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
KOSTER ROAD
FairOver: DELTA-MENDOTA CANAL
1.6 MI N GAFFERY RD, San Joaquin, CA
Built 1950 Load: 17.5 t ADT: 400
BURTON RD
FairOver: SANTA ROSA CREEK
0.15 MI S MAIN ST CAMBRI, San Luis Obispo, CA
Built 1968 Load: 17.5 t ADT: 4,125
MASON ST
FairOver: ARROYO GRANDE CREEK
0.1 MI S OF SR 227, San Luis Obispo, CA
Built 1926 Load: 17.5 t ADT: 5,546
PORTOLA RD
FairOver: ATASCADERO CREEK
0.1 MI WEST OF SR 41, San Luis Obispo, CA
Built 1950 Load: 17.5 t ADT: 3,500
EAST CABRILLO BLVD
FairOver: LAGUNA CHANNEL
0.1 MI E STA. BARBARA ST, Santa Barbara, CA
Built 1999 Load: 17.5 t ADT: 12,400
STEVENS CYN RD
FairOver: STEVENS CREEK
0.8 MI SW/O MT EDEN RD, Santa Clara, CA
Built 1957 Load: 17.5 t ADT: 810
EAST CALLAHAN ROAD
FairOver: EAST FORK SCOTT RIVER
0.2 M NE/O SR 3, Siskiyou, CA
Built 1956 Load: 17.5 t ADT: 213
CHALK HILL RD
FairOver: MAACAMA CREEK
1 MI S OF SR 128, Sonoma, CA
Built 1915 Load: 17.5 t ADT: 800
HAZELDEAN ROAD
FairOver: M.I.D. MAIN CANAL
0.2 MI N/O SR 132, Stanislaus, CA
Built 1927 Load: 17.5 t ADT: 379
WARNERVILLE ROAD
FairOver: DRY CREEK TRIBUTARY
1.0 MI NW JCT TIM BELL RD, Stanislaus, CA
Built 1930 Load: 17.5 t ADT: 170
CHURCH STREET
FairOver: M.I.D. LATERAL #3
0.5 MI N/O PARKER RD, Stanislaus, CA
Built 1925 Load: 17.5 t ADT: 1,500
BREWER RD
FairOver: YANKEE SLOUGH
0.3 MI S BEAR RIVER DR, Sutter, CA
Built 1964 Load: 17.5 t ADT: 112
STATE ROUTE 99
FairOver: SALT CREEK
02-TEH-099-24.84, Tehama, CA
Built 1924 Load: 17.5 t ADT: 11,000
COLUMBIA AVE
FairOver: JEWETT CREEK
0.5 MI N OF SOUTH AVE, Tehama, CA
Built 1948 Load: 17.5 t ADT: 245
M 112
FairOver: DEER CREEK
13.9 MI SE OF M120, Tulare, CA
Built 1930 Load: 17.5 t ADT: 25
WARDS FERRY RD
FairOver: TUOLUMNE RIVER
7.2 MI NORTH OF SR 120, Tuolumne, CA
Built 1971 Load: 17.5 t ADT: 120
C.R. 26
FairOver: WINTERS CANAL
0.46 MI E OF CR 87, Yolo, CA
Built 1936 Load: 17.5 t ADT: 123
LOS BUEYOS ROAD
FairOver: LOS BUEYOS CREEK
BETWEEN SEC 19/23, Monterey, CA
Built 1994 Load: 17.6 t ADT: 1
ACCESS ROAD
FairOver: DRAINAGE ENGINEER RESRV
N DPW ON FENCE SEC 13W, Monterey, CA
Built 2002 Load: 17.6 t ADT: 1
OAKLAND AVENUE
FairOver: LINDA AVENUE
LINDA AVENUE, Alameda, CA
Built 1911 Load: 17.8 t ADT: 8,058
OROVILLE GRIDLEY H
FairOver: FEATHER RIVER
1 MI E OF LARKIN RD, Butte, CA
Built 1965 Load: 17.8 t ADT: 5,200
CROUCH AVE
FairOver: COMANCHE CREEK
STEVENS AVE, Butte, CA
Built 1940 Load: 17.8 t ADT: 213
NELSON BAR RD
FairOver: HODDAP CREEK
2.7 MI W CONCOW RD, Butte, CA
Built 1927 Load: 17.8 t ADT: 43
RIVER ROAD
FairOver: COLUSA WEIR
1.3 MI NORTH OF COLUSA, Colusa, CA
Built 1933 Load: 17.8 t ADT: 1,224
N. BROADWAY
FairOver: WALNUT CREEK
B/W LINCOLN & DUNCAN ST., Contra Costa, CA
Built 1971 Load: 17.8 t ADT: 20,905
W HERNDON AVE
