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
CHANNEL DRIVE
PoorOver: LAKE
0.1 MI N LAKE BLVD, Alameda, CA
Built 1966 Load: 24.3 t ADT: 390
CUSHING PARKWAY
PoorOver: LAGUNA CR(FLD CNTRL L E)
0.14 MI W OF FREMONT BLVD, Alameda, CA
Built 1956 Load: 24.3 t ADT: 24,500
E 5TH AVE (CHICO)
PoorOver: LINDO CHANNEL
AT E. LINDO AVENUE, Butte, CA
Built 1970 Load: 24.3 t ADT: 7,848
OLD 99W
PoorOver: STONE CORRAL CREEK
0.6 MI N MXWL-SITES RD, Colusa, CA
Built 1927 Load: 24.3 t ADT: 1,976
FOUR MILE RD
PoorOver: LOGAN CREEK
0.7 MI N OF DELEVAN RD, Colusa, CA
Built 1965 Load: 24.3 t ADT: 31
ST FRANCIS DR
PoorOver: GALINDO CREEK
0.1 MI E OAK GROVE RD, Contra Costa, CA
Built 1950 Load: 24.3 t ADT: 450
SECOND AVE SOUTH
PoorOver: GRAYSON CREEK
JUST W CONTRA COSTA BLVD, Contra Costa, CA
Built 1954 Load: 24.3 t ADT: 3,419
CAMINO SOBRANTE
PoorOver: SAN PABLO CREEK
75 FT E CAMINO PABLO, Contra Costa, CA
Built 1955 Load: 24.3 t ADT: 2,514
JERSEY ISLAND RD
PoorOver: DUTCH SLOUGH
1.5 MILES N OF CYPRESS RD, Contra Costa, CA
Built 1949 Load: 24.3 t ADT: 188
NORTH LAKE DRIVE
PoorOver: LAKE ALHAMBRA
AT EAST 13TH ST, Contra Costa, CA
Built 1961 Load: 24.3 t ADT: 1,500
CHAPMAN STREET
PoorOver: HOPPOW CREEK
WEST OF ROUTE 101/169 SEP, Del Norte, CA
Built 1965 Load: 24.3 t ADT: 20
E SHIELDS AVE
PoorOver: DRY CREEK CANAL
0.1 MI WEST OF MILLBROOK, Fresno, CA
Built 1962 Load: 24.3 t ADT: 27,039
COUNTY ROAD Z
PoorOver: ANGEL SLOUGH
0.8 MI N OF CO RD #67, Glenn, CA
Built 1950 Load: 24.3 t ADT: 176
SIERRA HWY
PoorOver: UNNAMED WASH
2.0MI S/O KERN CO LINE, Los Angeles, CA
Built 1921 Load: 24.3 t ADT: 3,838
WILMINGTON AV 223
PoorOver: DOMINGUEZ CHAN
0.8MI S/O CARSON ST, Los Angeles, CA
Built 1963 Load: 24.3 t ADT: 33,600
SANTA FE BLVD
PoorOver: BERENDA SLOUGH
0.2 MI N/W OF AVE 27, Madera, CA
Built 1968 Load: 24.3 t ADT: 259
6TH STREET
PoorOver: MARIPOSA CREEK
AT STROMING ROAD, Mariposa, CA
Built 1950 Load: 24.3 t ADT: 1,080
STATE ROUTE 165
PoorOver: CCID MAIN CANAL
10-MER-165-7.17, Merced, CA
Built 1923 Load: 24.3 t ADT: 1,800
16TH STREET
PoorOver: BEAR CREEK OVERFLOW
0.2 MI SE OF G STREET, Merced, CA
Built 1938 Load: 24.3 t ADT: 2,500
FOREST ROAD 62
PoorOver: WOLF CREEK
3 MI EAST OF SH 108, Mono, CA
Built 1979 Load: 24.3 t ADT: 20
AVENIDA PICO
PoorOver: SEGUNDA DESHECHA CANADA
200' N/O EL CAMINO REAL, Orange, CA
Built 1971 Load: 24.3 t ADT: 12,000
DELANO DRIVE
PoorOver: STRAWBERRY CREEK
0.2 MI. N/O TOLL GATE RD., Riverside, CA
Built 1958 Load: 24.3 t ADT: 500
35TH AVENUE
PoorOver: PALO VERDE LAGOON
1.5 MI. E/O RTE. 78 HWY., Riverside, CA
Built 1960 Load: 24.3 t ADT: 800
DEVORE ROAD
PoorOver: KIMBARK CREEK
0.5 N/O INTERSTATE 215, San Bernardino, CA
Built 1959 Load: 24.3 t ADT: 7,500
U.S. HIGHWAY 101
PoorOver: CORDILLERAS CREEK
04-SM-101-7.13-RDWC, San Mateo, CA
Built 1930 Load: 24.3 t ADT: 195,000
