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
BARTD (M3001)
UnknownOver: ADELINE STREET
5TH STREET, Alameda, CA
Built 1968 ADT: 600
BARTD (M3002)
UnknownOver: PERALTA STREET
7TH STREET, Alameda, CA
Built 1968 ADT: 2,000
BARTD
UnknownOver: MARITME ROAD
7TH ST, Alameda, CA
Built 1968 ADT: 800
BARTD
UnknownOver: 29TH AVE
EAST 12TH ST, Alameda, CA
Built 1968 ADT: 1,000
BARTD
UnknownOver: 35TH AVE
300' S OF E 12TH ST, Alameda, CA
Built 1968 ADT: 2,000
BARTD
UnknownOver: 50TH AVE
NORTH SAN LEANDRO ST, Alameda, CA
Built 1968 ADT: 1,000
BARTD
UnknownOver: 66TH AVE
SAN LEANDRO ST, Alameda, CA
Built 1968 ADT: 1,000
BARTD
UnknownOver: 81ST AVE
SAN LEANDRO ST, Alameda, CA
Built 1968 ADT: 1,000
BARTD
UnknownOver: 85TH AVE
SAN LEANDRO ST, Alameda, CA
Built 1968 ADT: 1,000
BARTD
UnknownOver: 98TH AVE
SAN LEANDRO ST, Alameda, CA
Built 1968 ADT: 1,000
BARTD (A3004)
UnknownOver: PARROTT STREET
PARROTT ST W OF SN LEANDR, Alameda, CA
Built 1968 ADT: 1,000
BARTD (A3004)
UnknownOver: WILLIAMS STREET
WILLIAMS ST W OF SAN LEAN, Alameda, CA
Built 1968 ADT: 1,000
BARTD (A3004)
UnknownOver: MARINA BLVD
MARINA BLVD W OF SN LEAND, Alameda, CA
Built 1968 ADT: 2,000
BARTD (A3004)
UnknownOver: HALCYON DR
HALCYON DR 0.2 MI WOFHESP, Alameda, CA
Built 1968 ADT: 1,000
BARTD
UnknownOver: BLOSSOM WAY
BLOSSOM WAY 0.15 MI N GRV, Alameda, CA
Built 1968 ADT: 800
BARTD
UnknownOver: GROVE WAY
GROVE WY .5 MI N SUNSET, Alameda, CA
Built 1968 ADT: 1,000
BARTD (A3006)
UnknownOver: H STREET
N ST 0.3MI N OF DECOTO RD, Alameda, CA
Built 1968 ADT: 10,000
UP RR
UnknownOver: MURRIETA BLVD
0.1 MI N STANLEY RD, Alameda, CA
Built 1987 ADT: 25,700
UP RR, BNSF,AMTRAK
UnknownOver: 7TH STREET
0.1 KM W OF I-880, Alameda, CA
Built 1997 ADT: 5,750
BAY ST
UnknownOver: 7TH STREET
0.1 KM WEST OF I-880, Alameda, CA
Built 1997 ADT: 5,750
UP RR
UnknownOver: PASEO PADRE PARKWAY
0.5 MI W OF DRISCOLL RD, Alameda, CA
Built 2010 ADT: 3,000
UP RR, BNSF RY,ACE
UnknownOver: GREENVILLE RD
.15 MI S OF NATIONAL DR, Alameda, CA
Built 2008 ADT: 3,902
UP RR, BNSF RY,ACE
UnknownOver: GREENVILLE RD
.15 MI S OF NATIONAL DR, Alameda, CA
Built 2008 ADT: 3,902
PEDESTRIAN ACCESS
UnknownOver: PASEO PADRE PARKWAY
0.5 MI W OF DRISCOLL RD, Alameda, CA
Built 2010 ADT: 3,000
BARTD (FUTURE)
UnknownOver: PASEO PADRE PARKWAY
0.5 MI W OF HWY680, Alameda, CA
Built 2010 ADT: 3,000
BARTD TRACKS
UnknownOver: KATO ROAD
0.3 MI W OF WARMSPRING BV, Alameda, CA
Built 2015 ADT: 13,156