FairOver: 3RD LIFT CANAL
0.3 MI EAST OF JERROLD AV, Fresno, CA
Built 1944 Load: 17.8 t ADT: 125
ROAD 67
FairOver: BRANCH HOWARD SLOUGH
1.3 MI EAST OF ROAD Z, Glenn, CA
Built 1937 Load: 17.8 t ADT: 93
BERTA RD
FairOver: ELK RIVER
0.14 MI W ELK RIVER RD, Humboldt, CA
Built 1936 Load: 17.8 t ADT: 518
ALBERT ETTER RA RD
FairOver: BEAR CREEK
0.2 MI SW/O ETRSBG-HNYDW, Humboldt, CA
Built 1985 Load: 17.8 t ADT: 50
AVE 15 1/2
FairOver: MID CANAL (AVE 15 1/2)
0.2 MI E RD 28 1/2, Madera, CA
Built 1953 Load: 17.8 t ADT: 737
ALEXANDER AVENUE
FairOver: EAST ROAD
1.3 KM EAST OF SR 101, Marin, CA
Built 1938 Load: 17.8 t ADT: 7,201
WILDERNESS LDGE RD
FairOver: DUTCH CHARLIE CREEK
0.7 MI N OF BRANSCOMB RD, Mendocino, CA
Built 1969 Load: 17.8 t ADT: 104
HEARST-WILLITS RD
FairOver: HAEHL CREEK
0.8 MI E JCT SR 101, Mendocino, CA
Built 1952 Load: 17.8 t ADT: 1,375
HEARST-WILLITS RD
FairOver: DAVIS CREEK
1.3 MI E SH 101, Mendocino, CA
Built 1950 Load: 17.8 t ADT: 1,648
CANYON ROAD
FairOver: DELTA-MENDOTA CANAL
0.4 MI S SUNSET AVE, Merced, CA
Built 1950 Load: 17.8 t ADT: 830
COUNTY ROAD 75
FairOver: PIT RIVER
0.3 MI SOUTH OF SR 299, Modoc, CA
Built 1919 Load: 17.8 t ADT: 202
GLADDINGS RD
FairOver: DOTY RAVINE
0.9 MI N OF WISE RD, Placer, CA
Built 1935 Load: 17.8 t ADT: 789
JOHN SCOTT TRAIL
FairOver: BEAR CREEK
0.1 MI S ALPINE MEADOW RD, Placer, CA
Built 1950 Load: 17.8 t ADT: 450
KEDDIE RESORT ROAD
FairOver: SPANISH CREEK
AT SR 70, Plumas, CA
Built 1914 Load: 17.8 t ADT: 140
I STREET
FairOver: UP RR, BNSF, AMTRAK, ETC
BTWN I-5 & SACRAMENTO RIV, Sacramento, CA
Built 1936 Load: 17.8 t ADT: 4,995
RADFORD CAMP RD
FairOver: SANTA ANA RIVER
0.1 MI N SEVEN OAKS RD, San Bernardino, CA
Built 1950 Load: 17.8 t ADT: 26
STATE ROUTE 1
FairOver: STENNER CREEK
05-SLO-001-17.05-SLO, San Luis Obispo, CA
Built 1920 Load: 17.8 t ADT: 25,000
TURNPIKE ROAD
FairOver: UP RR & AMTRAK
S SR 101, Santa Barbara, CA
Built 1961 Load: 17.8 t ADT: 29,187
AUGUSTA ST
FairOver: SAN ANTONIO CREEK
0.2 MI N OF SH 135, Santa Barbara, CA
Built 1962 Load: 17.8 t ADT: 428
W BAYSHORE RD
FairOver: ADOBE CREEK
NEAR ADOBE CREEK TRAIL, Santa Clara, CA
Built 1959 Load: 17.8 t ADT: 12,000
WARBURTON AVE
FairOver: SARATOGA CREEK
SHAMROC AV AND RAVIZZA AV, Santa Clara, CA
Built 1959 Load: 17.8 t ADT: 1,120
ARROYO HONDO ROAD
FairOver: ARROYO HONDO CREEK
6.3 MI FROM FELTER RD, Santa Clara, CA
Built 1980 Load: 17.8 t ADT: 10
MOINE ROAD
FairOver: SLATE CREEK
0.1 MI E SLATE CREEK RD, Shasta, CA
Built 1927 Load: 17.8 t ADT: 52
TAMARACK ROAD
FairOver: OLD COW CREEK
0.5 MI E OF LUMBER RD, Shasta, CA
Built 2001 Load: 17.8 t ADT: 20
PEARL STREET
FairOver: DOWNIE RIVER
DOWNIEVILLE, Sierra, CA
Built 1934 Load: 17.8 t ADT: 100
Showing 8,951-9,000 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.