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
STATE ROUTE 58 WB
UnknownOver: OSWELL STREET
06-KER-058-R57.41, Kern, CA
Built 1974 ADT: 19,732
STATE ROUTE 58 EB
UnknownOver: OSWELL STREET
06-KER-058-R57.41, Kern, CA
Built 1974 ADT: 19,732
STERLING ROAD
UnknownOver: SR 58
06-KER-058-R57.93, Kern, CA
Built 1974 ADT: 58,000
FAIRFAX ROAD
UnknownOver: SR 58
06-KER-058-R58.44, Kern, CA
Built 1974 ADT: 65,000
MUROC RD
UnknownOver: STATE ROUTE 58
09-KER-058-R129.67, Kern, CA
Built 1974 ADT: 34,000
CLAY MINE ROAD
UnknownOver: STATE ROUTE 58
09-KER-058-R132.04, Kern, CA
Built 1974 ADT: 34,000
STATE ROUTE 155
UnknownOver: STATE ROUTE 178
06-KER-155-R70.98, Kern, CA
Built 1974 ADT: 4,200
STATE ROUTE 58
UnknownOver: COTTONWOOD ROAD
06-KER-058-R55.40, Kern, CA
Built 1974 ADT: 12,223
STATE ROUTE 58 EB
UnknownOver: COTTONWOOD ROAD
06-KER-058-R55.40, Kern, CA
Built 1974 ADT: 12,223
HUGHES LANE
UnknownOver: SR 58
06-KER-058-R52.89-BKD, Kern, CA
Built 1976 ADT: 45,000
SOUTH H ST
UnknownOver: SR 58
06-KER-058-R53.39-BKD, Kern, CA
Built 1976 ADT: 45,000
STATE ROUTE 58 WB
UnknownOver: SOUTH P STREET
06-KER-058-R53.91-BKD, Kern, CA
Built 1976 ADT: 4,500
STATE ROUTE 58 EB
UnknownOver: SOUTH P STREET
06-KER-058-R53.91-BKD, Kern, CA
Built 1976 ADT: 4,500
SR 204 (UNION AVE)
UnknownOver: STATE ROUTE 58
06-KER-204-R0.03-BKD, Kern, CA
Built 1976 ADT: 67,000
STATE ROUTE 58
UnknownOver: MADISON STREET
06-KER-058-R54.91, Kern, CA
Built 1976 ADT: 4,167
STATE ROUTE 58
UnknownOver: MADISON STREET
06-KER-058-R54.91, Kern, CA
Built 1976 ADT: 4,167
W58-S99 CONNECTOR
UnknownOver: SR 99 & WIBLE ROAD
06-KER-058-T52.33, Kern, CA
Built 1976 ADT: 145,000
REAL RD-E58 ON RMP
UnknownOver: SR 99 & WIBLE ROAD
06-KER-058-T52.33, Kern, CA
Built 1976 ADT: 19,000
S99-E58 CONNECTOR
UnknownOver: SR 58, SR 99 & WIBLE RD
06-KER-099-23.49-BKD, Kern, CA
Built 1976 ADT: 40,500
BRUNDAGE LN & OAK
UnknownOver: W58-N99 CONNECTOR RAMP
06-KER-058-R52.38-BKD, Kern, CA
Built 1976 ADT: 16,000
STATE ROUTE 178
UnknownOver: U.S. HIGHWAY 395
09-KER-178-R93.23, Kern, CA
Built 1974 ADT: 6,400
STATE ROUTE 14 NB
UnknownOver: U.S. HIGHWAY 395 SB
09-KER-014-64.54, Kern, CA
Built 1993 ADT: 5,650
BUSINESS 58 EAST
UnknownOver: STATE ROUTE 58
09-KER-058-M116.37, Kern, CA
Built 2003 ADT: 31,000
BUSINESS ROUTE 58
UnknownOver: STATE ROUTE 58
09-KER-058-M108.90, Kern, CA
Built 2003 ADT: 39,500
STATE ROUTE 14 SB
UnknownOver: STATE ROUTE 58
09-KER-014-19.00, Kern, CA
Built 2003 ADT: 19,600
STATE ROUTE 14 NB
