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 405
GoodOver: WASHINGTON PLACE
07-LA-405-27.61-CLC, Los Angeles, CA
Built 1960 Load: 74.2 t ADT: 278,000
N5-W76 CONNECTOR
GoodOver: SAN LUIS REY RIVER
11-SD-005-R54.06-OCN, San Diego, CA
Built 1971 Load: 74.3 t ADT: 1
INTERSTATE 15
GoodOver: UP RR
08-SBD-015-R22.75, San Bernardino, CA
Built 1969 Load: 74.5 t ADT: 158,000
SKYLARK WAY
GoodOver: BROWNS VALLEY CREEK
0.1M N OF TALL GRASS DR, Napa, CA
Built 2007 Load: 74.8 t ADT: 300
SHEEP RANCH RD
GoodOver: SAN DOMINGO CREEK
2.4 MI N MURPHYS, Calaveras, CA
Built 1980 Load: 75.2 t ADT: 263
ROUTE 605
GoodOver: UP RR
07-LA-605-R14.94, Los Angeles, CA
Built 1964 Load: 75.2 t ADT: 251,000
WASHINGTON BLV
GoodOver: LOS ANGELES RIVER
0.2 MI WEST OF SOTO ST, Los Angeles, CA
Built 1931 Load: 75.2 t ADT: 20,077
COUNTY ROAD 31
GoodOver: CHICKHOMINY SLOUGH
0.27 MI W OF C.R. 91A, Yolo, CA
Built 1976 Load: 75.2 t ADT: 586
STATE ROUTE 70
GoodOver: GRIZZLY CREEK
02-PLU-070-0.67, Plumas, CA
Built 1936 Load: 75.5 t ADT: 1,345
N5-J ST OFF RAMP
GoodOver: PEDESTRIAN WALKWAY
03-SAC-005-23.59-SAC, Sacramento, CA
Built 1968 Load: 75.8 t ADT: 12,000
BRADLEY AVE
GoodOver: PACOIMA WASH
0.4 MI NORTH FWY 118, Los Angeles, CA
Built 1954 Load: 76.1 t ADT: 2,860
AVE 23 1/2
GoodOver: ASH SLOUGH
0.7 MI EAST OF RD 10, Madera, CA
Built 1985 Load: 76.1 t ADT: 300
OXNARD STREET
GoodOver: TUJUNGA WASH (OXNARD ST)
CLDWTR CYN AV & OXNARD ST, Los Angeles, CA
Built 1952 Load: 76.5 t ADT: 38,600
VICTORY BLVD
GoodOver: TUJUNGA WASH
BTW MORSE AV & ETHEL AV, Los Angeles, CA
Built 1952 Load: 76.5 t ADT: 38,000
MARK W SPRING RD
GoodOver: MARK WEST CREEK
15.5 MI N/E INTX RDWD HY, Sonoma, CA
Built 1976 Load: 76.5 t ADT: 2,000
INTERSTATE 10
GoodOver: BIG DALTON WASH
07-LA-010-32.93-BWP, Los Angeles, CA
Built 1955 Load: 76.8 t ADT: 209,000
INTERSTATE 210
GoodOver: ABANDONED RR ROW
07-LA-210-R36.70-IRW, Los Angeles, CA
Built 1968 Load: 76.8 t ADT: 266,000
GLENOAKS BLVD
GoodOver: BURBANK WESTERN CHANNEL
ROSCOE BLVD, Los Angeles, CA
Built 1962 Load: 77.1 t ADT: 25,800
SHERMAN WAY
GoodOver: TUJUNGA WASH
BTW VARNA AV/ WOODMAN AVE, Los Angeles, CA
Built 1952 Load: 77.4 t ADT: 44,320
LOS GATOS ROAD
GoodOver: LOS GATOS CREEK
5.53 MI W OF DERRICK BL, Fresno, CA
Built 1974 Load: 77.8 t ADT: 200
M348 S FORK DR
GoodOver: S FORK KAWEAH RIVER
1.34 MI SE OF RD M347, Tulare, CA
Built 1956 Load: 77.8 t ADT: 575
WEST YALE LOOP
GoodOver: SAN DIEGO CREEK CHANNEL
0.2 MI SW BARRANCA PARKY, Orange, CA
Built 1979 Load: 78.4 t ADT: 5,500
MASTERSONS ROAD
GoodOver: KANGAROO CREEK
1.5 MI W GAZELLE CALLAHAN, Siskiyou, CA
Built 1975 Load: 80.4 t ADT: 185
CAJON BLVD
GoodOver: DEBRIS CONE CREEK
1.0 MI N SWARTOUT CYN RD, San Bernardino, CA
Built 1952 Load: 80.7 t ADT: 1,166
CLAYTON RD
GoodOver: PINE CREEK
300 FT EAST OF MARKET ST, Contra Costa, CA
Built 1981 Load: 83.6 t ADT: 12,000
