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
GLEASON DRIVE
GoodOver: TASSAJARA CREEK
WEST OF CREEKVIEW DRIVE, Alameda, CA
Built 2001 Load: 32.4 t ADT: 6,000
GLEASON DRIVE
GoodOver: TASSAJARA CREEK
WEST OF CREEKVIEW DRIVE, Alameda, CA
Built 2001 Load: 32.4 t ADT: 6,000
W LAS POSITAS BLVD
GoodOver: TASSAJARA CREEK
WEST OF FIESTA DRIVE, Alameda, CA
Built 1982 Load: 32.4 t ADT: 10,000
ALVARADO-NILES RD
GoodOver: RR TRACKS: BART, UPRR
0.1 MI W OF LINDA DRIVE, Alameda, CA
Built 2017 Load: 32.4 t ADT: 13,300
HOPYARD ROAD
GoodOver: PLEASANTON CANAL
0.1 MI NW OF VALLEY AVE, Alameda, CA
Built 1974 Load: 32.4 t ADT: 15,000
LAUREL CREEK DRIVE
GoodOver: LAUREL CREEK
0.5 MILE W OF FOOTHILL RD, Alameda, CA
Built 2000 Load: 32.4 t ADT: 3,545
FAIRLANDS DR
GoodOver: G-3 CHANNEL
800 FT S OF PIMLICO DR, Alameda, CA
Built 1984 Load: 32.4 t ADT: 3,545
10TH STREET
GoodOver: LAKE MERRITT DRAIN
W OF 2ND AVE, Alameda, CA
Built 2017 Load: 32.4 t ADT: 3,000
FREMONT BLVD
GoodOver: SCOTT CREEK OVERFLOW
0.2 MI N OF DIXON LANDING, Alameda, CA
Built 2015 Load: 32.4 t ADT: 19,000
FREMONT BLVD
GoodOver: SCOTT CREEK
0.5 MI N OF DIXON LANDING, Alameda, CA
Built 2015 Load: 32.4 t ADT: 19,000
FREMONT BLVD
GoodOver: ACFC CHANNEL B
0.7 MI N OF DIXON LANDING, Alameda, CA
Built 2015 Load: 32.4 t ADT: 19,000
RUTHERFORD DRIVE
GoodOver: TASSAJARA CREEK
NW OF TASSAJARA RD, Alameda, CA
Built 2016 Load: 32.4 t ADT: 1,000
PALISADES DRIVE
GoodOver: MOLLER CREEK
NE OF TASSAJARA RD, Alameda, CA
Built 2017 Load: 32.4 t ADT: 1,000
CENTRAL AVE
GoodOver: ALAMEDA FLOOD CONTROL CH
AT WILLOW STREET, Alameda, CA
Built 2022 Load: 32.4 t ADT: 1,000
STATE ROUTE 4
GoodOver: NORTH FORK MOKELUMNE RIV
10-ALP-004-12.94, Alpine, CA
Built 1937 Load: 32.4 t ADT: 490
STATE ROUTE 4
GoodOver: SILVER CREEK
10-ALP-004-27.98, Alpine, CA
Built 1986 Load: 32.4 t ADT: 580
DOUGLAS WAY ROAD
GoodOver: WEST FORK CARSON RIVER
0.1 MILE NORTH OF SH 88, Alpine, CA
Built 1987 Load: 32.4 t ADT: 100
DIXON MINE RD
GoodOver: WOLF CREEK
4 MI SOUTHEAST OF SR4, Alpine, CA
Built 2019 Load: 32.4 t ADT: 280
STATE ROUTE 49
GoodOver: SUTTER CREEK
10-AMA-049-R8.32-STCK, Amador, CA
Built 2007 Load: 32.4 t ADT: 13,900
STATE ROUTE 49
GoodOver: AMADOR CREEK
10-AMA-049-R10.56, Amador, CA
Built 2007 Load: 32.4 t ADT: 13,900
STATE ROUTE 88
GoodOver: JACKSON CREEK OVERFLOW
10-AMA-088-2.94, Amador, CA
Built 2014 Load: 32.4 t ADT: 9,200
JIBBOOM ST
GoodOver: NORTH FORK DRY CREEK
200' N/O FIDDLESTOWN RD, Amador, CA
Built 1987 Load: 32.4 t ADT: 540
FIVE MILE DR
GoodOver: SUTTER CREEK
JNO MARLETTE ST, Amador, CA
Built 1989 Load: 32.4 t ADT: 222
COOK ROAD
GoodOver: DRY CREEK
1 KM W/O OLD STOCKTON RD, Amador, CA
Built 1998 Load: 32.4 t ADT: 150
CARBONDALE ROAD
GoodOver: WILLOW CREEK
