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
MORELLI LANE
FairOver: NORTH FORK LANCEL CREEK
0.65 MI N BOHEMIAN HWY, Sonoma, CA
Built 1970 Load: 62.2 t ADT: 100
STATE ROUTE 201
FairOver: COTTONWOOD CREEK
06-TUL-201-23.82, Tulare, CA
Built 1970 Load: 62.2 t ADT: 2,800
STATE ROUTE 14
FairOver: 10TH STREET WEST
07-LA-014-R61.77-PMDL, Los Angeles, CA
Built 1972 Load: 62.5 t ADT: 44,500
SHERWOOD ROAD
FairOver: DUTCH HENRY CREEK
1.5 MI S OF RTE 101, Mendocino, CA
Built 1985 Load: 62.5 t ADT: 648
TRAMWAY ROAD
FairOver: CHINO CANYON CREEK
AT TRAMWAY BLDG (3.7 MI W, Riverside, CA
Built 1985 Load: 62.5 t ADT: 1,300
GREENBROOK DR
FairOver: COW CREEK
0.6 MI E CAMINO RAMON, Contra Costa, CA
Built 1971 Load: 62.9 t ADT: 7,643
EAST HILL RD
FairOver: HAEHL CREEK
0.1 MI E CR 300, Mendocino, CA
Built 1980 Load: 62.9 t ADT: 1,438
IDAHO MARYLAND RD
FairOver: WOLF CREEK
0.5 MI W OF BRUNSWICK, Nevada, CA
Built 1977 Load: 62.9 t ADT: 6,604
INTERSTATE 40
FairOver: HOMER WASH
08-SBD-040-R120.47, San Bernardino, CA
Built 1971 Load: 62.9 t ADT: 13,600
INTERSTATE 40
FairOver: HOMER WASH
08-SBD-040-R120.47, San Bernardino, CA
Built 1971 Load: 62.9 t ADT: 13,600
WILDCAT CANYON RD
FairOver: SAN VICENTE CREEK
550 FT S/O SAN VICENTE RD, San Diego, CA
Built 1984 Load: 62.9 t ADT: 6,074
STATE ROUTE 99
FairOver: DEER CREEK OVERFLOW
02-TEH-099-5.82, Tehama, CA
Built 1921 Load: 62.9 t ADT: 6,800
INTERSTATE 40
FairOver: ARDIS DITCH
08-SBD-040-R118.66, San Bernardino, CA
Built 1971 Load: 63.2 t ADT: 7,500
DURNEL RD
FairOver: HANLON SLOUGH
2.60 MI N OF NELSON RD, Butte, CA
Built 1937 Load: 63.5 t ADT: 44
66TH AVE
FairOver: WHITEWATER RIVER
0.9 MI. W/O ST RTE 86S, Riverside, CA
Built 1973 Load: 63.5 t ADT: 3,765
ROAD 140
FairOver: TULARE IRRIG DIST CANAL
INTERSECTION WITH AVE 272, Tulare, CA
Built 1948 Load: 63.5 t ADT: 2,450
INTERSTATE 5 NB
FairOver: STONE CORRAL CREEK
03-COL-005-R27.74, Colusa, CA
Built 1971 Load: 63.8 t ADT: 17,000
STATE ROUTE 180
FairOver: TEN MILE CREEK
06-FRE-180-123.56, Fresno, CA
Built 1967 Load: 63.8 t ADT: 730
JERROLD AVE
FairOver: ARROYO CANAL
0.6 MI N OF VALERIA AVE., Fresno, CA
Built 1975 Load: 63.8 t ADT: 300
SCHLEISMAN ROAD
FairOver: CUCAMONGA CREEK
0.5 MI. W/O ARCHIBALD AVE, Riverside, CA
Built 1977 Load: 63.8 t ADT: 8,391
INTERSTATE 5
FairOver: SOUTH CHOLLAS CREEK
11-SD-005-R12.43-SD, San Diego, CA
Built 1963 Load: 63.8 t ADT: 164,000
INTERSTATE 5 SB
FairOver: SAN LUIS REY RIVER
11-SD-005-R54.04-OCN, San Diego, CA
Built 1971 Load: 63.8 t ADT: 78,500
CARPINTERIA AVENUE
FairOver: SANTA MONICA CREEK
0.1 MI W SEVENTH ST, Santa Barbara, CA
Built 1971 Load: 63.8 t ADT: 4,871
SANTA CLARA ST
FairOver: COYOTE CREEK
0.8 MI W OF US 101, Santa Clara, CA
Built 1917 Load: 63.8 t ADT: 21,840
STATE ROUTE 20
FairOver: SACRAMENTO RIV(MERIDIAN)
03-SUT-020-R0.01, Sutter, CA
