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
SEMINOLE RD
UnknownOver: INTERSTATE 8
11-IMP-008-R91.73, Imperial, CA
Built 1973 ADT: 20,400
WINTERHAVEN ROAD
UnknownOver: INTERSTATE 8
11-IMP-008-R94.98, Imperial, CA
Built 1973 ADT: 16,700
WINTERHAVEN DRIVE
UnknownOver: INTERSTATE 8
11-IMP-008-R96.55, Imperial, CA
Built 1973 ADT: 16,700
DUNAWAY ROAD
UnknownOver: INTERSTATE 8
11-IMP-008-R23.48, Imperial, CA
Built 1968 ADT: 12,200
TOWLAND ROAD
UnknownOver: INTERSTATE 8
11-IMP-008-R48.78, Imperial, CA
Built 1971 ADT: 11,600
GRAYS WELLS ROAD
UnknownOver: INTERSTATE 8
11-IMP-008-80.80L, Imperial, CA
Built 1989 ADT: 14,500
SR 7 AUTO TRAFFIC
UnknownOver: SR 7 TRUCK TRAFFIC
11-IMP-007-S0.43, Imperial, CA
Built 1996 ADT: 7,800
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 8
11-IMP-008-R36.45-ECN, Imperial, CA
Built 1996 ADT: 20,400
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 8
11-IMP-008-R37.45-ECN, Imperial, CA
Built 1996 ADT: 32,000
HUNT ROAD
UnknownOver: STATE ROUTE 7
11-IMP-007-6.26, Imperial, CA
Built 2005 ADT: 7,200
STATE ROUTE 78 WB
UnknownOver: STATE ROUTE 111
11-IMP-078-R12.87, Imperial, CA
Built 2011 ADT: 1,200
STATE ROUTE 78 EB
UnknownOver: STATE ROUTE 111
11-IMP-078-R12.87, Imperial, CA
Built 2011 ADT: 1,200
W78 - N111
UnknownOver: STATE ROUTE 111
11-IMP-078-R12.87, Imperial, CA
Built 2011 ADT: 1,200
STATE ROUTE 78 WB
UnknownOver: BRAWLEY BEEF WAY AVENUE
11-IMP-078-R13.34, Imperial, CA
Built 2011 ADT: 500
STATE ROUTE 78 EB
UnknownOver: BRAWEY BEEF WAY AVENUE
11-IMP-078-R13.34, Imperial, CA
Built 2011 ADT: 500
STATE ROUTE 78 WB
UnknownOver: KALIN RD, WESTSIDE MAIN
11-IMP-078-R9.83, Imperial, CA
Built 2012 ADT: 700
STATE ROUTE 78 EB
UnknownOver: KALIN RD, WESTSIDE MAIN
11-IMP-078-R9.83, Imperial, CA
Built 2012 ADT: 700
DOGWOOD ROAD
UnknownOver: INTERSTATE 8
11-IMP-008-R39.00-ECN, Imperial, CA
Built 2017 ADT: 34,500
IMPERIAL AVENUE
UnknownOver: INTERSTATE 8
11-IMP-008-R36.97-ECN, Imperial, CA
Built 2022 ADT: 194,000
UP RR & AMTRAK
UnknownOver: PICACHO ROAD
150FT NE/O QUECHAN RD, Imperial, CA
Built 1955 ADT: 4,400
BNSF RY & AMTRAK
UnknownOver: ST RTE 204 (UNION AVE)
06-KER-204-3.34-BKD, Kern, CA
Built 1934 ADT: 43,000
BNSF RY & AMTRAK
UnknownOver: STATE ROUTE 46
06-KER-046-51.01-WAS, Kern, CA
Built 1930 ADT: 9,200
STATE ROUTE 99 SB
UnknownOver: NORRIS RD, UP RR,OILDALE
06-KER-099-R28.56, Kern, CA
Built 1964 ADT: 14,000
STATE ROUTE 99 NB
UnknownOver: NORRIS RD, UP RR,OILDALE
06-KER-099-R28.56, Kern, CA
Built 1964 ADT: 14,000
SJVR & BNSF RY
