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
HOLLISTER AVENUE
FairOver: TECOLOTITO CREEK
0.1 MI E LOS CARNEROS RD, Santa Barbara, CA
Built 1929 Load: 15.6 t ADT: 14,800
FREMONT AVE
FairOver: STEVENS CREEK (FREMONT)
0.2 MI W/O SR 85, Santa Clara, CA
Built 1911 Load: 15.6 t ADT: 14,369
MCCLELLAN RD
FairOver: STEVENS CREEK
E STEVENS CANYON RD, Santa Clara, CA
Built 1920 Load: 15.6 t ADT: 4,509
PRUNERIDGE AVE
FairOver: CALABAZAS CREEK
1500 FT E OF LAWRENCE EX, Santa Clara, CA
Built 1958 Load: 15.6 t ADT: 5,000
ALDERCROFT HTS RD
FairOver: HOOKER CREEK
2.12 MI S LOS GATOS SC RD, Santa Clara, CA
Built 1956 Load: 15.6 t ADT: 30
STEVENS CYN RD
FairOver: STEVENS CREEK
1.0 MI SW/O MT EDEN RD, Santa Clara, CA
Built 1947 Load: 15.6 t ADT: 810
WHITEHURST ROAD
FairOver: BODFISH CREEK
0.16 MI S/O HECKER PASS R, Santa Clara, CA
Built 1939 Load: 15.6 t ADT: 70
ALUM ROCK FALLS RD
FairOver: PENITENCIA CREEK
0.2 MI E PENITENCIA CR RD, Santa Clara, CA
Built 1925 Load: 15.6 t ADT: 690
JACK RABIT FLAT RD
FairOver: BURNEY CREEK
0.1 MI S SH 299, Shasta, CA
Built 1989 Load: 15.6 t ADT: 23
SOUTH SHORE DRIVE
FairOver: BOULDER CREEK
3.5 miles south of Hwy 29, Shasta, CA
Built 1996 Load: 15.6 t
MOUNTIAN HOUSE RD
FairOver: WOODRUFF/ROCK CREEK
0.5 MI S OF S.H 49, Sierra, CA
Built 1950 Load: 15.6 t ADT: 75
BAILEY HILL RD
FairOver: HUTTON CREEK
0.75 MI S/O RTE 5, Siskiyou, CA
Built 1915 Load: 15.6 t ADT: 25
GRANT STREET
FairOver: POLK ST
POLK ST, Solano, CA
Built 1943 Load: 15.6 t ADT: 2,561
ALEXANDER VALLEY R
FairOver: RUSSIAN RIVER - JIMTOWN
NORTH OF HEALDSBURG, Sonoma, CA
Built 1949 Load: 15.6 t ADT: 3,300
WATMAUGH ROAD
FairOver: NATHANSON CREEK
0.5 MI E SR 12, Sonoma, CA
Built 1920 Load: 15.6 t ADT: 1,000
NEELEY ROAD
FairOver: HILLSIDE
1.1 MI W S.H. 116, Sonoma, CA
Built 1930 Load: 15.6 t ADT: 3,000
FRANCE ST
FairOver: NATHANSON CREEK
0.1 MI E SR 12 SONOMA, Sonoma, CA
Built 1918 Load: 15.6 t ADT: 750
PETE MILLER ROAD
FairOver: DELTA-MENDOTA CANAL
1.7 MI W OF EASTIN ROAD, Stanislaus, CA
Built 1949 Load: 15.6 t ADT: 150
DUNTON ROAD
FairOver: SHIRLEY CREEK
1.6 MI E/O MILTON RD, Stanislaus, CA
Built 1935 Load: 15.6 t ADT: 37
CRABTREE ROAD
FairOver: M.I.D. MAIN CANAL
0.2 MI N/O SR 132, Stanislaus, CA
Built 1926 Load: 15.6 t ADT: 123
MANTON RD
FairOver: DIGGER CREEK
TEHAMA/SHASTA CO LINE, Tehama, CA
Built 1935 Load: 15.6 t ADT: 492
REEDS CREEK RD
FairOver: E FK OF N FK REEDS CREEK
AT JOHNSON ROAD, Tehama, CA
Built 1934 Load: 15.6 t ADT: 227
JOHNSON ROAD
FairOver: REEDS CREEK
1.5 MI W REEDS CREEK RD, Tehama, CA
Built 1930 Load: 15.6 t ADT: 80
FOREWARD ROAD
FairOver: LOVE BRANCH CREEK
7.6 MI E MANTON RD, Tehama, CA
Built 1971 Load: 15.6 t ADT: 162
MT SHASTA AVE
FairOver: NORTH FORK HALL CREEK
0.5 MI S/O CHITTENDEN RD, Tehama, CA
