1952 Load: 64.5 t ADT: 5,400
MINTURN ROAD
GoodOver: DUTCHMAN CREEK
0.4 MI S BUCHAN HOLOW RD, Merced, CA
Built 1974 Load: 64.5 t ADT: 1,613
E&W134-E2 CONNECTR
GoodOver: GLENOAKS BLVD
07-LA-134-R9.03-GNDL, Los Angeles, CA
Built 1978 Load: 64.8 t ADT: 24,787
ATLANTIC BLVD
GoodOver: LOS ANGELES RIV
0.6MI N/O SLAUSON AVE, Los Angeles, CA
Built 1931 Load: 64.8 t ADT: 58,397
9TH ST
GoodOver: SAN ANTONIO WASH
450FT E/O E END AVE, Los Angeles, CA
Built 1962 Load: 64.8 t ADT: 2,500
Showing 25,601-25,650 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 |