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
42ND ST
UnknownOver: INTERSTATE 110
07-LA-110-19.25-LA, Los Angeles, CA
Built 1993 ADT: 30,000
VERNON AVE
UnknownOver: INTERSTATE 110
07-LA-110-19.00-LA, Los Angeles, CA
Built 1993 ADT: 300,000
47th street
UnknownOver: INTERSTATE 110
07-LA-110-18.81-LA, Los Angeles, CA
Built 1996 ADT: 287,000
49TH ST
UnknownOver: INTERSTATE 110
07-LA-110-18.62-LA, Los Angeles, CA
Built 1994 ADT: 244,600
51ST ST
UnknownOver: INTERSTATE 110
07-LA-110-18.49-LA, Los Angeles, CA
Built 1994 ADT: 244,600
54TH ST
UnknownOver: INTERSTATE 110
07-LA-110-18.27-LA, Los Angeles, CA
Built 1993 ADT: 300,000
INTERSTATE 110
UnknownOver: SLAUSON AVE & BNSF RY
07-LA-110-17.98-LA, Los Angeles, CA
Built 1996 ADT: 4,000
INTERSTATE 110
UnknownOver: 59TH PLACE
07-LA-110-17.77-LA, Los Angeles, CA
Built 1956 ADT: 99
INTERSTATE 110
UnknownOver: GAGE AVE
07-LA-110-17.51-LA, Los Angeles, CA
Built 1956 ADT: 20,000
INTERSTATE 110
UnknownOver: 67TH STREET
07-LA-110-17.28-LA, Los Angeles, CA
Built 1956 ADT: 4,000
INTERSTATE 110
UnknownOver: FLORENCE AVE
07-LA-110-16.98-LA, Los Angeles, CA
Built 1956 ADT: 5,000
INTERSTATE 110
UnknownOver: 76TH STREET
07-LA-110-16.72-LA, Los Angeles, CA
Built 1956 ADT: 4,000
INTERSTATE 110
UnknownOver: 79TH STREET
07-LA-110-16.52-LA, Los Angeles, CA
Built 1956 ADT: 4,000
INTERSTATE 110
UnknownOver: 83RD STREET
07-LA-110-16.26-LA, Los Angeles, CA
Built 1956 ADT: 99
INTERSTATE 110
UnknownOver: MANCHESTER AVE
07-LA-110-15.98-LA, Los Angeles, CA
Built 1996 ADT: 20,000
INTERSTATE 110
UnknownOver: 88TH PLACE
07-LA-110-15.75-LA, Los Angeles, CA
Built 1956 ADT: 2,000
INTERSTATE 110
UnknownOver: 92ND STREET
07-LA-110-15.47-LA, Los Angeles, CA
Built 1958 ADT: 1,000
INTERSTATE 110
UnknownOver: COLDEN AVENUE
07-LA-110-15.22-LA, Los Angeles, CA
Built 1958 ADT: 3,200
I 110
UnknownOver: CENTURY BLVD
07-LA-110-14.97-LA, Los Angeles, CA
Built 1958 ADT: 43,000
INTERSTATE 110
UnknownOver: 104TH STREET
07-LA-110-14.72-LA, Los Angeles, CA
Built 1958 ADT: 2,500
INTERSTATE 110
UnknownOver: 108TH STREET
07-LA-110-14.47-LA, Los Angeles, CA
Built 1958 ADT: 7,200
ROUTE 10, E10-S405
UnknownOver: SAWTELLE BLVD
07-LA-010-R5.34-LA, Los Angeles, CA
Built 1963 ADT: 27,340
IMPERIAL HIGHWAY O
UnknownOver: ROUTE 110
07-LA-110-13.97-LA, Los Angeles, CA
Built 1989 ADT: 30,000
120TH STREET OC
UnknownOver: ROUTE 110
07-LA-110-13.47-LA, Los Angeles, CA
Built 1988 ADT: 260,000
KANAN ROAD
UnknownOver: ROUTE 101
07-LA-101-35.04-AGRH, Los Angeles, CA
Built 1964 ADT: 185,000
FIGUEROA STREET
