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
PALERMO-HONCUT HWY
GoodOver: BRANCH WYMAN RAVINE
0.6 MI S PALERMO RD, Butte, CA
Built 1974 Load: 34.0 t ADT: 2,423
MILLER ROAD
GoodOver: SALT CREEK
AT HAHN ROAD, Colusa, CA
Built 2003 Load: 34.0 t ADT: 59
U.S. HIGHWAY 199
GoodOver: MIDDLE FORK SMITH RIVER
01-DN-199-R17.06, Del Norte, CA
Built 1965 Load: 34.0 t ADT: 3,100
CO RD #21
GoodOver: TEHAMA-COLUSA CANAL
0.4 MI EAST OF CO RD 'M', Glenn, CA
Built 1975 Load: 34.0 t ADT: 123
CO RD 'M'
GoodOver: TEHAMA-COLUSA CANAL
0.3 MI NORTH CO RD #24, Glenn, CA
Built 1975 Load: 34.0 t ADT: 883
U.S. HIGHWAY 101
GoodOver: WILLIFORD ROAD
01-HUM-101-30.50, Humboldt, CA
Built 1961 Load: 34.0 t ADT: 5,450
STATE ROUTE 14 NB
GoodOver: UP RR & BNSF RY
09-KER-014-R15.30, Kern, CA
Built 1972 Load: 34.0 t ADT: 8,975
E&W118-S5 CONNECTR
GoodOver: PAXTON STREET
07-LA-118-R11.42L-LA, Los Angeles, CA
Built 1976 Load: 34.0 t ADT: 51,151
STATE ROUTE 14 SB
GoodOver: PURITAN MINE ROAD
07-LA-014-45.73, Los Angeles, CA
Built 1963 Load: 34.0 t ADT: 48,500
INTERSTATE 210
GoodOver: ORCAS AVENUE
07-LA-210-R8.55-LA, Los Angeles, CA
Built 1980 Load: 34.0 t ADT: 113,000
SPRING ST
GoodOver: SAN GABRIEL RIV
0.5MI W/O I-605 FWY, Los Angeles, CA
Built 1952 Load: 34.0 t ADT: 20,140
ARROW HWY
GoodOver: LIVE OAK WASH
0.6MI W/O WHITE AVE, Los Angeles, CA
Built 1950 Load: 34.0 t ADT: 23,192
VALLEY BLVD
GoodOver: SAN JOSE CRK
0.8MI E/O GRAND AVE, Los Angeles, CA
Built 1961 Load: 34.0 t ADT: 23,300
CAMPUS DR
GoodOver: ARCADIA WASH
0.5MI W/O SANTA ANITA AVE, Los Angeles, CA
Built 1957 Load: 34.0 t ADT: 9,724
LIVE OAK AVE
GoodOver: ARCADIA WASH
0.1MI E/O EL MONTE AVE, Los Angeles, CA
Built 1955 Load: 34.0 t ADT: 7,120
MEYER RD
GoodOver: COYOTE CRK NF
0.3MI N/O IMPERIAL HWY, Los Angeles, CA
Built 1961 Load: 34.0 t ADT: 7,140
INGLEWOOD BLVD
GoodOver: BALLONA CREEK
0.54MI N/O JEFFERSON BLVD, Los Angeles, CA
Built 1937 Load: 34.0 t ADT: 15,078
BROADWAY
GoodOver: EATON WASH
0.1MI W/O ROSEMEAD BLVD, Los Angeles, CA
Built 1967 Load: 34.0 t ADT: 14,420
FITCH AVE
GoodOver: MINT CYN WASH
260FT W/O SIERRA HWY, Los Angeles, CA
Built 2014 Load: 34.0 t ADT: 1,133
ROAD 603
GoodOver: WILLOW CREEK
0.2 MI W RD 407, Madera, CA
Built 1974 Load: 34.0 t ADT: 100
2ND ST
GoodOver: IRWIN CREEK
WEST SIDE RTE 101, Marin, CA
Built 1965 Load: 34.0 t ADT: 20,000
STATE ROUTE 162
GoodOver: EEL RIVER
01-MEN-162-8.25, Mendocino, CA
Built 1938 Load: 34.0 t ADT: 860
MOUNTAIN VIEW RD
GoodOver: ROBINSON CREEK
0.05 MILES FROM SR 128, Mendocino, CA
Built 1968 Load: 34.0 t ADT: 575
SANTA FE AVENUE
GoodOver: MARIPOSA CREEK
1.0 MI NW LE GRAND RD, Merced, CA
Built 1966 Load: 34.0 t ADT: 2,177
IRR CO RD 87
GoodOver: MAMATH SLOUGH
0.5 MI NE CR 91, Modoc, CA
Built 1955 Load: 34.0 t ADT: 255
INTERSTATE 80
GoodOver: EAGLE LAKES ROAD
03-NEV-080-R62.15L, Nevada, CA