UPRR ACCESS ROAD
UnknownOver: KATO ROAD
0.3 MI W OF WARMSPRING BV, Alameda, CA
Built 2015 ADT: 13,156
BARTD TRACKS
UnknownOver: WARREN AVE
0.2 MI W OF WARMSPRING BV, Alameda, CA
Built 2015 ADT: 16,288
UPRR ACCESS ROAD
UnknownOver: WARREN AVE
0.2 MI W OF WARMSPRING BV, Alameda, CA
Built 2015 ADT: 16,288
UPRR TRACKS
UnknownOver: KATO ROAD
0.3 MI W OF WARMSPRING BV, Alameda, CA
Built 2012 ADT: 13,156
UPRR TRACKS
UnknownOver: WARREN AVE
0.2 MI W OF WARMSPRING BV, Alameda, CA
Built 2014 ADT: 16,288
TOLL PLAZA CANOPY
UnknownOver: INTERSTATE 80 WB
04-ALA-080-1.99-OAK, Alameda, CA
Built 1990 ADT: 266,000
AMC RR
UnknownOver: STATE ROUTE 88
10-AMA-088-7.90, Amador, CA
Built 1958 ADT: 9,450
TABLE MOUNTAIN RD
UnknownOver: STATE ROUTE 70
03-BUT-070-19.28, Butte, CA
Built 1963 ADT: 21,300
COTTONWOOD ROAD
UnknownOver: STATE ROUTE 70
03-BUT-070-18.40, Butte, CA
Built 1963 ADT: 20,700
GRAND AVE
UnknownOver: STATE ROUTE 70
03-BUT-070-15.43-OVL, Butte, CA
Built 1963 ADT: 20,100
STATE ROUTE 70
UnknownOver: NELSON ROAD
03-BUT-070-15.72-OVL, Butte, CA
Built 1963 ADT: 3,336
SR 70
UnknownOver: MONTGOMERY STREET
03-BUT-070-14.61-OVL, Butte, CA
Built 1963 ADT: 14,600
STATE ROUTE 70
UnknownOver: STATE ROUTE 162
03-BUT-070-13.90-OVL, Butte, CA
Built 1962 ADT: 8,600
STATE ROUTE 99 SB
UnknownOver: STATE ROUTE 32 EB
03-BUT-099-R32.37-CHC, Butte, CA
Built 1965 ADT: 12,900
STATE ROUTE 99 NB
UnknownOver: STATE ROUTE 32 EB
03-BUT-099-R32.37-CHC, Butte, CA
Built 1965 ADT: 9,400
STATE ROUTE 99 SB
UnknownOver: STATE ROUTE 32 WB
03-BUT-099-R32.44-CHC, Butte, CA
Built 1965 ADT: 12,900
STATE ROUTE 99 NB
UnknownOver: STATE ROUTE 32 WB
03-BUT-099-R32.44-CHC, Butte, CA
Built 1965 ADT: 9,400
STATE ROUTE 99
UnknownOver: VALLOMBROSA, BIG CHICO
03-BUT-099-R32.61-CHC, Butte, CA
Built 1963 ADT: 500
STATE ROUTE 99
UnknownOver: PALMETTO AVE
03-BUT-099-R33.08-CHC, Butte, CA
Built 1963 ADT: 500
STATE ROUTE 99 SB
UnknownOver: EAST FIRST AVE
03-BUT-099-R33.28-CHC, Butte, CA
Built 1966 ADT: 13,400
STATE ROUTE 99 NB
UnknownOver: EAST FIRST AVE
03-BUT-099-R33.28-CHC, Butte, CA
Built 1966 ADT: 13,400
STATE ROUTE 99 SB
UnknownOver: EAST AVENUE
03-BUT-099-R34.93-CHC, Butte, CA
Built 1966 ADT: 14,500
STATE ROUTE 99 NB
UnknownOver: EAST AVENUE
03-BUT-099-R34.93-CHC, Butte, CA
Built 1966 ADT: 14,500
STATE ROUTE 99 SB
UnknownOver: LASSEN AVE
03-BUT-099-R35.31, Butte, CA
Built 1966 ADT: 6,000
Showing 401-450 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 |