CARIBBEAN DR
PoorOver: SUNNYVALE EAST CHANNEL
0.2 MI E CROSSMAN AVE, Santa Clara, CA
Built 1961 Load: 24.3 t ADT: 6,261
CARIBBEAN DR
PoorOver: SUNNYVALE EAST CHANNEL
0.2 MI E CROSSMAN AVE, Santa Clara, CA
Built 1961 Load: 24.3 t ADT: 7,192
LOCHINVAR AVE
PoorOver: CALABAZAS CREEK
WEST OF LAWRENCE EXPY, Santa Clara, CA
Built 1968 Load: 24.3 t ADT: 2,000
WESTSIDE RD
PoorOver: SOUTH BRANCH CARMAN CRK
NORTH OF CALPINE AREA, Sierra, CA
Built 1950 Load: 24.3 t ADT: 670
WESTSIDE RD
PoorOver: NORTH BRANCH CARMAN CRK
6.1 MI N SR 89 & 49, Sierra, CA
Built 1950 Load: 24.3 t ADT: 670
SNYDER LN
PoorOver: CRANE CRK (SNYDER)
0.7 MI N ROHNERT PARK EXP, Sonoma, CA
Built 1965 Load: 24.3 t ADT: 1,500
SEAVEY RD
PoorOver: NO NAME CREEK
0.4 MI W SPRING HILL RD, Sonoma, CA
Built 1960 Load: 24.3 t ADT: 200
SANTA ROSA AVENUE
PoorOver: COLGAN CREEK
SOUTH OF COLGAN AVENUE, Sonoma, CA
Built 1963 Load: 24.3 t ADT: 29,487
CLARK RD
PoorOver: SUTTER-BUTTE CNL S BRNCH
0.1 MI W OF MADDEN RD, Sutter, CA
Built 1950 Load: 24.3 t ADT: 690
OLD HWY 99 W
PoorOver: MOORE CREEK
1.2 MI N GLENN CO LINE, Tehama, CA
Built 1914 Load: 24.3 t ADT: 1,922
OLD HWY 99 W
PoorOver: BRANNIN CREEK
5.7 MI N GLENN CO LINE, Tehama, CA
Built 1914 Load: 24.3 t ADT: 2,799
ROAD 100
PoorOver: TULARE CANAL
0.5 MI NORTH OF AVE 264, Tulare, CA
Built 1952 Load: 24.3 t ADT: 550
ROAD
PoorOver: MID FK APPLEGATE
NO DATA ENTERED, Siskiyou, CA
Built 1963 Load: 24.5 t ADT: 10
SANTA FE BLVD
PoorOver: ASH SLOUGH
0.36 MI N OF AVE 27, Madera, CA
Built 1956 Load: 24.6 t ADT: 259
DAN MCNAMARA ROAD
PoorOver: DEADMAN CREEK
0.8 MI N SANDY MUSH ROAD, Merced, CA
Built 1960 Load: 24.6 t ADT: 400
INTERSTATE 5 SB
PoorOver: BEACH LAKE
03-SAC-005-12.92, Sacramento, CA
Built 1975 Load: 24.6 t ADT: 46,500
INTERSTATE 5 NB
PoorOver: BEACH LAKE
03-SAC-005-12.93, Sacramento, CA
Built 1975 Load: 24.6 t ADT: 46,500
SHORE ROAD
PoorOver: TEQUISQUITA CREEK
0.05 MI E FRAZER LAKE RD, San Benito, CA
Built 1948 Load: 24.6 t ADT: 6,500
INTERSTATE 40
PoorOver: NEWTON WASH
08-SBD-040-R103.39, San Bernardino, CA
Built 1970 Load: 24.6 t ADT: 7,500
INTERSTATE 40 EB
PoorOver: NEWTON WASH
08-SBD-040-R103.39, San Bernardino, CA
Built 1970 Load: 24.6 t ADT: 7,500
COAST HIGHWAY
PoorOver: LOMA ALTA CREEK
0.3MI S/O OCEANSIDE BLVD, San Diego, CA
Built 2003 Load: 24.6 t ADT: 22,100
STATE ROUTE 1
PoorOver: SANTA MARIA RIVER
05-SLO-001-0.01, San Luis Obispo, CA
Built 1955 Load: 24.6 t ADT: 5,000
WALNUT AVE
PoorOver: SANTA MARGARITA CREEK
BTWN PINE AV & CHSTNUT AV, San Luis Obispo, CA
Built 1940 Load: 24.6 t ADT: 271
STATE ROUTE 128
PoorOver: PUTAH CREEK
04-SOL-128-0.72, Solano, CA
Built 1954 Load: 24.6 t ADT: 2,600
LAS POSAS ROAD
PoorOver: DISTRICT #2 CANAL
NBVC POINT MUGU, Ventura, CA
Built 1948 Load: 24.6 t ADT: 200
Showing 26,251-26,300 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 |