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
SAN VICENTE ROAD
GoodOver: SAN VICENTE CREEK TRIB
130 FT E/O VICENTE MEADOW, San Diego, CA
Built 2016 Load: 32.4 t ADT: 7,000
SAN VICENTE ROAD
GoodOver: SAN VICENTE CREEK TRIB
70 FT E OF CHUCK WAGON RD, San Diego, CA
Built 2016 Load: 32.4 t ADT: 7,000
BENT AVENUE
GoodOver: SAN MARCOS CREEK
0.20 MI S/O SAN MARCOS BL, San Diego, CA
Built 2023 Load: 32.4 t ADT: 7,500
TWIN OAKS VLY ROAD
GoodOver: E. BR. SAN MARCOS CREEK
AT WB78 RAMPS, San Diego, CA
Built 1992 Load: 32.4 t ADT: 25,900
SAN MARCOS BLVD
GoodOver: N. BR. SAN MARCOS CREEK
150 FT E/O TWIN OAKS VLY, San Diego, CA
Built 1999 Load: 32.4 t ADT: 12,000
WOODSIDE AVENUE
GoodOver: STORM DRAIN LOS COCHES
0.6M. E/O RIVERFORD RD, San Diego, CA
Built 2017 Load: 32.4 t ADT: 17,284
HARMONY GROVE VLG
GoodOver: ESCONDIDO CREEK
85.1FT E. HARMONY GROVE, San Diego, CA
Built 2016 Load: 32.4 t ADT: 1,000
FLOWERWOOD LANE
GoodOver: ADLER CREEK
0.28 MI S/O KNOTTWOOD WY, San Diego, CA
Built 2010 Load: 32.4 t ADT: 500
KNOTTWOOD WAY
GoodOver: ADLER CREEK
0.88 MI W/O GIRD RD, San Diego, CA
Built 2017 Load: 32.4 t ADT: 500
VISTA SORRENTO PKW
GoodOver: LOS PENASQUITOS CREEK
0.2M N/O SORRENTO VALLEY, San Diego, CA
Built 2001 Load: 32.4 t ADT: 15,431
S/B MISSION BAY DR
GoodOver: SAN DIEGO RIVER
300 FT N/O ROUTE 8, San Diego, CA
Built 2023 Load: 32.4 t ADT: 55,000
N/B MISSION BAY DR
GoodOver: SAN DIEGO RIVER
300 FT N/O ROUTE 8, San Diego, CA
Built 2023 Load: 32.4 t ADT: 55,000
INTERSTATE 80
GoodOver: GATE, SAN FRANCISCO BAY
04-SF-080-R7.91-SF, San Francisco, CA
Built 2013 Load: 32.4 t ADT: 265,000
80 EB ON RAMP
GoodOver: SOUTH GATE RD
04-SF-080-R7.98-SF, San Francisco, CA
Built 2016 Load: 32.4 t ADT: 3,000
BNSF RY
GoodOver: CALTRAIN & UP RR
04-SF-280-R6.66-SF, San Francisco, CA
Built 1968 Load: 32.4 t ADT: 6,000
US HIGHWAY 101 NB
GoodOver: TENNESSEE HOLLOW
04-SF-101-R8.34-SF, San Francisco, CA
Built 2015 Load: 32.4 t ADT: 39,500
US HIGHWAY 101 SB
GoodOver: GIRARD ROAD
04-SF-101-R8.30-SF, San Francisco, CA
Built 2015 Load: 32.4 t ADT: 18,000
US HIGHWAY 101 NB
GoodOver: GIRARD ROAD
04-SF-101-R8.29-SF, San Francisco, CA
Built 2015 Load: 32.4 t ADT: 18,000
MARINA ONRAMP 101N
GoodOver: TENNESSEE HOLLOW
04-SF-101-R8.33-SF, San Francisco, CA
Built 2015 Load: 32.4 t ADT: 20,000
80 WB OFF RAMP
GoodOver: MACALLA RD
04-SF-080-R7.98-SF, San Francisco, CA
Built 2016 Load: 32.4 t ADT: 3,000
80 WB ON RAMP
GoodOver: MACALLA RD
04-SF-080-R7.98-SF, San Francisco, CA
Built 2016 Load: 32.4 t ADT: 3,000
STATE ROUTE 101 SB
GoodOver: BATTERY SUBSTATION
04-SF-101-R9.16-SF, San Francisco, CA
Built 2012 Load: 32.4 t ADT: 79,000
YBI EB 80 OFF RAMP
GoodOver: SOUTHGATE MACALLA ROAD
04-SF-080-7.90-SF, San Francisco, CA
Built 2023 Load: 32.4 t ADT: 4,400
OAKDALE AVE
GoodOver: CALTRAIN & UP RR
0.3 MILES FROM 3RD, San Francisco, CA
Built 1998 Load: 32.4 t ADT: 12,000
TREASURE ISLAND RD
GoodOver: SIDEHILL
BETWEEN SHVS #7A AND #7B, San Francisco, CA
