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
CHANDON AVE
PoorOver: SUTTER-BUTTE CANAL
1.4 MI E/O LARKIN RD, Butte, CA
Built 1968 Load: 26.9 t ADT: 20
CR246 (BELFAST RD)
PoorOver: WILLOW CREEK
3.0 MI N OF CR 'A27', Lassen, CA
Built 1975 Load: 26.9 t ADT: 100
PUENTE AVE
PoorOver: WALNUT CRK
0.3MI S/O I-10 FWY, Los Angeles, CA
Built 1961 Load: 26.9 t ADT: 23,730
RAMONA BLVD
PoorOver: BIG DALTON WASH
0.1MI E/O PUENTE AVE, Los Angeles, CA
Built 1959 Load: 26.9 t ADT: 8,207
SARGENTS ROAD
PoorOver: PANCHO RICO CREEK
0.2 MI S PANCHO RICO RD, Monterey, CA
Built 1935 Load: 26.9 t ADT: 890
NEVADA STREET
PoorOver: DEER CREEK
NEAR BROAD ST, Nevada, CA
Built 1938 Load: 26.9 t ADT: 3,300
RAILROAD AVENUE
PoorOver: NO NAME CREEK
AT VAN NESS, Sonoma, CA
Built 1970 Load: 26.9 t ADT: 100
RECLAMATION RD
PoorOver: TISDALE RD, TISDALE BYPS
3 MI S/O OSWALD RD, Sutter, CA
Built 1964 Load: 26.9 t ADT: 737
SIMPSON LN
PoorOver: YUBA RIVER
0.5 MI SE/O E 10TH ST, Yuba, CA
Built 1957 Load: 26.9 t ADT: 11,630
INTERSTATE 680
PoorOver: LAS TRAMPAS CREEK
04-CC-680-13.72-WLC, Contra Costa, CA
Built 1960 Load: 27.2 t ADT: 195,300
N MONROE AVE
PoorOver: HOUGHTON CANAL
0.5 MI S BELMONT AVE, Fresno, CA
Built 1925 Load: 27.2 t ADT: 210
SIERRA WAY
PoorOver: SOUTH FORK KERN RIVER
1.0 MI N/O SH 178, Kern, CA
Built 1958 Load: 27.2 t ADT: 1,060
U.S. HIGHWAY 101
PoorOver: KESTER AVE
07-LA-101-16.43-LA, Los Angeles, CA
Built 1959 Load: 27.2 t ADT: 293,000
THE OLD RD
PoorOver: CASTAIC CRK
0.8MI N/O SR-126 HWY, Los Angeles, CA
Built 1931 Load: 27.2 t ADT: 11,505
INTERSTATE 8 WB
PoorOver: VIEJAS CREEK
11-SD-008-R31.79, San Diego, CA
Built 1969 Load: 27.2 t ADT: 12,750
ROAD
PoorOver: BUTTE FORK CREEK
NO DATA ENTERED, Siskiyou, CA
Built 1951 Load: 27.2 t ADT: 10
STATE ROUTE 116
PoorOver: DRAKE ROAD
04-SON-116-R12.42, Sonoma, CA
Built 1999 Load: 27.2 t ADT: 8,450
PATROL ROAD
PoorOver: REED'S CREEK TRIBUTARY
1.0 MILE WEST OF NORTH BE, Yuba, CA
Built 1942 Load: 27.2 t ADT: 50
PATROL ROAD
PoorOver: REED'S CREEK TRIBUTARY
1.1 MILES WEST OF NORTH B, Yuba, CA
Built 1942 Load: 27.2 t ADT: 50
INTERSTATE 880
PoorOver: CRANDALL CREEK
04-ALA-880-10.66-FMT, Alameda, CA
Built 1958 Load: 27.5 t ADT: 225,000
LOS GATOS ROAD
PoorOver: LOS GATOS CREEK
13.47 MI W DERRICK BLVD, Fresno, CA
Built 1945 Load: 27.5 t ADT: 100
E ADAMS AVE
PoorOver: FOWLER SWITCH CANAL
0.33 MI W OF MCCALL AVE, Fresno, CA
Built 1952 Load: 27.5 t ADT: 1,100
WINDING ROAD
PoorOver: BASIN CREEK
11S12-21.1, Fresno, CA
Built 1968 Load: 27.5 t ADT: 50
WINTERHAVEN DRIVE
PoorOver: CALIFORNIA WASTEWAY
120 FT N/O OF I-8 RAMPS, Imperial, CA
Built 1955 Load: 27.5 t ADT: 6,010
HACIENDA BLVD
PoorOver: PUENTE CR
1.0MI N/O VALLEY BLVD, Los Angeles, CA
Built 1956 Load: 27.5 t ADT: 39,934
BEAR VALLEY RD
PoorOver: OLEMA CREEK
