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
BUDLONG AVE
UnknownOver: ROUTE 105 & LRT
07-LA-105-R6.52, Los Angeles, CA
Built 1985 ADT: 224,400
VERMONT AVENUE
UnknownOver: ROUTE 105 & LRT
07-LA-105-R6.74-LA, Los Angeles, CA
Built 1985 ADT: 224,400
ROUTE 105 & LRT
UnknownOver: HOOVER STREET
07-LA-105-R7.05-LA, Los Angeles, CA
Built 1985 ADT: 5,610
PEDESTRIAN WALKWAY
UnknownOver: I 10, HOV, SCRRA, BNSF
07-LA-010-25.10-SGB, Los Angeles, CA
Built 1972 ADT: 215,000
DEL MAR-W10 BUSWAY
UnknownOver: I 10&HOV WB, SCRRA, BNSF
07-LA-010S-25.14-SGB, Los Angeles, CA
Built 1972 ADT: 3,500
E10 BUSWAY-DEL MAR
UnknownOver: I 10&HOV WB, SCRRA, BNSF
07-LA-010S-25.14-SGB, Los Angeles, CA
Built 1972 ADT: 3,000
UNION STREET
UnknownOver: INTERSTATE 710
07-LA-710-R32.51-PAS, Los Angeles, CA
Built 1975 ADT: 66,000
E10 BUSWAY
UnknownOver: S710-W10 CONNECTOR
07-LA-010S-21.36-MONP, Los Angeles, CA
Built 1974 ADT: 3,000
E10 BUSWAY
UnknownOver: W10-CAMPUS RD OFFRAMP
07-LA-010S-21.17-LA, Los Angeles, CA
Built 1974 ADT: 4,000
W10 BUSWAY
UnknownOver: METROLINK & EB BUSWAY
07-LA-010S-21.07-LA, Los Angeles, CA
Built 1974 ADT: 6,200
W10 BUSWAY
UnknownOver: WBD 10 & SB 710 CONN
07-LA-010S-21.55-ALH, Los Angeles, CA
Built 1974 ADT: 119,950
E10 BUSWAY
UnknownOver: INTERSTATE 710
07-LA-010S-21.40-MONP, Los Angeles, CA
Built 1974 ADT: 3,000
STATE ROUTE 91
UnknownOver: MAIN STREET
07-LA-091-R6.90-CRSN, Los Angeles, CA
Built 1974 ADT: 22,900
MAIN ST-W91 ONRAMP
UnknownOver: MAIN STREET
07-LA-091-R6.90-CRSN, Los Angeles, CA
Built 1985 ADT: 22,800
STATE ROUTE 91
UnknownOver: BROADWAY
07-LA-091-R6.73-CRSN, Los Angeles, CA
Built 1985 ADT: 13,000
E&W91-S110 CONN
UnknownOver: ROUTES 110 & 91,CONS,STS
07-LA-091-R6.40-LA, Los Angeles, CA
Built 1985 ADT: 17,100
STATE ROUTE 91
UnknownOver: FIGUEROA STREET
07-LA-091-R6.52-LA, Los Angeles, CA
Built 1985 ADT: 17,938
BARLIN AVE
UnknownOver: ROUTE 105, LRT, RAMPS
07-LA-105-R15.54-DNY, Los Angeles, CA
Built 1987 ADT: 233,000
E105-LAKEWOOD OFF
UnknownOver: ROUTE 105, LRT
07-LA-105-R15.64-DNY, Los Angeles, CA
Built 1991 ADT: 233,000
LAKEWOOD BLVD
UnknownOver: ROUTE 105, LRT, RAMP
07-LA-105-R15.76-DNY, Los Angeles, CA
Built 1989 ADT: 2,800
HANWELL AVENUE
UnknownOver: ROUTE 105, LRT, RAMPS
07-LA-105-R15.94-DNY, Los Angeles, CA
Built 1988 ADT: 2,800
CLARK AVENUE
UnknownOver: ROUTE 105, LRT
07-LA-105-R16.14-DNY, Los Angeles, CA
Built 1989 ADT: 228,000
ARDIS AVENUE
UnknownOver: ROUTE 105, LRT, RAMP
07-LA-105-R16.39-DNY, Los Angeles, CA
Built 1989 ADT: 228,000
BELLFLOWER BLVD
UnknownOver: ROUTE 105, LRT
07-LA-105-R16.64-DNY, Los Angeles, CA
Built 1989 ADT: 228,000
DUNROBIN AVENUE
UnknownOver: ROUTE 105, LRT
07-LA-105-R16.89-DNY, Los Angeles, CA
Built 1987 ADT: 228,000
WOODRUFF AVENUE
