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
LA MANCHA WAY
FairOver: ELDER CREEK
0.3 MI N OF MACK RD, Sacramento, CA
Built 1958 Load: 31.1 t ADT: 5,712
ARDEN WAY
FairOver: CHICKEN RANCH SLOUGH
0.1 MI EAST OF HOWE AVE, Sacramento, CA
Built 1965 Load: 31.1 t ADT: 29,666
INTERSTATE 10
FairOver: UP RR SPUR
08-SBD-010-11.74-SBD, San Bernardino, CA
Built 1947 Load: 31.1 t ADT: 195,000
OLD HIGHWAY 395
FairOver: KEYS CANYON
0.6 MI S/O ROUTE 76, San Diego, CA
Built 1947 Load: 31.1 t ADT: 6,567
INTERSTATE 5 SB
FairOver: PARADISE CUT
10-SJ-005-R12.99, San Joaquin, CA
Built 1947 Load: 31.1 t ADT: 143,000
INTERSTATE 5 SB
FairOver: BEAR CREEK
10-SJ-005-34.26, San Joaquin, CA
Built 1975 Load: 31.1 t ADT: 38,500
INTERSTATE 5 SB
FairOver: WOODBRIDGE ROAD
10-SJ-005-42.67, San Joaquin, CA
Built 1979 Load: 31.1 t ADT: 26,500
BACON ISLAND ROAD
FairOver: MIDDLE RIVER
1.3 MI N/O W LOW JONES RD, San Joaquin, CA
Built 1995 Load: 31.1 t ADT: 480
EL DORADO ST
FairOver: CALAVERAS RIVER
0.5 MI N FULTON ST, San Joaquin, CA
Built 1962 Load: 31.1 t ADT: 32,411
DRAIS ROAD
FairOver: SOUTH BRANCH DUCK CREEK
STATE HIGHWAY 4, San Joaquin, CA
Built 1961 Load: 31.1 t ADT: 231
KEYES ST
FairOver: COYOTE CREEK
1 MI E OF 2ND ST, Santa Clara, CA
Built 1954 Load: 31.1 t ADT: 32,111
LAMBERT AVE
FairOver: MATADERO CREEK
E MIRAMONTE AVE, Santa Clara, CA
Built 1951 Load: 31.1 t ADT: 2,500
BEAR CRK RD
FairOver: SAN LORENZO RIVER
AT STATE ROUTE 9, Santa Cruz, CA
Built 1954 Load: 31.1 t ADT: 5,000
OLD ALTURAS RD
FairOver: STILLWATER CREEK
0.1 MI E OREGON TRAIL RD, Shasta, CA
Built 1979 Load: 31.1 t ADT: 4,130
AIR BASE PKWY
FairOver: UP RR, BNSF RY, & AMTRAK
3 MI E/O I-80 INTERCHANGE, Solano, CA
Built 1954 Load: 31.1 t ADT: 25,330
MARK WEST STA RD
FairOver: WINDSOR CREEK
1.2 MI E OF TRE-HEALDS RD, Sonoma, CA
Built 1976 Load: 31.1 t ADT: 400
CARPENTER ROAD
FairOver: T.I.D. LATERAL #2
AT REDWOOD ROAD, Stanislaus, CA
Built 1923 Load: 31.1 t ADT: 5,200
COLLEGE AVENUE
FairOver: M.I.D. LATERAL #4
0.15 M N/O NEEDHAM, Stanislaus, CA
Built 1937 Load: 31.1 t ADT: 16,804
LAKE ROAD
FairOver: T.I.D. MAIN CANAL
5.1 MI E ROBERTS FERRY RD, Stanislaus, CA
Built 1920 Load: 31.1 t ADT: 336
HALL ROAD
FairOver: MCCLURE CREEK
0.85 MI S OF GYLE ROAD, Tehama, CA
Built 1952 Load: 31.1 t ADT: 2,400
SWIFT CREEK ROAD
FairOver: NORTH FORK SWIFT CREEK
1.0 MI W OF STATE RTE 3, Trinity, CA
Built 1972 Load: 31.1 t ADT: 75
STATE ROUTE 201
FairOver: KINGS RIVER
06-TUL-201-R1.75, Tulare, CA
Built 1964 Load: 31.1 t ADT: 5,400
ROAD 108
FairOver: ST JOHNS RIVER
0.75 MI S OF AVE 328, Tulare, CA
Built 1964 Load: 31.1 t ADT: 2,000
ROCK RIVER ROAD
FairOver: DRY CREEK
2 MI S GREEN SPRINGS RD, Tuolumne, CA
Built 1937 Load: 31.1 t ADT: 75
US HIGHWAY 101 NB
FairOver: MOBIL PIER ACCESS
07-VEN-101-R39.78, Ventura, CA
