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
PEDESTRIAN WALKWAY
UnknownOver: GAFFEY
.04 MI S OF W OF OFARRELL, Los Angeles, CA
Built 1970 ADT: 44,250
UPRR AND MTA
UnknownOver: WHITTIER BLVD
0.3MI W/O PARAMOUNT BLVD, Los Angeles, CA
Built 1926 ADT: 44,100
UPRR
UnknownOver: WHITTIER BLVD
0.1MI W/O ESPERANZA AVE, Los Angeles, CA
Built 1953 ADT: 44,100
PASEO VALENCIA POC
UnknownOver: CARRIZO DR
0.3MI E/O MCBEAN PKWY, Los Angeles, CA
Built 2013 ADT: 4,182
PASEO VALENCIA POC
UnknownOver: ALTA MADERA DR
1.1MI S/O VALENCIA BLVD, Los Angeles, CA
Built 2013 ADT: 7,828
PEDESTRAIN WALKWAY
UnknownOver: MAGIC MOUNTAIN PARKWAY
0.34M E/O MCBEAN PARKWAY, Los Angeles, CA
Built 1995 ADT: 37,000
VIA PRINCESSA ROAD
UnknownOver: RAILROAD AV, SANTA CLARA
0.6 MI E/O ORCH VILL RD, Los Angeles, CA
Built 2001 ADT: 37,000
SIX STREET
UnknownOver: LOS ANGELES RIVER
SIXTH STREET OVER LA RIVE, Los Angeles, CA
Built 2022 ADT: 9,736
UPRR
UnknownOver: BALDWIN AVENUE
_, Los Angeles, CA
Built 2015 ADT: 26,282
UPRR
UnknownOver: PASSONS BLVD
350FT N/O SLAUSON AVE, Los Angeles, CA
Built 2013 ADT: 8,451
Bessie Ave. POC
UnknownOver: Baldwin Avenue
0.3 MI NORTH OF VALLEY BL, Los Angeles, CA
Built 2015 ADT: 26,282
METRO GOLD LINE
UnknownOver: SANTA ANITA AVE
0.29 MI N/O HUNTINGTON DR, Los Angeles, CA
Built 2014 ADT: 15,157
BNSF
UnknownOver: Valley View Ave
0.3M S/O ROSECRANS AVE., Los Angeles, CA
Built 2015 ADT: 44,294
EXPOSITION LRT
UnknownOver: CLOVERFIELD BLVD
80FT S/O OLYMPIC BLVD, Los Angeles, CA
Built 2013 ADT: 13,520
EXPOSITION LRT
UnknownOver: OLYMPIC BLVD
581 FT W/O CLOVERFIELD BL, Los Angeles, CA
Built 2013 ADT: 13,520
EXPOSITION LRT
UnknownOver: S. CENTINELA AVE
330 FT S/O W. OLYMIPIC BL, Los Angeles, CA
Built 2014 ADT: 13,520
Paseo Valencia
UnknownOver: Del Monte Drive
0.2 MI E/O MCBEAN PKWY, Los Angeles, CA
Built 2014 ADT: 4,000
HALE MEDICAL POC
UnknownOver: HUNTINGTON DR
0.7 MI W/O SANTA ANITA AV, Los Angeles, CA
Built 2014 ADT: 13,520
PASEO VALENCIA
UnknownOver: JOHN RUSSELL
634 FT W/O CORTINA DR, Los Angeles, CA
Built 2016 ADT: 2,200
LT RAIL EXPO LINE
UnknownOver: SR 187/VENICE BLVD
07-LA-187-7.76-CLC, Los Angeles, CA
Built 2014 ADT: 42,250
LT RAIL EXPO LINE
UnknownOver: SR 187/VENICE BLVD
07-LA-187-7.76-CLC, Los Angeles, CA
Built 2014 ADT: 42,250
METRO GOLD LINE S
UnknownOver: FOOTHILL BLVD
0.37 MI W/O AZUSA AVE, Los Angeles, CA
Built 2014 ADT: 15,600
METRO GOLD LINE N
UnknownOver: FOOTHILL BLVD
0.37 MI W/O AZUSA AVE, Los Angeles, CA
Built 2014 ADT: 15,600
Edison POC
UnknownOver: Walnut Grove Ave
2244 WALNUT GROVE, Los Angeles, CA
