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
IRR BIA RTE 159
GoodOver: NORTH FORK BISHOP CREEK
WEST SIDE OF BISHOP, Inyo, CA
Built 1975 Load: 32.7 t ADT: 200
STATE ROUTE 178 EB
GoodOver: ELIZABETH NORRIS ROAD
06-KER-178-R41.64, Kern, CA
Built 1974 Load: 32.7 t ADT: 2,100
E Refuge Bound. Rd
GoodOver: Poso Creek
S.E. corner of refuge., Kern, CA
Built 2013 Load: 32.7 t ADT: 1
STATE ROUTE 1
GoodOver: BIKEWAY
07-LA-001-23.79-MANB, Los Angeles, CA
Built 1930 Load: 32.7 t ADT: 60,000
INTERSTATE 210
GoodOver: LITTLE TUJUNGA WASH
07-LA-210-R8.28-LA, Los Angeles, CA
Built 1980 Load: 32.7 t ADT: 113,000
HACIENDA BLVD
GoodOver: SAN JOSE CRK
6.0MI N/O WHITTIER BL, Los Angeles, CA
Built 1964 Load: 32.7 t ADT: 41,856
BOUQUET CYN RD SX
GoodOver: BOUQUET CYN CRK
0.8MI N/O SOLEDAD CYN RD, Los Angeles, CA
Built 1972 Load: 32.7 t ADT: 53,590
CANDLEWOOD ST
GoodOver: DOWNEY AVE DRN
200FT E/O DOWNEY AVE, Los Angeles, CA
Built 1960 Load: 32.7 t ADT: 14,639
TUJUNGA AVE
GoodOver: LOS ANGELES RIVER
BTWN DILING ST & VNTRA B, Los Angeles, CA
Built 1949 Load: 32.7 t ADT: 20,856
PALM DR
GoodOver: ARCADIA WASH
0.1MI E/O EL MONTE AVE, Los Angeles, CA
Built 1955 Load: 32.7 t ADT: 1,224
GROVE ST
GoodOver: THOMPSON CRK
0.3MI W/O GAREY AVE, Los Angeles, CA
Built 1965 Load: 32.7 t ADT: 1,500
HERMOSA AVE
GoodOver: PICKENS CYN CHAN
0.1MI W/O ROSEMONT AVE, Los Angeles, CA
Built 1935 Load: 32.7 t ADT: 1,020
FS RD 3N24.1
GoodOver: BIG TUJUNGA CREEK
2.0 MI S.OF ANGELES F.HWY, Los Angeles, CA
Built 1947 Load: 32.7 t ADT: 10
25TH STREET ENTRY
GoodOver: DRAINAGE DITCH
0.1 miles north of 25th S, Los Angeles, CA
Built 1954 Load: 32.7 t ADT: 40
ROAD 8
GoodOver: ASH SLOUGH
0.3 MILES SOUTH OF AVE 22, Madera, CA
Built 1969 Load: 32.7 t ADT: 260
SKY RANCH ROAD
GoodOver: SIPHON MID DITCH
NO DATA ENTERED, Madera, CA
Built 2015 Load: 32.7 t ADT: 100
IRR BIA RTE 76
GoodOver: MUD CREEK
7 KM NE OF ALTURAS, Modoc, CA
Built 1995 Load: 32.7 t ADT: 10
US HIGHWAY 395 SB
GoodOver: MAMMOTH CREEK
09-MNO-395-R24.97, Mono, CA
Built 1969 Load: 32.7 t ADT: 8,450
US HIGHWAY 395 NB
GoodOver: MAMMOTH CREEK
09-MNO-395-R24.96, Mono, CA
Built 1969 Load: 32.7 t ADT: 7,000
US HIGHWAY 101 NB
GoodOver: PARIS VALLEY ROAD
05-MON-101-R21.99, Monterey, CA
Built 1971 Load: 32.7 t ADT: 7,200
MISSION RD
GoodOver: DRAIN FROM ENGR RESRV
S SULPHUR SPRING CANYON, Monterey, CA
Built 1994 Load: 32.7 t ADT: 50
GOLF ROAD
GoodOver: BOLSA CHICA CHANNEL
NWS SEAL BEACH, Orange, CA
Built 1966 Load: 32.7 t ADT: 50
STATE ROUTE 91
GoodOver: BNSF RY,AMTRAK,METROLINK
12-ORA-091-4.05-ANA, Orange, CA
Built 1959 Load: 32.7 t ADT: 265,000
INTERSTATE 10 EB
GoodOver: QUARTZ DITCH
08-RIV-010-R108.28, Riverside, CA
Built 1966 Load: 32.7 t ADT: 21,400
INTERSTATE 10 WB
GoodOver: BROWN ARROYO
08-RIV-010-R68.29, Riverside, CA
Built 1964 Load: 32.7 t ADT: 11,250
WINCHESTER-N15 ON