Built 1973 Load: 31.1 t ADT: 38,000
INTERSTATE 880
FairOver: ALAMEDA CREEK
04-ALA-880-12.78, Alameda, CA
Built 1957 Load: 31.4 t ADT: 202,000
INTERSTATE 580
FairOver: MAPLE AVE
04-ALA-580-R40.93-OAK, Alameda, CA
Built 1963 Load: 31.4 t ADT: 274,000
PARK ST
FairOver: OAKLAND ESTUARY
0.2 MI S/W OF I-880, Alameda, CA
Built 1934 Load: 31.4 t ADT: 41,000
HESPERIAN BLVD
FairOver: SAN LORENZO CREEK
0.01 MI S OF I-880, Alameda, CA
Built 1974 Load: 31.4 t ADT: 38,200
RICETON HWY
FairOver: LATERAL "A" DRAIN
1.2 MI N/O BIGGS-PRIN HWY, Butte, CA
Built 1939 Load: 31.4 t ADT: 780
STATE ROUTE 49
FairOver: NORTH FORK CALAVERAS RIV
10-CAL-049-R21.49, Calaveras, CA
Built 1963 Load: 31.4 t ADT: 4,700
DELPHOS ROAD
FairOver: LURLINE CREEK
0.5 MI S/O LURLINE AVE, Colusa, CA
Built 1971 Load: 31.4 t ADT: 22
G ST
FairOver: UP RR
0.4 MI N/O SR4 INTCH, Contra Costa, CA
Built 1967 Load: 31.4 t ADT: 6,100
E LINCOLN AVE
FairOver: FOWLER SWITCH CANAL
0.5 MI E OF LEONARD AVE, Fresno, CA
Built 1927 Load: 31.4 t ADT: 500
ROAD 69
FairOver: GLENN-COLUSA CANAL
0.2 MI W RD D, Glenn, CA
Built 1964 Load: 31.4 t ADT: 20
MAPLE CREEK RD
FairOver: CANYON CREEK
7.25 MI S INTX SR 299, Humboldt, CA
Built 1951 Load: 31.4 t ADT: 55
INTERSTATE 8 WB
FairOver: UP RR
11-IMP-008-R38.48-ECN, Imperial, CA
Built 1967 Load: 31.4 t ADT: 17,250
INTERSTATE 8 EB
FairOver: UP RR
11-IMP-008-R38.48-ECN, Imperial, CA
Built 1967 Load: 31.4 t ADT: 17,250
STATE ROUTE 299
FairOver: PIT RIVER OVERFLOW
02-LAS-299-13.12, Lassen, CA
Built 1925 Load: 31.4 t ADT: 1,800
U.S. HIGHWAY 395
FairOver: UP RR & BNSF RY
02-LAS-395-R22.97, Lassen, CA
Built 1969 Load: 31.4 t ADT: 5,500
INTERSTATE 5
FairOver: PALOMAS WASH
07-LA-005-R60.52R, Los Angeles, CA
Built 1951 Load: 31.4 t ADT: 36,657
INTERSTATE 5 NB
FairOver: LAKE HUGHES RD
07-LA-005-R59.49, Los Angeles, CA
Built 1968 Load: 31.4 t ADT: 37,177
4TH ST
FairOver: SEARS ACCESS TUNNEL
0.1MI N/O I-10 FWY, Los Angeles, CA
Built 1965 Load: 31.4 t ADT: 17,040
AVALON BLVD
FairOver: DOMINGUEZ CHAN
200FT N/O I-405 FWY, Los Angeles, CA
Built 1962 Load: 31.4 t ADT: 24,100
CULVER BLVD
FairOver: BALLONA CR
0.1MI W/O LINCOLN BLVD, Los Angeles, CA
Built 1937 Load: 31.4 t ADT: 22,838
WESTERN AVE
FairOver: DOMINGUEZ CHAN
0.1 MI S/O ARTESIA BLVD, Los Angeles, CA
Built 1960 Load: 31.4 t ADT: 33,280
WALNUT GROVE AVE
FairOver: RUBIO WASH
0.5MI W/O RSMD BLVD, Los Angeles, CA
Built 1963 Load: 31.4 t ADT: 23,683
213TH ST
FairOver: DOMINGUEZ CHAN
0.3MI N/O CARSON ST, Los Angeles, CA
Built 1961 Load: 31.4 t ADT: 5,700
STATE ROUTE 41 SB
FairOver: AVENUE 9
06-MAD-041-0.32, Madera, CA
Built 1999 Load: 31.4 t ADT: 28,000
STATE ROUTE 41 NB
FairOver: AVENUE 9
06-MAD-041-0.32, Madera, CA
Built 1999 Load: 31.4 t ADT: 28,000
Showing 12,001-12,050 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.