0.04 MI W OF S.H. 1, Marin, CA
Built 1937 Load: 27.5 t ADT: 3,500
MILL ST
PoorOver: TWIN WARM CREEK
0.15 MI W WATERMAN AVE, San Bernardino, CA
Built 1959 Load: 27.5 t ADT: 12,024
INTERSTATE 680
PoorOver: EL PINTADO ROAD
04-CC-680-R8.75-DNVL, Contra Costa, CA
Built 1964 Load: 27.9 t ADT: 194,300
STATE ROUTE 98
PoorOver: WESTSIDE MAIN CANAL
11-IMP-098-22.02, Imperial, CA
Built 1955 Load: 27.9 t ADT: 2,100
STATE ROUTE 99
PoorOver: HIGH ST & UP RR
06-KER-099-57.10-DLN, Kern, CA
Built 1955 Load: 27.9 t ADT: 53,000
STATE ROUTE 99 SB
PoorOver: COTTONWOOD CREEK
06-MAD-099-R7.28, Madera, CA
Built 1967 Load: 27.9 t ADT: 32,500
ASSOCIATED RD
PoorOver: FULLERTON DAM DIV CHAN
0.3 MI N/O BASTANCHURY, Orange, CA
Built 1941 Load: 27.9 t ADT: 10,400
STATE ROUTE 89
PoorOver: TRUCKEE RIVER
03-PLA-089-8.48, Placer, CA
Built 1928 Load: 27.9 t ADT: 11,100
FIR ROAD
PoorOver: DUTCH BILL CREEK
MONTE RIO, Sonoma, CA
Built 1974 Load: 27.9 t ADT: 300
STATE ROUTE 33
PoorOver: CASITAS VISTA ROAD
07-VEN-033-R5.64, Ventura, CA
Built 1970 Load: 27.9 t ADT: 12,000
VALLECITOS ROAD
PoorOver: ARROYO DEL VALLE
450 FT NW OF VINEYARD AVE, Alameda, CA
Built 1940 Load: 28.2 t ADT: 19,250
EL SEGUNDO BLVD
PoorOver: COMPTON CRK
0.8MI W/O WILMINGTON AVE, Los Angeles, CA
Built 1948 Load: 28.2 t ADT: 23,426
STATE ROUTE 12
PoorOver: SACRAMENTO RIVER, SR 84
04-SOL-012-26.24-RVS, Solano, CA
Built 1944 Load: 28.2 t ADT: 20,100
RIVER RD
PoorOver: RUSSIAN RIVER
5.31 MI INTX WITH SR 116, Sonoma, CA
Built 1914 Load: 28.2 t ADT: 10,000
FAITH HOME ROAD
PoorOver: T.I.D. UPPER LATERAL #4
0.5 MI N/O W. MAIN ST, Stanislaus, CA
Built 1919 Load: 28.2 t ADT: 1,461
MAPLE CREEK ROAD
PoorOver: NORTH FORK MAD RIVER
IN KORBEL, Humboldt, CA
Built 1928 Load: 28.5 t ADT: 624
HOOKTON ROAD
PoorOver: SALMON CREEK
0.1 MI W EEL RIVER DR, Humboldt, CA
Built 1922 Load: 28.5 t ADT: 486
U.S. HIGHWAY 6
PoorOver: OWENS RIVER
09-INY-006-3.73-BIS, Inyo, CA
Built 1949 Load: 28.5 t ADT: 4,550
VALLEY BLVD
PoorOver: RUBIO WASH
0.5MI W/O ROSEMEAD BLVD, Los Angeles, CA
Built 1926 Load: 28.5 t ADT: 27,122
INTERSTATE 5 SB
PoorOver: WALKER SLOUGH
10-SJ-005-R23.93-STKN, San Joaquin, CA
Built 1971 Load: 28.5 t ADT: 43,750
MANZANITA AVE
PoorOver: BIG CHICO CREEK
BTW VALLOMBROSA&CENTENNAL, Butte, CA
Built 1974 Load: 28.8 t ADT: 12,000
ROAD 99W
PoorOver: STONY CREEK
1.3 MI N OF S.H. 32, Glenn, CA
Built 1913 Load: 28.8 t ADT: 4,157
BRIDGE ROAD
PoorOver: NELDER CREEK
0.1 MI W DORSTAN RD, Madera, CA
Built 1966 Load: 28.8 t ADT: 367
INTERSTATE 80 EB
PoorOver: KINGVALE ROAD
03-PLA-080-69.23, Placer, CA
Built 1959 Load: 28.8 t ADT: 13,500
INTERSTATE 40 EB
PoorOver: WILLOW SPRINGS WASH
08-SBD-040-R77.37, San Bernardino, CA
Built 1972 Load: 28.8 t ADT: 8,500
Showing 26,351-26,400 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 |