Built 1997 Load: 32.4 t ADT: 3,000
PAUL AVE
GoodOver: CALTRAIN
0.1MI W/O 3RD ST, San Francisco, CA
Built 1930 Load: 32.4 t ADT: 20,000
23RD STREET
GoodOver: CALTRAIN
JEO PENNSYLVANIA AVE, San Francisco, CA
Built 1930 Load: 32.4 t ADT: 8,000
22ND STREET
GoodOver: CALTRAIN
JEO PENNSYLVANIA AVE, San Francisco, CA
Built 2016 Load: 32.4 t ADT: 8,000
S Tracy Blvd
GoodOver: Delta-Mendota Canal
.9 MI W OF W LINNE RD, San Joaquin, CA
Built 1948 Load: 32.4 t ADT: 1,680
STATE ROUTE 99
GoodOver: BEAR CREEK
10-SJ-099-25.64, San Joaquin, CA
Built 1963 Load: 32.4 t ADT: 64,000
STATE ROUTE 99
GoodOver: DUCK CREEK
10-SJ-099-16.47, San Joaquin, CA
Built 1956 Load: 32.4 t ADT: 73,000
STATE ROUTE 4
GoodOver: DUCK CREEK
10-SJ-004-36.80, San Joaquin, CA
Built 1988 Load: 32.4 t ADT: 4,800
INTERSTATE 5 NB
GoodOver: W BENJAMIN HOLT DR
10-SJ-005-31.45-STKN, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 111,000
INTERSTATE 5
GoodOver: FIVE MILE SLOUGH
10-SJ-005-32.10-STKN, San Joaquin, CA
Built 1970 Load: 32.4 t ADT: 111,000
STATE ROUTE 99
GoodOver: DUCK CREEK SOUTH BRANCH
10-SJ-099-16.46-STKN, San Joaquin, CA
Built 2016 Load: 32.4 t ADT: 5,000
SR 99 NB OFF RAMP
GoodOver: DUCK CREEK
10-SJ-099-16.48-STKN, San Joaquin, CA
Built 2016 Load: 32.4 t ADT: 5,000
STATE ROUTE 26
GoodOver: SANDSTONE CREEK
10-SJ-026-18.78, San Joaquin, CA
Built 2014 Load: 32.4 t ADT: 5,200
STATE ROUTE 132
GoodOver: LONE TREE CREEK
10-SJ-132-2.70, San Joaquin, CA
Built 1957 Load: 32.4 t ADT: 15,500
WILSON WAY
GoodOver: STOCKTON DIVERTING CANAL
0.1 MI N ALPINE AVE, San Joaquin, CA
Built 1971 Load: 32.4 t ADT: 13,193
AIRPORT WAY
GoodOver: NORTH LITTLE JOHNS CREEK
0.15 MI N INDUSTRIAL WAY, San Joaquin, CA
Built 1968 Load: 32.4 t ADT: 9,277
PARADISE ROAD
GoodOver: PARADISE CUT
0.5 MI N OF DELTA AVE, San Joaquin, CA
Built 1988 Load: 32.4 t ADT: 288
ESCALON-BELLOTA RD
GoodOver: CHANNEL C
0.8 MI S OF S.H. 26, San Joaquin, CA
Built 1965 Load: 32.4 t ADT: 2,430
CORRAL HOLLOW RD
GoodOver: CORRAL HOLLOW CREEK
2.6 MI SW OF I-580, San Joaquin, CA
Built 1959 Load: 32.4 t ADT: 1,006
LIBERTY RD
GoodOver: SOUTH FORK COYOTE CREEK
0.2 MI E OF JACK TONE RD, San Joaquin, CA
Built 1964 Load: 32.4 t ADT: 2,563
ELLIOTT RD
GoodOver: DRY CREEK
SJ/SAC COUNTY LINE, San Joaquin, CA
Built 1990 Load: 32.4 t ADT: 1,120
JOHNSON ROAD
GoodOver: BEAR CREEK
.1 MI S OF SR 12, San Joaquin, CA
Built 1982 Load: 32.4 t ADT: 68
TULLY ROAD
GoodOver: MOSHER SLOUGH
0.1 MI S FRAZIER RD, San Joaquin, CA
Built 1989 Load: 32.4 t ADT: 268
WILLIAMSON RD
GoodOver: WALTHALL SLOUGH
0.4 MI E OF OAK STREET, San Joaquin, CA
Built 1988 Load: 32.4 t ADT: 398
MACARTHUR DRIVE
GoodOver: TOM PAINE SLOUGH
0.1 MI S OF CANAL BLVD, San Joaquin, CA
Built 1987 Load: 32.4 t ADT: 1,036
AUSTIN ROAD
GoodOver: LONE TREE CREEK
0.6 MI N OF FRENCH CAMP, San Joaquin, CA
Built 1969 Load: 32.4 t ADT: 442
Showing 22,701-22,750 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 |