Built 1977 Load: 63.8 t ADT: 7,600
STATE ROUTE 89
FairOver: WEST FORK CARSON RIVER
10-ALP-089-21.46, Alpine, CA
Built 1960 Load: 64.2 t ADT: 3,200
CHAPEL AVE
FairOver: UPRR
UPRR, Los Angeles, CA
Built 1979 Load: 64.2 t ADT: 13,866
EASTSIDE LANE
FairOver: IRRIGATION CANAL
0.2 MI N RTE 395 JCT, Mono, CA
Built 1978 Load: 64.2 t ADT: 826
WILLOW GLEN RD
FairOver: RAINBOW CREEK
1.4MI N/O MISSION RD, San Diego, CA
Built 1984 Load: 64.2 t ADT: 329
OCALA STREET
FairOver: SILVER CREEK
WEST OF WHITE RD, Santa Clara, CA
Built 1976 Load: 64.5 t ADT: 12,720
STATE ROUTE 299
FairOver: LEMM CREEK
02-SHA-299-32.25, Shasta, CA
Built 2015 Load: 64.5 t ADT: 4,750
PENDOLA RD
FairOver: WILLOW CREEK
0.7 MI NW/O SR 49, Yuba, CA
Built 1979 Load: 64.5 t ADT: 120
SITES-LODOGA RD
FairOver: SQUAW CREEK
21.8 MI W/O I-5, Colusa, CA
Built 1973 Load: 64.8 t ADT: 283
E210-W2 CONNECTOR
FairOver: VERDUGO BLVD
07-LA-210-R18.78-GNDL, Los Angeles, CA
Built 1972 Load: 64.8 t ADT: 26,100
SOUTH SHORE DR
FairOver: LAKEVIEW CANYON
NEAR LARCH ST, Nevada, CA
Built 1966 Load: 64.8 t ADT: 800
AMES AVE
FairOver: BERRYESSA CREEK
E OF MILPITAS BLVD, Santa Clara, CA
Built 1972 Load: 64.8 t ADT: 2,573
CARIBOU ROAD
FairOver: SOUTH FORK SALMON RIVER
4 MI S/O CECILVILLE ROAD, Siskiyou, CA
Built 1984 Load: 64.8 t ADT: 48
CREEK RD
FairOver: SAN ANTONIO CREEK
0.1 MI N/E HERMOSA RD, Ventura, CA
Built 1976 Load: 64.8 t ADT: 2,800
CUSTER AVE
FairOver: COLONY MAIN CANAL
0.5 MI S OF VALERIA AVE, Fresno, CA
Built 1935 Load: 65.1 t ADT: 250
KIMBERLINA RD
FairOver: LERDO CANAL
0.7 MI W OF DRIVER RD, Kern, CA
Built 1985 Load: 65.1 t ADT: 3,000
WEST HILLS PKWY
FairOver: SAN DIEGO RIVER
0.3 MI N/O MISSION GORGE, San Diego, CA
Built 1980 Load: 65.1 t ADT: 22,300
CEDAR GROVE ROAD (
FairOver: ROARING RIVER
KINGS CANYON HWY. MP 31.9, Fresno, CA
Built 1953 Load: 65.3 t ADT: 278
WALNUT DR
FairOver: SALT CREEK
1.5 MI E OF SR 20, Colusa, CA
Built 1970 Load: 65.4 t ADT: 181
E JEFFERSON AVE
FairOver: TRAVERS CREEK
0.75 MI E ALTA AVE, Fresno, CA
Built 1935 Load: 65.4 t ADT: 340
JURUPA ROAD
FairOver: DAY CREEK CHANNEL
0.3 MI. W/O ETIWANDA AVE., Riverside, CA
Built 1980 Load: 65.4 t ADT: 8,254
VINEYARD DR
FairOver: SALINAS RIVER
0.3 MI E OF U.S. 101, San Luis Obispo, CA
Built 1977 Load: 65.4 t ADT: 4,119
STATE ROUTE 34
FairOver: UP RR, AMTRAK, METROLINK
07-VEN-034-R13.27-CMRL, Ventura, CA
Built 1972 Load: 65.4 t ADT: 18,800
AUTOGOLF CENTER DR
FairOver: WHITEWATER RIVER
0.15 MI SW/O I-10, Riverside, CA
Built 1972 Load: 65.8 t ADT: 15,500
ACCESS ROAD
FairOver: LIL SAN GORGONIO CREEK
.1MI S OF WILDWOOD+.1MI E, San Bernardino, CA
Built 1969 Load: 65.8 t ADT: 8
MIDWAY ROAD
FairOver: MC CUNE CREEK
1.3 MI E OF I-80, Solano, CA
Built 1970 Load: 66.1 t ADT: 5,000
Showing 16,851-16,900 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.