W210-W2 CONNECTOR
GoodOver: VERDUGO BLVD
07-LA-210-R18.77-GNDL, Los Angeles, CA
Built 1972 Load: 83.6 t ADT: 8,000
ROSCOE BLVD
GoodOver: TUJUNGA WASH
0.6 MI E/O WOODMAN AVE, Los Angeles, CA
Built 1956 Load: 83.9 t ADT: 64,495
ROUTE 2
GoodOver: CHEVY CHASE DR
07-LA-002-R19.39-GNDL, Los Angeles, CA
Built 1978 Load: 84.6 t ADT: 115,000
COPCO ROAD
GoodOver: COTTONWOOD CREEK
0.9 MI EAST OF I-5, Siskiyou, CA
Built 1980 Load: 85.5 t ADT: 390
ALDER CREEK ROAD
GoodOver: SEASONAL STREAM
0.3 MI S LANDMARK DRIVE, Solano, CA
Built 2006 Load: 85.5 t ADT: 50
County Farm Road
GoodOver: Reservoir Feeder Canal
22 mi W of Yuma, Az, Imperial, CA
Built 2009 Load: 86.5 t ADT: 20
E. MONTE VISTA AVE
GoodOver: HORSE CREEK
NEAR JUNCT I-505 W I-80, Solano, CA
Built 1963 Load: 87.5 t ADT: 2,430
U.S. HIGHWAY 101
GoodOver: MONTECITO CREEK
05-SB-101-10.18, Santa Barbara, CA
Built 1956 Load: 87.9 t ADT: 76,000
SOLARI RANCH RD
GoodOver: CALAVERAS RIVER
0.5 MI N OF CHEROKEE RD, San Joaquin, CA
Built 1965 Load: 88.5 t ADT: 238
COFFEE ROAD NB
GoodOver: KERN RIVER
0.2 MI N TRUXTUN AVE, Kern, CA
Built 1981 Load: 88.8 t ADT: 30,000
IOWA HILL RD
GoodOver: N SHIRTTAIL CANYON CREEK
4 MI E OF IOWA HILL, Placer, CA
Built 1981 Load: 89.4 t ADT: 200
INTERSTATE 5 NB
GoodOver: NCTD,BNSF & AMTRAK,SCRRA
11-SD-005-R55.72R-OCN, San Diego, CA
Built 1967 Load: 89.7 t ADT: 156,000
NO DATA ENTERED
GoodOver: 051054000001005
S9 T1N R5E, Humboldt, CA
Built 1973 Load: 90.8 t ADT: 50
SOUTH RUSSIAN ROAD
GoodOver: SOUTH RUSSIAN CREEK
SAWYERS BAR, Siskiyou, CA
Built 1968 Load: 90.8 t ADT: 20
ARLETA AVE
GoodOver: TUJUNGA WASH
TRUESDALE ST & TONOPAH ST, Los Angeles, CA
Built 1968 Load: 92.3 t ADT: 13,000
OAK GROVE RD
GoodOver: PINE CREEK
0.5 MI N WALNUT AVE, Contra Costa, CA
Built 1974 Load: 92.7 t ADT: 6,600
INTERSTATE 505 NB
GoodOver: HORSE CREEK
04-SOL-505-R0.21-VAC, Solano, CA
Built 1963 Load: 93.0 t ADT: 16,750
INTERSTATE 210
GoodOver: BNSF RY
07-LA-210-R37.83-IRW, Los Angeles, CA
Built 1968 Load: 95.9 t ADT: 266,000
STATE ROUTE 169
GoodOver: PECWAN CREEK
01-HUM-169-14.46, Humboldt, CA
Built 1961 Load: 96.6 t ADT: 260
STATE ROUTE 128
GoodOver: WRAGG CREEK
04-NAP-128-27.90, Napa, CA
Built 1955 Load: 97.2 t ADT: 1,675
STATE ROUTE 150
GoodOver: HILLSIDE
07-VEN-150-28.92, Ventura, CA
Built 1979 Load: 97.2 t ADT: 3,250
U.S. HIGHWAY 101
GoodOver: HOLLY DR
07-LA-101-7.38-LA, Los Angeles, CA
Built 1952 Load: 99.8 t ADT: 154,000
INTERSTATE 710
GoodOver: UP RR
07-LA-710-17.58-SGT, Los Angeles, CA
Built 1957 Load: 99.8 t ADT: 223,000
INTERSTATE 710
GoodOver: BNSF RY,AMTRAK,METROLINK
07-LA-710-22.41-CMRC, Los Angeles, CA
Built 1954 Load: 99.8 t ADT: 217,000
INTERSTATE 210
GoodOver: SAWPIT WASH
07-LA-210-R34.60-MNRO, Los Angeles, CA
Built 1967 Load: 99.8 t ADT: 258,000
Showing 25,701-25,750 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 |