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
W/B LA PAZ ROAD
FairOver: SCRRA,BNSF RY,AMTRAK
200' NE/O MUIRLANDS BLVD, Orange, CA
Built 1965 Load: 30.8 t ADT: 16,000
E/B LA PAZ ROAD
FairOver: SCRRA,BNSF RY,AMTRAK
200' NE/O MUIRLANDS BLVD., Orange, CA
Built 1965 Load: 30.8 t ADT: 21,500
INTERSTATE 80 WB
FairOver: SOUTH YUBA RIVER
03-PLA-080-R62.77L, Placer, CA
Built 1964 Load: 30.8 t ADT: 13,500
INTERSTATE 10 WB
FairOver: EAST CHANNEL STUBBY WASH
08-RIV-010-R24.24, Riverside, CA
Built 1966 Load: 30.8 t ADT: 45,500
SOUTH PERIMETER RO
FairOver: WATER CHANNEL
Bridge located across fli, Riverside, CA
Built 1956 Load: 30.8 t ADT: 4
IRIS ROAD
FairOver: DRAINAGE CHANNEL
Approximately 500 feet we, Riverside, CA
Built 1940 Load: 30.8 t ADT: 3,000
VINCI AVE
FairOver: MAGPIE CREEK DIVERSION
0.4 MI E OF DRY CR RD, Sacramento, CA
Built 1970 Load: 30.8 t ADT: 700
INTERSTATE 10 EB
FairOver: ETIWANDA WASH
08-SBD-010-10.99-ONT, San Bernardino, CA
Built 1939 Load: 30.8 t ADT: 117,000
INTERSTATE 40
FairOver: BLOSSOM WASH
08-SBD-040-R12.00, San Bernardino, CA
Built 1968 Load: 30.8 t ADT: 19,500
INTERSTATE 15 SB
FairOver: BRUSH CREEK
08-SBD-015-R19.89, San Bernardino, CA
Built 1969 Load: 30.8 t ADT: 90,500
INTERSTATE 15 NB
FairOver: BRUSH CREEK
08-SBD-015-R19.89, San Bernardino, CA
Built 1969 Load: 30.8 t ADT: 90,500
INTERSTATE 40 EB
FairOver: SIBERIA WASH
08-SBD-040-R65.59R, San Bernardino, CA
Built 1972 Load: 30.8 t ADT: 16,500
W10-N15 CONN RAMP
FairOver: DAY CANYON CHANNEL
08-SBD-010-10.13-ONT, San Bernardino, CA
Built 1975 Load: 30.8 t ADT: 15,000
BAKER BL
FairOver: MOJAVE RIVER
0.2 MI SW DEATH VALLEY RD, San Bernardino, CA
Built 1939 Load: 30.8 t ADT: 5,541
HOSPITALITY LANE
FairOver: SAN TIMOTEO CREEK
500'E WATERMAN AVE, San Bernardino, CA
Built 1986 Load: 30.8 t ADT: 32,160
TULIP ST
FairOver: ESCONDIDO CREEK
0.12M N/O VALLEY PKWY, San Diego, CA
Built 1967 Load: 30.8 t ADT: 14,200
REGENTS ROAD
FairOver: SAN CLEMENTE CANYON CRK
200 FT S/O RTE SR 52, San Diego, CA
Built 1961 Load: 30.8 t ADT: 19,500
INTERSTATE 80
FairOver: SAN FRANCISCO BAY, 3 STS
04-SF-080-6.35L-SF, San Francisco, CA
Built 1936 Load: 30.8 t ADT: 200,000
STATE ROUTE 12
FairOver: SOUTH BRANCH MAIN CANAL
10-SJ-012-16.29-LOD, San Joaquin, CA
Built 1944 Load: 30.8 t ADT: 21,900
INTERSTATE 205 EB
FairOver: EL RANCHO ROAD
10-SJ-205-R10.48, San Joaquin, CA
Built 1970 Load: 30.8 t ADT: 48,500
INTERSTATE 5
FairOver: ANDERSON STREET
10-SJ-005-25.64-STKN, San Joaquin, CA
Built 1971 Load: 30.8 t ADT: 87,500
INTERSTATE 5 NB
FairOver: ANDERSON STREET
10-SJ-005-25.64-STKN, San Joaquin, CA
Built 1971 Load: 30.8 t ADT: 43,750
WALNUT GROVE ROAD
FairOver: SOUTH FORK MOKELUMNE RIV
3.3 MI WEST OF I 5, San Joaquin, CA
Built 1958 Load: 30.8 t ADT: 2,987
SONORA RD
FairOver: ROCK CREEK
1.5 MI SOUTHEAST S.H. 4, San Joaquin, CA
Built 1970 Load: 30.8 t ADT: 196
JACK TONE RD