Built 1964 Load: 34.0 t ADT: 14,250
SR 241 SB
GoodOver: WILDLIFE UC
12-ORA-241-36.70-ANA, Orange, CA
Built 1998 Load: 34.0 t ADT: 22,500
WINDING ROAD
GoodOver: LONG CANYON
NO DATA ENTERED, Placer, CA
Built 1961 Load: 34.0 t ADT: 50
STATE ROUTE 70
GoodOver: HUMBUG CREEK
02-PLU-070-73.99, Plumas, CA
Built 1969 Load: 34.0 t ADT: 6,200
INTERSTATE 10 WB
GoodOver: MCCOY WASH
08-RIV-010-R138.29, Riverside, CA
Built 1969 Load: 34.0 t ADT: 11,750
INTERSTATE 10 EB
GoodOver: MCCOY WASH
08-RIV-010-R138.29, Riverside, CA
Built 1969 Load: 34.0 t ADT: 11,750
INTERSTATE 10 WB
GoodOver: GALE DITCH
08-RIV-010-R136.15, Riverside, CA
Built 1969 Load: 34.0 t ADT: 11,750
INTERSTATE 10 EB
GoodOver: GALE DITCH
08-RIV-010-R136.15, Riverside, CA
Built 1969 Load: 34.0 t ADT: 9,500
INTERSTATE 10 WB
GoodOver: TEED DITCH
08-RIV-010-R133.99, Riverside, CA
Built 1969 Load: 34.0 t ADT: 9,500
INTERSTATE 10 EB
GoodOver: TEED DITCH
08-RIV-010-R133.99, Riverside, CA
Built 1969 Load: 34.0 t ADT: 9,500
ELDER CREEK RD
GoodOver: MORRISON CREEK
BTWN 65TH ST AND STKTN BL, Sacramento, CA
Built 1965 Load: 34.0 t ADT: 21,043
COLONY RD
GoodOver: BADGER CREEK
0.3 MI S OF ARNO RD, Sacramento, CA
Built 1960 Load: 34.0 t ADT: 560
INTERSTATE 40
GoodOver: CIRCLE DITCH
08-SBD-040-R52.12, San Bernardino, CA
Built 1968 Load: 34.0 t ADT: 16,300
INTERSTATE 15 SB
GoodOver: MOJAVE RIVER (BAKER)
08-SBD-015-R136.15, San Bernardino, CA
Built 1965 Load: 34.0 t ADT: 19,500
INTERSTATE 15 NB
GoodOver: MOJAVE RIVER (BAKER)
08-SBD-015-R136.13, San Bernardino, CA
Built 1965 Load: 34.0 t ADT: 19,500
INTERSTATE 8 WB
GoodOver: PINE VALLEY RD
11-SD-008-R43.53, San Diego, CA
Built 1974 Load: 34.0 t ADT: 8,900
DRAIS RD
GoodOver: SOUTH BRANCH CHANNEL A
0.8 MI S COPPEROPOLIS RD, San Joaquin, CA
Built 1972 Load: 34.0 t ADT: 314
STATE ROUTE 1
GoodOver: EL JARO CREEK
05-SB-001-13.34, Santa Barbara, CA
Built 1959 Load: 34.0 t ADT: 6,900
CATHEDRAL OAKS RD
GoodOver: SAN PEDRO CREEK
0.7 MI WEST OF FAIRVIEW, Santa Barbara, CA
Built 1970 Load: 34.0 t ADT: 8,535
LILAC LN
GoodOver: BUENA VISTA CREEK
NORTH TOLLIS AVE, Santa Barbara, CA
Built 1965 Load: 34.0 t ADT: 422
NB U.S. HWY 101
GoodOver: UP, AMTRAK & PRIVATE RD
04-SCL-101-R0.81, Santa Clara, CA
Built 1950 Load: 34.0 t ADT: 26,000
SAN ANTONIO ST
GoodOver: SILVER CREEK
0.4 MI SW OF I-680, Santa Clara, CA
Built 1974 Load: 34.0 t ADT: 10,430
STATE ROUTE 299
GoodOver: DRY CREEK
02-SHA-299-31.50, Shasta, CA
Built 1953 Load: 34.0 t ADT: 4,475
STATE ROUTE 118
GoodOver: SANTA CLARA RIVER
07-VEN-118-1.63, Ventura, CA
Built 1994 Load: 34.0 t ADT: 44,500
STATE ROUTE 65 NB
GoodOver: HUTCHINSON CREEK
03-YUB-065-R7.42, Yuba, CA
Built 1971 Load: 34.0 t ADT: 8,100
Showing 23,901-23,950 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.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |