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
LOWER WYANDOTTE RD
GoodOver: WYMAN RAVINE
0.9 MI S LAS PLUMAS AVE, Butte, CA
Built 1972 Load: 41.1 t ADT: 7,160
STATE ROUTE 89
GoodOver: TAYLOR CREEK
03-ED-089-12.03, El Dorado, CA
Built 1995 Load: 41.1 t ADT: 3,800
STATE ROUTE 89
GoodOver: CASCADE CREEK
03-ED-089-14.81, El Dorado, CA
Built 1995 Load: 41.1 t ADT: 2,034
BARLOW LN
GoodOver: NORTH FORK BISHOP CREEK
0.2 MI S OF RTE 395, Inyo, CA
Built 1983 Load: 41.1 t ADT: 1,100
HARBIN SPRINGS RD
GoodOver: HARBIN CREEK
2.3 MI NW OF BIG CYN RD, Lake, CA
Built 1930 Load: 41.1 t ADT: 152
STATE ROUTE 139
GoodOver: MEADOW CHANNEL
02-LAS-139-16.92, Lassen, CA
Built 1966 Load: 41.1 t ADT: 550
BERT ROAD
GoodOver: LONG VALLEY CRK OVRFLOW
0.6 MI S OF US HWY 395, Lassen, CA
Built 1968 Load: 41.1 t ADT: 10
RAMP/CONNECTOR 405
GoodOver: HASKELL AVE
07-LA-405-41.35-LA, Los Angeles, CA
Built 1963 Load: 41.1 t ADT: 7,700
W2-W134 CONNECTOR
GoodOver: SINCLAIR AVE
07-LA-002-R18.94-GNDL, Los Angeles, CA
Built 1967 Load: 41.1 t ADT: 18,905
INTERSTATE 210
GoodOver: WHEATLAND AVENUE
07-LA-210-R9.43-LA, Los Angeles, CA
Built 1980 Load: 41.1 t ADT: 113,000
VINCENT AVE
GoodOver: LITTLE DALTON WASH
0.5MI S/O ARROW HWY, Los Angeles, CA
Built 1959 Load: 41.1 t ADT: 10,094
CALIFORNIA AVE
GoodOver: WALNUT CRK
100FT S/O W COVINA PKWY, Los Angeles, CA
Built 1961 Load: 41.1 t ADT: 7,440
SAN MRTNZ GRAN CYN
GoodOver: SAN MRTNZ GRANDE CYN CK
2.3MI N/O SR-126 HWY, Los Angeles, CA
Built 1953 Load: 41.1 t ADT: 67
LONGDEN AVE
GoodOver: SAWPIT WASH
0.1MI E/O PECK RD, Los Angeles, CA
Built 1950 Load: 41.1 t ADT: 16,799
LOUISE ST
GoodOver: VERDUGO WASH
0.2MI N/O US-101 FWY, Los Angeles, CA
Built 1990 Load: 41.1 t ADT: 2,346
U.S. HIGHWAY 395
GoodOver: EAST WALKER RIVER
09-MNO-395-76.31, Mono, CA
Built 1961 Load: 41.1 t ADT: 6,950
US 101 SB,S101 OFF
GoodOver: LITTLE BEAR CREEK
05-MON-101-R91.27, Monterey, CA
Built 1965 Load: 41.1 t ADT: 49,000
US HIGHWAY 101 NB
GoodOver: LITTLE BEAR CREEK
05-MON-101-R91.29, Monterey, CA
Built 1965 Load: 41.1 t ADT: 49,000
INTERSTATE 10 WB
GoodOver: COTTONWOOD CREEK
08-RIV-010-R25.44, Riverside, CA
Built 1967 Load: 41.1 t ADT: 39,500
INTERSTATE 10 EB
GoodOver: COTTONWOOD CREEK
08-RIV-010-R25.44, Riverside, CA
Built 1967 Load: 41.1 t ADT: 39,500
VAN MAREN LANE
GoodOver: ARCADE CREEK
0.2 MI S OF AUBURN BLVD, Sacramento, CA
Built 1972 Load: 41.1 t ADT: 16,120
INTERSTATE 5
GoodOver: TECOLOTE CREEK
11-SD-005-R20.88-SD, San Diego, CA
Built 1967 Load: 41.1 t ADT: 110,000
PARADISE ROAD
GoodOver: PARADISE CUT
0.4 MI N DELTA AVE, San Joaquin, CA
Built 1988 Load: 41.1 t ADT: 288
US HIGHWAY 101 NB
GoodOver: ARROYO PARIDA
05-SB-101-R5.63, Santa Barbara, CA
Built 1952 Load: 41.1 t ADT: 37,500
STATE ROUTE 1
GoodOver: SOLOMON CANYON CREEK
05-SB-001-47.91, Santa Barbara, CA
Built 1962 Load: 41.1 t ADT: 2,200