0.6 MI SW/O SR 16, Amador, CA
Built 2005 Load: 32.4 t ADT: 523
FIDDLETOWN RD
GoodOver: NORTH FORK DRY CREEK
3.5 MI E/O SHENANDOAH RD, Amador, CA
Built 2007 Load: 32.4 t ADT: 1,576
BUNKER HILL ROAD
GoodOver: RANCHERIA CREEK
0.6 MI N/O SCHOOL ST, Amador, CA
Built 2017 Load: 32.4 t ADT: 145
BADGER STREET
GoodOver: SUTTER CREEK
0.1 MI W/O OLD RTE 49, Amador, CA
Built 2017 Load: 32.4 t ADT: 600
MAIN ST (OLD RT49)
GoodOver: SUTTER CREEK
1.1 MI N OF ROUTE 49, Amador, CA
Built 2019 Load: 32.4 t ADT: 3,750
WICKLOW WAY
GoodOver: ROCK CREEK
SOUTH OF ROUTE 88, Amador, CA
Built 1993 Load: 32.4 t ADT: 4,000
STATE ROUTE 99
GoodOver: DRAINAGE DITCH
03-BUT-099-6.11, Butte, CA
Built 1988 Load: 32.4 t ADT: 13,400
STATE ROUTE 149 SB
GoodOver: CLEAR CREEK
03-BUT-149-R3.96, Butte, CA
Built 2008 Load: 32.4 t ADT: 6,875
STATE ROUTE 99
GoodOver: DRY CHANNEL
03-BUT-099-30.24, Butte, CA
Built 1953 Load: 32.4 t ADT: 32,600
STATE ROUTE 99
GoodOver: SCRUB CREEK
03-BUT-099-27.84, Butte, CA
Built 1952 Load: 32.4 t ADT: 28,250
STATE ROUTE 99 SB
GoodOver: BUTTE CREEK
03-BUT-099-28.72, Butte, CA
Built 1989 Load: 32.4 t ADT: 14,125
STATE ROUTE 70
GoodOver: CAMPBELL CREEK
03-BUT-070-19.61, Butte, CA
Built 1963 Load: 32.4 t ADT: 20,700
STATE ROUTE 191
GoodOver: DRY CREEK
03-BUT-191-1.68, Butte, CA
Built 1986 Load: 32.4 t ADT: 5,100
STATE ROUTE 149
GoodOver: GOLD RUN CREEK
03-BUT-149-R1.26, Butte, CA
Built 1975 Load: 32.4 t ADT: 13,750
STATE ROUTE 191
GoodOver: FALLAGER CREEK
03-BUT-191-2.61, Butte, CA
Built 1999 Load: 32.4 t ADT: 5,100
STATE ROUTE 191
GoodOver: CLEAR CREEK
03-BUT-191-4.67, Butte, CA
Built 1999 Load: 32.4 t ADT: 6,100
STATE ROUTE 99
GoodOver: DRY CREEK
03-BUT-099-20.60, Butte, CA
Built 1998 Load: 32.4 t ADT: 9,600
STATE ROUTE 70
GoodOver: OAK KNOB DRAW
03-BUT-070-8.34, Butte, CA
Built 2022 Load: 32.4 t ADT: 17,000
RIVER ROAD
GoodOver: BIG CHICO CREEK
1.0 MI N/O CHICO RIVER RD, Butte, CA
Built 2001 Load: 32.4 t ADT: 563
COLONY RD
GoodOver: WESTERN CANAL
0.55 MI N NELSON RD, Butte, CA
Built 1990 Load: 32.4 t ADT: 25
CENTERVILLE ROAD
GoodOver: BUTTE CREEK
NE OF RTE 99, Butte, CA
Built 2002 Load: 32.4 t ADT: 500
GARNER LANE
GoodOver: KEEFER SLOUGH
1.41 MI N STATE HWY 99E, Butte, CA
Built 1992 Load: 32.4 t ADT: 4,389
FEATHER RIVER BLVD
GoodOver: DRY CREEK
0.3 MI N GEORGIA PACFC WY, Butte, CA
Built 1986 Load: 32.4 t ADT: 3,930
FARRIS ROAD
GoodOver: DRAINAGE CANAL
0.5 MI N COLUSA HWY, Butte, CA
Built 1991 Load: 32.4 t ADT: 89
TABLE MTN BLVD
GoodOver: FEATHER RIVER
NW MNTGMRY ST IN ORVILE, Butte, CA
Built 1982 Load: 32.4 t ADT: 11,612
W. SACRAMENTO AVE
GoodOver: KUSAL SLOUGH (ROCK CRK)
0.25 MI EAST OF RIVER RD, Butte, CA
Built 2002 Load: 32.4 t ADT: 3,463
Showing 20,001-20,050 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.