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
U.S. HIGHWAY 101
FairOver: SIXTH STREET
04-SON-101-20.20-SRO, Sonoma, CA
Built 2009 Load: 32.4 t ADT: 96,000
US HIGHWAY 101
FairOver: COMMERCE BLVD & NWPRR
04-SON-101-15.03-RNPK, Sonoma, CA
Built 2012 Load: 32.4 t ADT: 92,000
STATE ROUTE 12
FairOver: LAGUNA DE SANTA ROSA
04-SON-012-9.63-SEB, Sonoma, CA
Built 2017 Load: 32.4 t ADT: 23,050
U.S. ROUTE 101 SB
FairOver: SMART RAILROAD TRACKS
04-SON-101-5.73-PET, Sonoma, CA
Built 2022 Load: 32.4 t ADT: 51,500
U.S. ROUTE 101
FairOver: FUTURE RAINIER AVENUE
04-SON-101-5.58-PET, Sonoma, CA
Built 2022 Load: 32.4 t ADT: 103,000
HEALDSBURG AVE
FairOver: RUSSIAN RIVER
35.2 MI N MARIN CO LINE, Sonoma, CA
Built 1921 Load: 32.4 t ADT: 8,204
KINLEY DR
FairOver: WEST NORTON SLOUGH
35.7 MI N MARIN CO LINE, Sonoma, CA
Built 1960 Load: 32.4 t ADT: 1,000
TOMALES RD
FairOver: STEMPLE CREEK
0.9 MI E COUNTY LINE, Sonoma, CA
Built 1970 Load: 32.4 t ADT: 3,000
A STREET
FairOver: SANTA ROSA CREEK
BETWN SONOMA AVE FIRST ST, Sonoma, CA
Built 1987 Load: 32.4 t ADT: 5,000
ARNOLD DR
FairOver: FELDER CREEK
1.5 MI N OF SR 116, Sonoma, CA
Built 1967 Load: 32.4 t ADT: 16,500
WARM SPRINGS RD
FairOver: SONOMA CREEK
9.85 MI N OF SR 116, Sonoma, CA
Built 1960 Load: 32.4 t ADT: 3,000
OCCIDENTAL RD
FairOver: LAGUNA DE SANTA ROSA
1 MI EAST OF SR 116, Sonoma, CA
Built 1990 Load: 32.4 t ADT: 22,900
RIVER ROAD
FairOver: BIG SULPHUR CREEK
NE OF CLOVERDALE, Sonoma, CA
Built 1988 Load: 32.4 t ADT: 500
MONTGOMERY RD
FairOver: JONIVE CREEK
0.1 MI N BODEGA HWY, Sonoma, CA
Built 1963 Load: 32.4 t ADT: 270
LUDWIG AVE
FairOver: ROSELAND CR FLD CNTL CHN
1.6 MI E JCT WTH LLANO RD, Sonoma, CA
Built 1980 Load: 32.4 t ADT: 1,700
COUNTRY CLUB DR
FairOver: COPELAND CREEK
0.4 MI S RNPK EXPRSSWY, Sonoma, CA
Built 1973 Load: 32.4 t ADT: 7,700
LABATH AVE
FairOver: HINEBAUGH CREEK
0.2 MI N ROHNERT PK EXPWY, Sonoma, CA
Built 1979 Load: 32.4 t ADT: 800
STATE FARM DRIVE
FairOver: HINEBAUGH CREEK
0.2 MI N ROHNERT PARK EXP, Sonoma, CA
Built 1979 Load: 32.4 t ADT: 9,000
COUNTRY CLUB DRIVE
FairOver: HINEBAUGH CREEK
0.1 MI N ROHNERT PK EXPWY, Sonoma, CA
Built 1973 Load: 32.4 t ADT: 7,000
COUNTRY CLUB DRIVE
FairOver: HINEBAUGH CREEK
0.1 MI N ROHNERT PK EXPWY, Sonoma, CA
Built 1973 Load: 32.4 t ADT: 7,000
FAIRWAY DRIVE
FairOver: COLEMAN CREEK
0.2 MI S HOLLY, Sonoma, CA
Built 1977 Load: 32.4 t ADT: 1,000
HILLVIEW WAY
FairOver: COLEMAN CREEK
0.1 MI S HOLLY, Sonoma, CA
Built 1979 Load: 32.4 t ADT: 1,000
ROHNERT PARK EXPWY
FairOver: BELLEVUE WILFRED CREEK
0.1 MI E STONY PT RD, Sonoma, CA
Built 1990 Load: 32.4 t ADT: 8,200
ROHNERT PARK EXPWY
FairOver: HINEBAUGH CREEK
1/2 MI E STONY POINT RD, Sonoma, CA
Built 1990 Load: 32.4 t ADT: 8,200
THOMAS LK HARIS DR
FairOver: STONEFIELD ARCH
0.1 MI N FNTAINGROVE PKWY, Sonoma, CA