Built 2014 ADT: 17,934
UPRR (ACTA)
UnknownOver: NOGALES STREET
430 FEET N/O OF GALE AVE, Los Angeles, CA
Built 2017 ADT: 40,898
LIGHT RAIL TRANSIT
UnknownOver: AVIATION BLVD
350 FT S/O IMPERIAL HWY, Los Angeles, CA
Built 2020 ADT: 21,649
LIGHT RAIL TRANSIT
UnknownOver: IMPERIAL HIGHWAY
50 FT W/O AVIATION BLVD, Los Angeles, CA
Built 2020 ADT: 25,616
LA METRO
UnknownOver: LA CIENEGA BLVD
100 FT N/O W FLORENCE AVE, Los Angeles, CA
Built 2017 ADT: 15,000
VALLEY BLVD
UnknownOver: PUENTE AVE
0.5 MI EO VINELAND AVE, Los Angeles, CA
Built 2018 ADT: 21,306
METRO LINE
UnknownOver: PUENTE AVE
0.5 MI EO VINELAND AVE, Los Angeles, CA
Built 2018 ADT: 23,730
PEDESTRIAN
UnknownOver: MISSION ROAD
0.24 MI S. OF 4TH ST, Los Angeles, CA
Built 2022 ADT: 4,500
PEDESTRIAN
UnknownOver: MISSION ROAD
0.24 MI S. OF 4TH ST, Los Angeles, CA
Built 2022 ADT: 4,500
UP RR
UnknownOver: SR 99 NB
06-MAD-099-23.09, Madera, CA
Built 1929 ADT: 37,500
BNSF RY & AMTRAK
UnknownOver: SR 145
06-MAD-145-12.13, Madera, CA
Built 1949 ADT: 8,900
N99-W152 CONNECTOR
UnknownOver: SR 99 SB
06-MAD-099-22.73, Madera, CA
Built 1957 ADT: 57,000
S GATEWAY DR
UnknownOver: SR 99
06-MAD-099-9.74, Madera, CA
Built 1958 ADT: 61,000
SR 145 (MADERA AV)
UnknownOver: STATE ROUTE 99
06-MAD-145-9.07-MAD, Madera, CA
Built 1958 ADT: 65,000
W SIXTH ST
UnknownOver: SR 99
06-MAD-099-10.76-MAD, Madera, CA
Built 1958 ADT: 65,000
WEST YOSEMITE AVE
UnknownOver: SR 99
06-MAD-099-10.84-MAD, Madera, CA
Built 1958 ADT: 65,000
W FOURTH ST
UnknownOver: SR 99
06-MAD-099-11.01-MAD, Madera, CA
Built 1958 ADT: 68,000
UP RR SPUR
UnknownOver: SR 99
06-MAD-099-11.09-MAD, Madera, CA
Built 1958 ADT: 68,000
CLEVELAND AVE
UnknownOver: SR 99
06-MAD-099-12.13-MAD, Madera, CA
Built 1958 ADT: 68,000
AVENUE 24
UnknownOver: SR 99
06-MAD-099-23.77, Madera, CA
Built 1957 ADT: 38,500
SR 233 (AVENUE 26)
UnknownOver: STATE ROUTE 99
06-MAD-233-3.87, Madera, CA
Built 1957 ADT: 38,500
CO RD 15 \ MINTURN
UnknownOver: SR 99
06-MAD-099-28.17, Madera, CA
Built 1957 ADT: 37,500
N GATEWAY DR
UnknownOver: SR 99
06-MAD-099-12.75-MAD, Madera, CA
Built 1958 ADT: 68,000
S233-E152N233-W152
UnknownOver: STATE ROUTE 152
06-MAD-233-0.01, Madera, CA
Built 1968 ADT: 13,000
AVENUE 8
UnknownOver: SR 99 & UP RR
06-MAD-099-2.23, Madera, CA
Built 1964 ADT: 65,000
AVENUE 11
UnknownOver: SR 99 & UP RR
06-MAD-099-6.15, Madera, CA
Built 1964 ADT: 65,000
AVENUE 13
UnknownOver: SR 99 & UP RR
06-MAD-099-8.72, Madera, CA
Built 1967 ADT: 67,000
Showing 3,151-3,200 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 |