UnknownOver: STATE ROUTE 58
09-KER-014-19.00, Kern, CA
Built 2003 ADT: 19,600
CALIFORNIA CITY BL
UnknownOver: STATE ROUTE 14
09-KER-014-21.16, Kern, CA
Built 2008 ADT: 9,800
FAIRFAX ROAD
UnknownOver: STATE ROUTE 178
06-KER-178-R6.77-BKD, Kern, CA
Built 2009 ADT: 26,500
SR 204 (GOLDEN ST)
UnknownOver: CHESTER AVE
06-KER-204-4.88-BKD, Kern, CA
Built 2011 ADT: 24,103
HOSKING AVENUE
UnknownOver: STATE ROUTE 99
06-KER-099-18.52-BKD, Kern, CA
Built 2015 ADT: 66,500
MORNING DRIVE
UnknownOver: STATE ROUTE 178
06-KER-178-R7.00, Kern, CA
Built 2015 ADT: 26,500
SUNNY LANE POC
UnknownOver: STATE ROUTE 178
06-KER-178-R4.35-BKD, Kern, CA
Built 2016 ADT: 60,000
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 99, NB RAMP
06-KER-099-49.62-MCF, Kern, CA
Built 2017 ADT: 60,500
99-58E CONNECTOR
UnknownOver: 58E OFFRAMP TO H ST
06-KER-099-23.48-BKD, Kern, CA
Built 2018 ADT: 5,400
STATE ROUTE 46
UnknownOver: STATE ROUTE 99
06-KER-046-R57.76, Kern, CA
Built 2019 ADT: 67,000
BELLE TERRACE
UnknownOver: STATE ROUTE 99
06-KER-099-23.10-BKD, Kern, CA
Built 2020 ADT: 153,000
N99 -E58 CONNECTOR
UnknownOver: WIBLE ROAD
06-KER-099-23.36-BKD, Kern, CA
Built 2019 ADT: 17,424
MC COMBS AVE
UnknownOver: SR 43, BNSF, FUTURE CHSR
06-KER-043-26.41, Kern, CA
Built 2023 ADT: 4,350
MERCED AVE
UnknownOver: SR 43, BNSF,FUTURE CHSRA
06-KER-043-19.54, Kern, CA
Built 2023 ADT: 12,200
RENFRO ROAD
UnknownOver: STATE ROUTE 58
06-KER-058-R44.36-BKD, Kern, CA
Built 2015 ADT: 22,000
ALLEN ROAD
UnknownOver: STATE ROUTE 58
06-KER-058-R45.37-BKD, Kern, CA
Built 2013 ADT: 1,000
JEWETTA AVE
UnknownOver: STATE ROUTE 58
06-KER-058-R46.37-BKD, Kern, CA
Built 2011 ADT: 20,000
CALLOWAY DRIVE
UnknownOver: STATE ROUTE 58
06-KER-058-R47.05-BKD, Kern, CA
Built 2011 ADT: 2,000
STATE ROUTE 58
UnknownOver: COFFEE ROAD
NORTH OF KERN RIVER, Kern, CA
Built 2010 ADT: 51,375
UP RR
UnknownOver: AIRPORT DRIVE
E OF SR 204, Kern, CA
Built 1952 ADT: 35,000
PANORAMA DRIVE
UnknownOver: MANOR STREET
0.15 MI FROM COLUMBUS AV, Kern, CA
Built 1957 ADT: 16,000
ALFRED HARRELL HWY
UnknownOver: ALFRED HARRELL HWY
0.4 MI E CHINA GRADE LOOP, Kern, CA
Built 1957 ADT: 3,383
UP RR
UnknownOver: HIGH STREET
0.3 MI SOUTH OF MAIN ST., Kern, CA
Built 1935 ADT: 6,860
KNUDSEN DRIVE
UnknownOver: UP RR & GOLDEN STATE HWY
0.25 MI N OF NORRIS RD W, Kern, CA
Built 1948 ADT: 1,100
DWR SERVICE ROAD
UnknownOver: OLD RIVER ROAD
0.7 MI NORTH OF RTE 166, Kern, CA
Built 1968 ADT: 2,301
Showing 1,251-1,300 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 |