Built 1958 Load: 15.6 t ADT: 50
POWERHOUSE ROAD
FairOver: CANYON CREEK
0.7 MI NORTH OF SR 299, Trinity, CA
Built 1935 Load: 15.6 t ADT: 49
STATE ROUTE 245
FairOver: FRIANT-KERN CANAL
06-TUL-245-3.18, Tulare, CA
Built 1949 Load: 15.6 t ADT: 4,800
FRUITVALE RD
FairOver: ALTA CANAL
AT AVE 416, Tulare, CA
Built 1915 Load: 15.6 t ADT: 100
AVENUE 328
FairOver: FRIANT-KERN CANAL
0.3 MI WEST OF SR 245, Tulare, CA
Built 1949 Load: 15.6 t ADT: 420
ROAD 180
FairOver: COTTONWOOD CREEK
0.4 MI N OF A 352, Tulare, CA
Built 1937 Load: 15.6 t ADT: 240
M296
FairOver: NORTH FORK TULE RIVER
0.3 MI EAST OF M239, Tulare, CA
Built 1927 Load: 15.6 t ADT: 280
OLD STRWBRY RD
FairOver: S FK STANISLAUS RIVER
0.85 MI S/O SR 108, Tuolumne, CA
Built 1910 Load: 15.6 t ADT: 275
LIME KILN RD
FairOver: CURTIS CREEK
2.8 MI S/O CAMPO SECO RD, Tuolumne, CA
Built 1922 Load: 15.6 t ADT: 957
CEDAR SPRINGS RD
FairOver: TURNBACK CREEK
1.1 MI S TUOLUMNE RD, Tuolumne, CA
Built 1925 Load: 15.6 t ADT: 150
COUNTY ROAD 99W
FairOver: OAT CREEK
0.29 MI NW OF CR 91B, Yolo, CA
Built 1919 Load: 15.6 t ADT: 1,460
C.R. #25
FairOver: COTTONWOOD SLOUGH
0.14 MI W OF C.R. #86A, Yolo, CA
Built 1917 Load: 15.6 t ADT: 90
BLUE LAKES RD
FairOver: WEST FORK CARSON RIVER
3.0 MI SOUTH OF S.H. 88, Alpine, CA
Built 1960 Load: 15.9 t ADT: 400
SUTTER CREEK RD
FairOver: SUTTER CREEK
1.6 MI EAST OF MAIN ST, Amador, CA
Built 1925 Load: 15.9 t ADT: 1,800
CENTRAL HOUSE RD
FairOver: WYANDOTTE CREEK
0.8 MI W PLRMO-HONCUT HWY, Butte, CA
Built 1970 Load: 15.9 t ADT: 71
MILL CREEK CMPGRND
FairOver: MILL CREEK
DEL NORTE STATE PARK, Del Norte, CA
Built 1989 Load: 15.9 t ADT: 200
STATE ROUTE 168
FairOver: RANCHERIA CREEK
06-FRE-168-65.74, Fresno, CA
Built 1955 Load: 15.9 t ADT: 1,300
STATE ROUTE 36
FairOver: YAGER CREEK
01-HUM-036-4.86, Humboldt, CA
Built 1968 Load: 15.9 t ADT: 2,800
LERDO HIGHWAY
FairOver: UP RR
0.2 MI E OF ZERKER RD, Kern, CA
Built 1961 Load: 15.9 t ADT: 10,110
PETERSON RD
FairOver: FRIANT-KERN CANAL
0.3 MI WEST OF ZACHARY AV, Kern, CA
Built 1949 Load: 15.9 t ADT: 150
NEOPOLITAN LN W
FairOver: RIVO ALTO CANAL
400FT S/O THE TOLEDO W, Los Angeles, CA
Built 1976 Load: 15.9 t ADT: 612
ROSECRANS AVE
FairOver: SAN GABRIEL RIV
0.3MI W/O I-605 FWY, Los Angeles, CA
Built 1951 Load: 15.9 t ADT: 28,840
EASTSIDE DR
FairOver: RIDGE DITCH
0.1 MI E RD #11, Madera, CA
Built 1972 Load: 15.9 t ADT: 100
ORTIGALITA ROAD
FairOver: DELTA-MENDOTA CANAL
0.15 MI S ALMOND DR, Merced, CA
Built 1950 Load: 15.9 t ADT: 561
COTTONWOOD ROAD
FairOver: OUTSIDE CANAL
0.9 MI W OF SH 33, Merced, CA
Built 1915 Load: 15.9 t ADT: 344
WOO ROAD
FairOver: DELTA-MENDOTA CANAL
1.5 MI S COTTON GIN RD, Merced, CA
Built 1950 Load: 15.9 t ADT: 100
Showing 8,251-8,300 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.