GoodOver: SANTA GERTRUDIS CREEK
08-RIV-015-6.73-TMCA, Riverside, CA
Built 1976 Load: 32.7 t ADT: 9,000
INTERSTATE 10
GoodOver: TARANTULA DITCH
08-RIV-010-R116.78, Riverside, CA
Built 1966 Load: 32.7 t ADT: 10,700
INTERSTATE 10 EB
GoodOver: TARANTULA DITCH
08-RIV-010-R116.78, Riverside, CA
Built 1966 Load: 32.7 t ADT: 10,700
INTERSTATE 10
GoodOver: RUBBLE DITCH
08-RIV-010-R120.74, Riverside, CA
Built 1966 Load: 32.7 t ADT: 10,700
INTERSTATE 15 SB
GoodOver: WASSON CANYON WASH
08-RIV-015-21.57, Riverside, CA
Built 1982 Load: 32.7 t ADT: 61,000
PRAIRIE CITY ROAD
GoodOver: ALDER CREEK
0.1 MI S OF U.S. 50, Sacramento, CA
Built 1967 Load: 32.7 t ADT: 968
ROUTE 40 E BOUND
GoodOver: NEBO STREET
08-SBD-040-R4.71, San Bernardino, CA
Built 1964 Load: 32.7 t ADT: 9,850
RIVERSIDE DR
GoodOver: CUCAMONGA CREEK CHANNEL
0.2 MI W ARCHIBALD AVE, San Bernardino, CA
Built 1979 Load: 32.7 t ADT: 15,943
GOLDSTONE RD
GoodOver: STORM DRAINAGE CHANNEL
NEAR RHINELAND DRIVE, San Bernardino, CA
Built 1960 Load: 32.7 t ADT: 1,300
WTP ROAD
GoodOver: STORM DRAINAGE
COLDSTONE ROAD, San Bernardino, CA
Built 2016 Load: 32.7 t ADT: 50
WTP RD
GoodOver: STORM DRAINAGE
COLDSTONE RD, San Bernardino, CA
Built 2016 Load: 32.7 t ADT: 50
SIDEWINDER RD.
GoodOver: CREEK
NWSSBFA, San Diego, CA
Built 1990 Load: 32.7 t ADT: 1
FOURTH STREET
GoodOver: PALETA CREEK
3/4MI N OF RECREATION WAY, San Diego, CA
Built 1997 Load: 32.7 t ADT: 100
DIVISION STREET
GoodOver: PALETA CREEK
1/4MI N OF RECREATION WAY, San Diego, CA
Built 1997 Load: 32.7 t ADT: 50
INTERSTATE 5
GoodOver: OTAY RIVER
11-SD-005-5.01-SD, San Diego, CA
Built 1952 Load: 32.7 t ADT: 143,000
STATE ROUTE 88
GoodOver: MOKELUMNE RIVER
10-SJ-088-19.80, San Joaquin, CA
Built 1954 Load: 32.7 t ADT: 15,000
EIGHT MILE RD
GoodOver: CALAVERAS RIVER
1.4 MI WEST OF SH 88, San Joaquin, CA
Built 1963 Load: 32.7 t ADT: 4,504
KETTLEMAN LANE
GoodOver: BEAR CREEK
0.1 MI E OF S.R. 88, San Joaquin, CA
Built 1964 Load: 32.7 t ADT: 1,253
SAN SIMEON CRK RD
GoodOver: SAN SIMEON CREEK
5.7 MI E OF SR 1, San Luis Obispo, CA
Built 1964 Load: 32.7 t ADT: 670
LAS PILITAS RD
GoodOver: PILITAS CREEK
3.8 MI E SANTA MARG RD, San Luis Obispo, CA
Built 1930 Load: 32.7 t ADT: 262
13TH STREET
GoodOver: SANTA YNEZ RIVER
0.5 MILE FROM 13TH STREET, Santa Barbara, CA
Built 2017 Load: 32.7 t ADT: 3,000
QUITO ROAD
GoodOver: SAN TOMAS CREEK
NEAR BICKNELL ROAD, Santa Clara, CA
Built 1993 Load: 32.7 t ADT: 5,780
INTERSTATE 5 SB
GoodOver: ANTLER ROAD
02-SHA-005-R41.05, Shasta, CA
Built 1972 Load: 32.7 t ADT: 8,600
CASSEL ROAD
GoodOver: RISING RIVER
2 MI. NE OF ROUTE 89, Shasta, CA
Built 1964 Load: 32.7 t ADT: 200
MINERS CREEK ROAD
GoodOver: FRENCH CREEK
0.1 MI E FRENCH CREEK RD, Siskiyou, CA
Built 1967 Load: 32.7 t ADT: 62
Showing 23,701-23,750 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 |