FairOver: PADDY CREEK (MIDDLE)
0.5 MI N HARNEY LANE, San Joaquin, CA
Built 1962 Load: 30.8 t ADT: 2,311
AIRPORT WAY
FairOver: DUCK CREEK
1 MI N INDUSTRIAL DR, San Joaquin, CA
Built 1968 Load: 30.8 t ADT: 5,300
SB STATE ROUTE 85
FairOver: BLOSSOM HILL STATION PUC
04-SCL-085-4.17-SJS, Santa Clara, CA
Built 1991 Load: 30.8 t ADT: 51,500
W SAN CARLOS ST
FairOver: GUADALUPE RIVER
BET WOZ & ALMADEN, Santa Clara, CA
Built 1930 Load: 30.8 t ADT: 15,000
BONNY DOON RD
FairOver: LONE STAR EQUIPMENT RD
2.1 MI N/O SR 1, Santa Cruz, CA
Built 1968 Load: 30.8 t ADT: 1,000
STATE ROUTE 273
FairOver: ANDERSON CREEK
02-SHA-273-5.10-AND, Shasta, CA
Built 1948 Load: 30.8 t ADT: 9,800
INTERSTATE 5 SB
FairOver: UPPER SALT CREEK ROAD
02-SHA-005-R37.08, Shasta, CA
Built 1966 Load: 30.8 t ADT: 8,800
OLD ALTURAS ROAD
FairOver: DRY CREEK
0.2 MI E DESCHUTES RD, Shasta, CA
Built 1970 Load: 30.8 t ADT: 1,691
INTERSTATE 5 SB
FairOver: UP RR & AMTRAK
02-SIS-005-R9.20, Siskiyou, CA
Built 1964 Load: 30.8 t ADT: 20,000
EDDYS GULCH ROAD
FairOver: NORTH FORK SALMON RIVER
S SAWYERS BAR RD, Siskiyou, CA
Built 1968 Load: 30.8 t ADT: 167
US HIGHWAY 101 SB
FairOver: SOUVERAIN RD
04-SON-101-R40.03, Sonoma, CA
Built 1974 Load: 30.8 t ADT: 13,500
US HIGHWAY 101 NB
FairOver: SOUVERAIN RD
04-SON-101-R40.03, Sonoma, CA
Built 1974 Load: 30.8 t ADT: 14,250
MOSCOW RD
FairOver: RUSSIAN RIVER
AT JUNCTION WITH SR 116, Sonoma, CA
Built 1966 Load: 30.8 t ADT: 800
MARTINELLI RD
FairOver: GREEN VALLEY CREEK
0.35 MI N SH 116, Sonoma, CA
Built 1972 Load: 30.8 t ADT: 250
STARRETT HILL DR
FairOver: HILLSIDE
0.7 MI E INT MOSCOW RD, Sonoma, CA
Built 1988 Load: 30.8 t ADT: 200
SUMMERHOME PARK RD
FairOver: HILLSIDE
0.4 MI SW RIVER ROAD, Sonoma, CA
Built 1992 Load: 30.8 t ADT: 150
CLAUS ROAD
FairOver: M.I.D. MAIN CANAL
0.4 MI S/O CLARIBEL ROAD, Stanislaus, CA
Built 1925 Load: 30.8 t ADT: 13,888
STATE ROUTE 36
FairOver: DRY CREEK
02-TEH-036-10.35, Tehama, CA
Built 1959 Load: 30.8 t ADT: 520
EAGLE CRK LOOP RD
FairOver: MINNEHAHA CREEK
3 MI N OF COFFEE CRK RD, Trinity, CA
Built 1974 Load: 30.8 t ADT: 60
ROAD 136
FairOver: SAND CREEK
0.19 MI S OF A456, Tulare, CA
Built 1950 Load: 30.8 t ADT: 125
ROAD 80
FairOver: TULE RIVER
0.6 MI N OF AVE 160, Tulare, CA
Built 1948 Load: 30.8 t ADT: 200
ROAD 180
FairOver: TULARE IRRIG DIST CANAL
0.3 MI N OF AVE 312, Tulare, CA
Built 1956 Load: 30.8 t ADT: 420
STATE ROUTE 49
FairOver: NEW MELONES RESVERVOIR
10-TUO-049-R27.28, Tuolumne, CA
Built 1976 Load: 30.8 t ADT: 5,600
TIOGA ROAD
FairOver: TUOLUMNE RIVER
7.0 miles E from El Porta, Tuolumne, CA
Built 1934 Load: 30.8 t ADT: 2,041
STATE ROUTE 126
FairOver: PALM AVENUE
07-VEN-126-R11.37-SPA, Ventura, CA
Built 1965 Load: 30.8 t ADT: 23,500
STATE ROUTE 126
FairOver: PALM AVENUE
07-VEN-126-R11.37-SPA, Ventura, CA
Built 1965 Load: 30.8 t ADT: 23,500
Showing 11,901-11,950 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.