UnknownOver: ROUTE 105, LRT
07-LA-105-R17.14-DNY, Los Angeles, CA
Built 1987 ADT: 201,000
BROADWAY POC
UnknownOver: PACIFIC COAST HIGHWAY
07-LA-001-35.39-SMCA, Los Angeles, CA
Built 1979 ADT: 77,760
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 1
07-LA-001-36.04-SMCA, Los Angeles, CA
Built 1979 ADT: 72,000
INTERSTATE 605
UnknownOver: ROUTE 105 & LRT
07-LA-605-R7.61-NRW, Los Angeles, CA
Built 1993 ADT: 201,000
N605-IMPHWY OFRMP
UnknownOver: ROUTE 105 & LRT
07-LA-605-R7.61-NRW, Los Angeles, CA
Built 1993 ADT: 17,500
ROUTE 105 & LRT
UnknownOver: YUKON AVENUE
07-LA-105-R4.23-ING, Los Angeles, CA
Built 1993 ADT: 1
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 1
07-LA-001-36.25-SMCA, Los Angeles, CA
Built 1979 ADT: 76,000
STATE ROUTE 103
UnknownOver: UP RR & N103-FORD AV OFF
07-LA-103-0.07-LA, Los Angeles, CA
Built 1947 ADT: 15,200
RTE 103
UnknownOver: ANAHEIM STREET OH
07-LA-103-0.90-LA, Los Angeles, CA
Built 1947 ADT: 34,294
SCRRA METROLINK
UnknownOver: W10 BUSWAY
07-LA-010S-28.26-EMTE, Los Angeles, CA
Built 1955 ADT: 1,000
PEDESTRIAN WALKWAY
UnknownOver: EB BUSWY,SCRRA METROLINK
07-LA-010S-18.65-LA, Los Angeles, CA
Built 1974 ADT: 6,200
PEDESTRIAN WALKWAY
UnknownOver: EB&WB BUSWAY,SCRRA,BNSF
07-LA-010S-21.20-LA, Los Angeles, CA
Built 1974 ADT: 9,400
STATE STREET
UnknownOver: I 10 BUSWAY & METROLINK
07-LA-010S-18.59-LA, Los Angeles, CA
Built 1925 ADT: 12,400
I-5 SB, S5 TO W10
UnknownOver: US 101, 7TH ST, ONRAMP
07-LA-005-16.90-LA, Los Angeles, CA
Built 1960 ADT: 136,000
TAMPA AVE
UnknownOver: ROUTE 118
07-LA-118-R4.64-LA, Los Angeles, CA
Built 1980 ADT: 222,000
STATE ROUTE 1 NB
UnknownOver: WB 10-NB 1 CONNECTOR RMP
07-LA-001-R34.67-SMCA, Los Angeles, CA
Built 1979 ADT: 2,300
IMPERIAL HIGHWAY
UnknownOver: ROUTE 105 & LRT
07-LA-105-R3.51-HAW, Los Angeles, CA
Built 1993 ADT: 29,000
EB PRAIRIE OFF RA
UnknownOver: ROUTE 105 & LRT
07-LA-105-R3.32-HAW, Los Angeles, CA
Built 1993 ADT: 190,500
CROSSROADS PKWY SO
UnknownOver: STATE ROUTE 60
07-LA-060-12.63-IDY, Los Angeles, CA
Built 1981 ADT: 265,000
ROUTE 105 & LRT
UnknownOver: STATE STREET
07-LA-105-R11.10-LYN, Los Angeles, CA
Built 1987 ADT: 12,000
W91-N110 CONN RAMP
UnknownOver: BROADWAY
07-LA-091-R6.73-CRSN, Los Angeles, CA
Built 1985 ADT: 12,900
W91-N110 CONN
UnknownOver: FIGUEROA STREET
07-LA-091-R6.51-LA, Los Angeles, CA
Built 1985 ADT: 9,000
E91-N110 CONNECTOR
UnknownOver: SR 91, N110-W91 CONN
07-LA-091-R6.37-LA, Los Angeles, CA
Built 1985 ADT: 271,000
S110-E91 CONNECTOR
UnknownOver: SR 91 EB
07-LA-110-9.83-LA, Los Angeles, CA
Built 1985 ADT: 44,500
N405-N110 CONNECTR
UnknownOver: INTERSTATE N110
07-LA-405-12.97-LA, Los Angeles, CA
Built 1985 ADT: 220,000
Showing 2,601-2,650 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 |