Built 1989 Load: 32.4 t ADT: 500
STONY POINT RD
FairOver: GOSSAGE CREEK
0.1 MI N/O SH 116, Sonoma, CA
Built 1994 Load: 32.4 t ADT: 10,600
CONDE LANE
FairOver: WINDSOR CREEK
320 FT EAST OF BELL AVE, Sonoma, CA
Built 1995 Load: 32.4 t ADT: 5,400
Old Redwood Hwy
FairOver: WINDSOR CREEK
100 YARDS WEST OF RTE 101, Sonoma, CA
Built 1995 Load: 32.4 t ADT: 2,000
PAYRAN ST
FairOver: PETALUMA RIVER
0.3 MI E/O PETALUMA BL, Sonoma, CA
Built 1997 Load: 32.4 t ADT: 7,575
CLOVERDALE BLVD
FairOver: CLOVERDALE CREEK
0.8 MI. N OF 1ST ST, Sonoma, CA
Built 2000 Load: 32.4 t ADT: 5,700
WALKER AVENUE
FairOver: COLGAN CK FLD CNTRL CHAN
0.7 MI S TODD RD, Sonoma, CA
Built 1997 Load: 32.4 t ADT: 150
LAKEVILLE STREET
FairOver: PETALUMA RIVER
ON LAKEVILLE STREET, Sonoma, CA
Built 1998 Load: 32.4 t ADT: 5,520
GEYSERS ROAD
FairOver: HILLSIDE
.75 M E OF RIVER RD, Sonoma, CA
Built 1998 Load: 32.4 t ADT: 150
GREAT HERON DRIVE
FairOver: SKY HAWK CREEK
INTRSX W/ MTN HAWK WAY, Sonoma, CA
Built 1995 Load: 32.4 t ADT: 900
RIVER ROAD
FairOver: HILLSIDE
1.6 MI E/O SR 116, Sonoma, CA
Built 2007 Load: 32.4 t ADT: 10,250
GAMAY STREET
FairOver: STEEL CREEK
NORTH OF JENNINGS AVE, Sonoma, CA
Built 1989 Load: 32.4 t ADT: 500
N MCDOWELL BLVD
FairOver: WILLOW BROOK CREEK
N OF WILLOWBROOK CT, Sonoma, CA
Built 1992 Load: 32.4 t ADT: 500
HOLLY LANE
FairOver: WASHINGTON CREEK
W OF MADISON STREET, Sonoma, CA
Built 1997 Load: 32.4 t ADT: 500
VIA COLUMBARD
FairOver: ROGERS CREEK
0.7 MI W/O ARNOLD DRIVE, Sonoma, CA
Built 1987 Load: 32.4 t ADT: 200
PORTER CREEK ROAD
FairOver: PORTER CREEK
7.1 MI NE MARK WEST & 101, Sonoma, CA
Built 2014 Load: 32.4 t ADT: 7,300
SHILOH ROAD
FairOver: PRUITT CREEK
0.1 MI EAST OF CONDE LANE, Sonoma, CA
Built 2012 Load: 32.4 t ADT: 20,000
NATALIE DRIVE
FairOver: WINDSOR CREEK
200 FT S OF JESSICA DRIVE, Sonoma, CA
Built 1988 Load: 32.4 t ADT: 3,000
BELL ROAD
FairOver: EAST WINDSOR CREEK
400 FT NW OFJOSHUA DR, Sonoma, CA
Built 2007 Load: 32.4 t ADT: 3,000
GOLF COURSE ROAD
FairOver: POOL CREEK
300 FT N OF 19TH HOLE DR, Sonoma, CA
Built 1997 Load: 32.4 t ADT: 3,000
CONDE LANE
FairOver: POOL CREEK
0.2 MI N OF SHILOH RD, Sonoma, CA
Built 2008 Load: 32.4 t ADT: 3,000
SR 108 (MCHENRY)
FairOver: M.I.D. CANAL LATERAL 4
10-STA-108-23.57-MOD, Stanislaus, CA
Built 1960 Load: 32.4 t ADT: 29,300
STATE ROUTE 132
FairOver: SAN JOAQUIN RIVER
10-STA-132-R2.43, Stanislaus, CA
Built 1971 Load: 32.4 t ADT: 13,950
STATE ROUTE 132
FairOver: TUOLUMNE RIVER
10-STA-132-R43.77, Stanislaus, CA
Built 1987 Load: 32.4 t ADT: 1,550
KEYES RD
FairOver: UP RR
10-STA-000-0.00, Stanislaus, CA
Built 1985 Load: 32.4 t ADT: 3,500
CLARIBEL ROAD
FairOver: CASHMAN CREEK
3.55 MI E OF ELLENWOOD, Stanislaus, CA
Built 1992 Load: 32.4 t ADT: 351
Showing 14,451-14,500 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.