UnknownOver: STATE ROUTE 99
06-KER-099-27.32, Kern, CA
Built 1963 ADT: 110,000
MERCED AVE
UnknownOver: STATE ROUTE 99
06-KER-099-R39.12, Kern, CA
Built 1968 ADT: 110,000
OLIVE DRIVE
UnknownOver: STATE ROUTE 99 & OFFRAMP
06-KER-099-27.87, Kern, CA
Built 1964 ADT: 110,000
FORT TEJON OC
UnknownOver: INTERSTATE 5
06-KER-005-5.02, Kern, CA
Built 1960 ADT: 69,000
S65-S99 CONNECTOR
UnknownOver: STATE ROUTE 99
06-KER-065-R0.01, Kern, CA
Built 1964 ADT: 61,000
WOOLLOMES AVE
UnknownOver: STATE ROUTE 99
06-KER-099-54.48-DLN, Kern, CA
Built 1955 ADT: 53,000
ELEVENTH AVE
UnknownOver: STATE ROUTE 99
06-KER-099-56.10-DLN, Kern, CA
Built 1955 ADT: 57,000
SR 155 (GARCES HWY
UnknownOver: SR 99
06-KER-155-0.41-DLN, Kern, CA
Built 1955 ADT: 53,000
CECIL AVE
UnknownOver: STATE ROUTE 99
06-KER-099-56.54-DLN, Kern, CA
Built 1955 ADT: 53,000
COUNTY LINE ROAD
UnknownOver: STATE ROUTE 99
06-KER-099-57.58-DLN, Kern, CA
Built 1955 ADT: 55,000
WHEELER RIDGE RD S
UnknownOver: INTERSTATE 5
06-KER-005-13.54, Kern, CA
Built 2010 ADT: 48,750
WHEELER RIDGE RD N
UnknownOver: INTERSTATE 5
06-KER-005-13.52, Kern, CA
Built 1962 ADT: 48,750
E166-N99, N99-W166
UnknownOver: ST RTE 99 (@PM 2.73)
06-KER-166-24.57, Kern, CA
Built 1960 ADT: 44,000
DAVID ROAD
UnknownOver: STATE ROUTE 99
06-KER-099-5.34, Kern, CA
Built 1960 ADT: 45,250
SANDRINI RD
UnknownOver: STATE ROUTE 99
06-KER-099-7.29, Kern, CA
Built 1967 ADT: 45,250
SHERWOOD AVE
UnknownOver: STATE ROUTE 99
06-KER-099-49.30-MCF, Kern, CA
Built 1963 ADT: 57,000
PERKINS AVE
UnknownOver: STATE ROUTE 99
06-KER-099-49.95-MCF, Kern, CA
Built 1963 ADT: 57,000
STATE ROUTE 58
UnknownOver: GENERAL BEALE ROAD
06-KER-058-69.75, Kern, CA
Built 1960 ADT: 2,000
STATE ROUTE 58
UnknownOver: GENERAL BEALE ROAD
06-KER-058-69.75, Kern, CA
Built 1960 ADT: 2,000
ELMO HWY
UnknownOver: STATE ROUTE 99
06-KER-099-50.41, Kern, CA
Built 1963 ADT: 49,000
POND ROAD
UnknownOver: STATE ROUTE 99
06-KER-099-52.45, Kern, CA
Built 1960 ADT: 63,000
LERDO HIGHWAY
UnknownOver: STATE ROUTE 99
06-KER-099-36.52, Kern, CA
Built 1961 ADT: 110,000
WHISLER ROAD
UnknownOver: STATE ROUTE 99
06-KER-099-R47.37, Kern, CA
Built 1970 ADT: 51,000
UNION AVE-S99 ONRP
UnknownOver: STATE ROUTE 99
06-KER-099-10.93, Kern, CA
Built 1962 ADT: 47,000
INTERSTATE 5 SB
UnknownOver: SR 99 TRUCK RAMP SB
06-KER-005-R15.51L, Kern, CA
Built 1972 ADT: 5,600
INTERSTATE 5 NB
UnknownOver: STATE ROUTE 99
06-KER-005-R15.82R, Kern, CA
Built 1967 ADT: 44,000
Showing 1,101-1,150 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 |