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
INTERSTATE 15
GoodOver: CEMENT COMPANY ROAD
08-SBD-015-46.40-VCTV, San Bernardino, CA
Built 1958 Load: 27.9 t ADT: 59,000
INLAND EMPIRE BLVD
GoodOver: CUCAMONGA CREEK
0.4 MI W ARCHIBALD AVE, San Bernardino, CA
Built 1967 Load: 27.9 t ADT: 3,000
ST RTE 99 & RAMPS
GoodOver: MORMON SLOUGH
10-SJ-099-17.76, San Joaquin, CA
Built 1949 Load: 27.9 t ADT: 87,000
INTERSTATE 205 WB
GoodOver: EL RANCHO ROAD
10-SJ-205-R10.48, San Joaquin, CA
Built 1970 Load: 27.9 t ADT: 48,500
DRY CREEK ROAD
GoodOver: COYOTE CREEK
1 MI N OF E. LIBERTY RD, San Joaquin, CA
Built 1995 Load: 27.9 t ADT: 14
US HIGHWAY 101 NB
GoodOver: NOJOQUI CREEK
05-SB-101-54.71, Santa Barbara, CA
Built 1955 Load: 27.9 t ADT: 12,000
INTERSTATE 80 EB
GoodOver: SOUTH FORK PUTAH CREEK
04-SOL-080-42.36, Solano, CA
Built 1940 Load: 27.9 t ADT: 59,500
PLEASANTS VALLEY R
GoodOver: ALAMO CREEK
0.5 MI S VACA VALLEY RD, Solano, CA
Built 1947 Load: 27.9 t ADT: 1,764
INTERSTATE 5 SB
GoodOver: CORNING CANAL
02-TEH-005-R23.04, Tehama, CA
Built 1965 Load: 27.9 t ADT: 14,000
INTERSTATE 5 NB
GoodOver: CORNING CANAL
02-TEH-005-R23.04, Tehama, CA
Built 1965 Load: 27.9 t ADT: 14,000
PASKENTA ROAD
GoodOver: MCCARTY CREEK
1.3 MI W/O CORNING RD, Tehama, CA
Built 1951 Load: 27.9 t ADT: 600
DIAGONAL 60
GoodOver: CROSS CREEK
2.05 MI S OF AVE 352, Tulare, CA
Built 1962 Load: 27.9 t ADT: 225
ROAD 160
GoodOver: WHITE RIVER
0.3 MI NORTH OF AVE 32, Tulare, CA
Built 1947 Load: 27.9 t ADT: 300
HARBOR BLVD
GoodOver: SANTA CLARA RIVER
0.5 MI S OLIVAS PARK DR, Ventura, CA
Built 1956 Load: 27.9 t ADT: 20,500
ROAD
GoodOver: COOK AND GREEN
NO DATA ENTERED, Siskiyou, CA
Built 1957 Load: 28.1 t ADT: 30
STATE ROUTE 36
GoodOver: VAN DUZEN RIVER
01-HUM-036-12.78, Humboldt, CA
Built 1965 Load: 28.2 t ADT: 1,650
STOVER ROAD
GoodOver: MILL CREEK
2.5 MI FROM BAIR RD, Humboldt, CA
Built 1961 Load: 28.2 t ADT: 56
LYONS RD
GoodOver: NEW RIVER
2.0 MI E/O BROCKMAN RD, Imperial, CA
Built 1940 Load: 28.2 t ADT: 500
U.S. HIGHWAY 101
GoodOver: SHOUP AVE
07-LA-101-25.88-LA, Los Angeles, CA
Built 1957 Load: 28.2 t ADT: 202,000
INTERSTATE 5 SB
GoodOver: GORMAN SCHOOL RD
07-LA-005-R85.80, Los Angeles, CA
Built 1966 Load: 28.2 t ADT: 37,708
CAMINO REAL
GoodOver: ARCADIA WASH
0.1MI E/O EL MONTE AVE, Los Angeles, CA
Built 1955 Load: 28.2 t ADT: 4,692
WHITES CYN RD
GoodOver: SP/UP RR
0.4MI S/O SOLEDAD CYN RD, Los Angeles, CA
Built 1992 Load: 28.2 t ADT: 29,799
CENTERVILLE RD
GoodOver: SOUTH FORK PIT RIVER
0.6MI S OF CARLOS ST, Modoc, CA
Built 1958 Load: 28.2 t ADT: 1,000
STATE ROUTE 1
GoodOver: WILLOW CREEK
05-MON-001-11.67, Monterey, CA
Built 1961 Load: 28.2 t ADT: 2,000
FTORD 19038: OLD R
GoodOver: EL TORO CREEK
4 mi SW of Salinas, CA, Monterey, CA
Built 1940 Load: 28.2 t ADT: 100
STATE ROUTE 29 NB
GoodOver: NAPA CREEK
04-NAP-029-11.65-NAP, Napa, CA