MURTHA DRIVE
GoodOver: SILVER CREEK
SUNDOWN LN & FARRINGDON D, Santa Clara, CA
Built 1976 Load: 41.1 t ADT: 1,200
STATE ROUTE 299
GoodOver: BIG FRENCH CREEK
02-TRI-299-23.29, Trinity, CA
Built 1952 Load: 41.1 t ADT: 3,100
MERCY COURT
GoodOver: DRAINAGE DITCH
0.1MI FROM VANDEGRIFT BVD, San Diego, CA
Built 2011 Load: 41.4 t ADT: 35
ST RTE 84 (ISABEL)
GoodOver: ARROYO DEL VALLE
04-ALA-084-R25.45-LVMR, Alameda, CA
Built 1983 Load: 41.5 t ADT: 18,500
DUBLIN BLVD
GoodOver: ALAMO CANAL
0.1 MI E/O CLARK ST, Alameda, CA
Built 1965 Load: 41.5 t ADT: 29,440
FIFTH ST (OLD 99W)
GoodOver: SALT CREEK
0.4 MI S FRESHWATER RD, Colusa, CA
Built 1930 Load: 41.5 t ADT: 3,219
ROAD 16N30
GoodOver: ALLEY CREEK
1.6 MI. N.E. UPLAKE R.S., Lake, CA
Built 1972 Load: 41.5 t ADT: 25
INTERSTATE 5 SB
GoodOver: GORMAN CREEK
07-LA-005-R80.79, Los Angeles, CA
Built 1949 Load: 41.5 t ADT: 35,890
STATE ROUTE 39
GoodOver: W FORK SAN GABRIEL RIVER
07-LA-039-26.96, Los Angeles, CA
Built 1962 Load: 41.5 t ADT: 1,618
INTERSTATE 605
GoodOver: UP RR, DOWNEY-NORWALK RD
07-LA-605-R8.23-NRW, Los Angeles, CA
Built 1966 Load: 41.5 t ADT: 297,000
SUNSET AVE
GoodOver: WALNUT CRK
200FT S/O W COVINA PKWY, Los Angeles, CA
Built 1962 Load: 41.5 t ADT: 31,764
LARK ELLEN AVE
GoodOver: SAN DIMAS WASH
0.5MI W/O AZUSA AVE, Los Angeles, CA
Built 1958 Load: 41.5 t ADT: 16,640
SATICOY ST
GoodOver: BULL CREEK
BTW FORBES AV DE CELIS PL, Los Angeles, CA
Built 1954 Load: 41.5 t ADT: 23,000
CHILDS AVE
GoodOver: UP RR
0.08 MI W OF SR 99, Merced, CA
Built 1964 Load: 41.5 t ADT: 6,938
STATE ROUTE 1 SB
GoodOver: PEDESTRIAN WALKWAY
05-MON-001-R83.47, Monterey, CA
Built 1973 Load: 41.5 t ADT: 29,500
INTERSTATE 15 NB
GoodOver: MAYHEW WASH
08-RIV-015-31.97, Riverside, CA
Built 1979 Load: 41.5 t ADT: 60,500
MCKINLEY STREET
GoodOver: ARLINGTON CHANNEL
0.2 MI. S/O ROUTE 91 FWY., Riverside, CA
Built 1975 Load: 41.5 t ADT: 16,000
PALM CANYON DRIVE
GoodOver: W RANCHO MIRAGE CHANNEL
3.0 MI. SE/O DATE PALM DR, Riverside, CA
Built 1964 Load: 41.5 t ADT: 35,000
INTERSTATE 5
GoodOver: TECOLOTE CREEK
11-SD-005-R20.88-SD, San Diego, CA
Built 1967 Load: 41.5 t ADT: 110,000
AQUA TIBIA BRIDGE
GoodOver: AQUA TIBIA CREEK
11-SD-076-27.20, San Diego, CA
Built 1957 Load: 41.5 t ADT: 10,800
INTERSTATE 905 EB
GoodOver: MTDB LRT & SDIV RR
11-SD-905-3.72-SD, San Diego, CA
Built 1976 Load: 41.5 t ADT: 19,500
ATKINS RD
GoodOver: BEAR CREEK
2.1 MI N OF BRANDT RD, San Joaquin, CA
Built 1971 Load: 41.5 t ADT: 150
OAK RUN RD
GoodOver: LITTLE COW CREEK
1.1 MI S OF S.R. 299, Shasta, CA
Built 1981 Load: 41.5 t ADT: 220
ROAD 7-30
GoodOver: LITTLE TRUCKEE RIVER
S27 T19N R14E, Sierra, CA
Built 1998 Load: 41.5 t ADT: 50
STATE ROUTE 96
GoodOver: BEAVER CREEK
02-SIS-096-88.26, Siskiyou, CA
Built 1932 Load: 41.5 t ADT: 650
Showing 24,801-24,850 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 |