UnknownOver: I 110
07-LA-110-13.20-LA, Los Angeles, CA
Built 1988 ADT: 260,000
EL SEGUNDO BLVD
UnknownOver: INTERSTATE 110
07-LA-110-12.90, Los Angeles, CA
Built 1993 ADT: 260,000
135TH STREET
UnknownOver: INTERSTATE 110
07-LA-110-12.39-LA, Los Angeles, CA
Built 1993 ADT: 253,000
149TH ST
UnknownOver: INTERSTATE 110
07-LA-110-11.52-LA, Los Angeles, CA
Built 1995 ADT: 253,000
UP RR
UnknownOver: INTERSTATE 110
07-LA-110-11.49-LA, Los Angeles, CA
Built 1995 ADT: 253,000
INTERSTATE 110
UnknownOver: REDONDO BEACH BLVD
07-LA-110-11.24-LA, Los Angeles, CA
Built 1960 ADT: 46,240
INTERSTATE 110
UnknownOver: ALONDRA BLVD
07-LA-110-10.74-LA, Los Angeles, CA
Built 1960 ADT: 12,800
INTERSTATE 110
UnknownOver: GARDENA BLVD
07-LA-110-10.49-LA, Los Angeles, CA
Built 1960 ADT: 11,200
INTERSTATE 110
UnknownOver: 168TH STREET
07-LA-110-10.32-LA, Los Angeles, CA
Built 1960 ADT: 6,670
I 110
UnknownOver: SR 91
07-LA-110-9.85-LA, Los Angeles, CA
Built 1960 ADT: 200,000
ROUTE 110
UnknownOver: 182ND STREET
07-LA-110-9.66-LA, Los Angeles, CA
Built 1960 ADT: 10,720
INTERSTATE 110
UnknownOver: 190TH STREET
07-LA-110-9.07-LA, Los Angeles, CA
Built 1960 ADT: 37,890
91&S110-N&S405 CON
UnknownOver: 190TH STREET
07-LA-110-9.07-LA, Los Angeles, CA
Built 1985 ADT: 37,890
INTERSTATE 110
UnknownOver: DEL AMO BLVD
07-LA-110-8.03-LA, Los Angeles, CA
Built 1962 ADT: 6,220
RTE 110
UnknownOver: TORRANCE BLVD
07-LA-110-7.74-LA, Los Angeles, CA
Built 1962 ADT: 34,100
CARSON STREET
UnknownOver: I-110
07-LA-110-7.02-LA, Los Angeles, CA
Built 1962 ADT: 199,500
223RD STREET
UnknownOver: INTERSTATE 110
07-LA-110-6.52-LA, Los Angeles, CA
Built 1962 ADT: 199,500
228TH ST OC
UnknownOver: ROUTE 110
07-LA-110-6.14-LA, Los Angeles, CA
Built 1962 ADT: 199,500
INTERSTATE 110
UnknownOver: SEPULVEDA BLVD
07-LA-110-5.45-LA, Los Angeles, CA
Built 1962 ADT: 50,238
INTERSTATE 110
UnknownOver: LOMITA BLVD
07-LA-110-4.63-LA, Los Angeles, CA
Built 1962 ADT: 28,400
INTERSTATE 110
UnknownOver: SR 1 (PACIFIC COAST HWY)
07-LA-110-4.06-LA, Los Angeles, CA
Built 1956 ADT: 53,500
INTERSTATE 110
UnknownOver: L STREET
07-LA-110-3.75-LA, Los Angeles, CA
Built 1956 ADT: 5,500
ROUTE 110
UnknownOver: ANAHEIM STREET
07-LA-110-3.26-LA, Los Angeles, CA
Built 1956 ADT: 26,153
INTERSTATE 110
UnknownOver: S110-C ST & C ST-S110 RP
07-LA-110-2.77-LA, Los Angeles, CA
Built 1956 ADT: 9,000
SIERRA HWY OC
UnknownOver: ROUTE 14
07-LA-014-R52.17, Los Angeles, CA
Built 1965 ADT: 105,000
Showing 1,651-1,700 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 |