Built 1949 Load: 28.2 t ADT: 33,500
LAMPSON AVENUE
GoodOver: BOLSA CHICA CHANNEL
0.8 MI W/O VALLEY VIEW, Orange, CA
Built 1966 Load: 28.2 t ADT: 25,000
LINCOLN BLVD
GoodOver: BIG YANKEE SLOUGH
0.56 MI NW OF NADER LN, Placer, CA
Built 1950 Load: 28.2 t ADT: 15,500
INTERSTATE 10 WB
GoodOver: SMOKY GULCH
08-RIV-010-R63.65-COA, Riverside, CA
Built 1964 Load: 28.2 t ADT: 11,250
INTERSTATE 10 EB
GoodOver: EAST COTTON GULCH
08-RIV-010-R80.65, Riverside, CA
Built 1965 Load: 28.2 t ADT: 11,250
INTERSTATE 10 WB
GoodOver: PAUL GULCH
08-RIV-010-R81.21, Riverside, CA
Built 1965 Load: 28.2 t ADT: 11,250
INTERSTATE 15 SB
GoodOver: CLARK MOUNTAIN DITCH
08-SBD-015-167.99L, San Bernardino, CA
Built 1963 Load: 28.2 t ADT: 18,500
INTERSTATE 15 NB
GoodOver: CLARK MOUNTAIN DITCH
08-SBD-015-167.99R, San Bernardino, CA
Built 1963 Load: 28.2 t ADT: 18,500
INTERSTATE 8 WB
GoodOver: CARRIZO GORGE RD,SDIV RR
11-SD-008-R72.55, San Diego, CA
Built 1967 Load: 28.2 t ADT: 8,150
CARLSBAD BLVD
GoodOver: MTDB, BNSF RY, AMTRAK
0.5MI N/O CARLSBAD VLG RD, San Diego, CA
Built 1925 Load: 28.2 t ADT: 20,713
MURPHY ROAD
GoodOver: LONE TREE CREEK
0.6 MI N OF LONE TREE RD, San Joaquin, CA
Built 1926 Load: 28.2 t ADT: 380
STATE ROUTE 227
GoodOver: EAST FORK PISMO CREEK
05-SLO-227-5.26, San Luis Obispo, CA
Built 1966 Load: 28.2 t ADT: 3,550
STATE ROUTE 227
GoodOver: WEST CORRAL DE PIEDRA CR
05-SLO-227-R7.34, San Luis Obispo, CA
Built 1971 Load: 28.2 t ADT: 11,500
STATE ROUTE 33
GoodOver: BALLINGER CANYON
05-SB-033-7.05, Santa Barbara, CA
Built 1953 Load: 28.2 t ADT: 455
STATE ROUTE 166
GoodOver: CUYAMA RIVER
05-SB-166-R30.73, Santa Barbara, CA
Built 1974 Load: 28.2 t ADT: 2,500
S280-S87 CONNECTOR
GoodOver: MINOR AVENUE
04-SCL-280-R2.63-SJS, Santa Clara, CA
Built 1972 Load: 28.2 t ADT: 19,600
STATE ROUTE 237 WB
GoodOver: UP RR YD,ACCESS RD,BARTD
04-SCL-237-10.20-MPS, Santa Clara, CA
Built 1969 Load: 28.2 t ADT: 36,500
SWANTON RD
GoodOver: LITTLE CREEK
2.8 MI NW OF SR 1, Santa Cruz, CA
Built 1940 Load: 28.2 t ADT: 240
INTERSTATE 5
GoodOver: SODA CREEK ROAD
02-SHA-005-65.41, Shasta, CA
Built 1960 Load: 28.2 t ADT: 18,000
RAINBOW LAKE RD
GoodOver: DUCKET CREEK
0.4 MI N SUNNY HILL RD, Shasta, CA
Built 1975 Load: 28.2 t ADT: 40
STATE ROUTE 3
GoodOver: SUGAR CREEK
02-SIS-003-11.29, Siskiyou, CA
Built 1958 Load: 28.2 t ADT: 925
SPERRY ROAD
GoodOver: SALADO CREEK
1.7 MI E/O I-5, W/O AE AV, Stanislaus, CA
Built 1920 Load: 28.2 t ADT: 8,770
JELLYS FERRY ROAD
GoodOver: NORTH FORK BLUE TENT CRK
0.1 MI E OF I-5, Tehama, CA
Built 1963 Load: 28.2 t ADT: 1,971
LEGGET DR
GoodOver: PORTER SLOUGH
0.4 MI N SR 190, Tulare, CA
Built 1937 Load: 28.2 t ADT: 3,600
WINDING ROAD
GoodOver: HULL CREEK
NO DATA ENTERED, Tuolumne, CA
Built 1990 Load: 28.2 t ADT: 50
Showing 19,301-19,350 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.