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
VICTORY BL-S170 ON
UnknownOver: S170-VICTORY BL OFF-RAMP
07-LA-170-R17.33-LA, Los Angeles, CA
Built 1966 ADT: 3,000
BNSF, SCRRA METRO
UnknownOver: S710-W10 CONNECTOR RAMP
07-LA-710-R26.59-MONP, Los Angeles, CA
Built 1974 ADT: 60,000
E91-N605 CONNECTOR
UnknownOver: 605 & W91-S605 CONN
07-LA-091-R16.97-CRTS, Los Angeles, CA
Built 1966 ADT: 28,010
STATE ROUTE 91
UnknownOver: SR 605 & RAMPS
07-LA-091-R16.90-CRTS, Los Angeles, CA
Built 1966 ADT: 28,000
W91-S605 CONNECTOR
UnknownOver: ROUTE 605
07-LA-091-R16.93-CRTS, Los Angeles, CA
Built 1966 ADT: 30,670
STATE ROUTE 91
UnknownOver: STUDEBAKER ROAD
07-LA-091-R17.08-CRTS, Los Angeles, CA
Built 1968 ADT: 27,500
W91-N&S605 CONN
UnknownOver: STUDEBAKER ROAD
07-LA-091-R17.09-CRTS, Los Angeles, CA
Built 1968 ADT: 27,000
HELLMAN AVE
UnknownOver: INTERSTATE 710
07-LA-710-R27.11-LA, Los Angeles, CA
Built 1965 ADT: 45,500
STATE ROUTE 60
UnknownOver: MARKLAND DRIVE
07-LA-060-R6.30-MTBL, Los Angeles, CA
Built 1967 ADT: 25,000
W60-POTRERO GRANDE
UnknownOver: MARKLAND DR
07-LA-060-R6.30-MTBL, Los Angeles, CA
Built 1967 ADT: 24,000
195TH STREET
UnknownOver: INTERSTATE 605
07-LA-605-R3.40-CRTS, Los Angeles, CA
Built 1964 ADT: 231,000
INTERSTATE 605
UnknownOver: 183RD STREET
07-LA-605-R4.26-CRTS, Los Angeles, CA
Built 1966 ADT: 15,000
S710-HUMPHREYS AV
UnknownOver: E&W60-S710 CONNECTOR RMP
07-LA-710-24.32-LA, Los Angeles, CA
Built 1967 ADT: 241,000
N710-W60 CONNECTOR
UnknownOver: I 710 & SR 60,CONS,STS
07-LA-710-24.61-LA, Los Angeles, CA
Built 1967 ADT: 28,000
E&W60-S710 CONNCTR
UnknownOver: RTE60/710,FORD ST,3RDST
07-LA-060-R3.28-EALA, Los Angeles, CA
Built 1967 ADT: 2,900
S710-E60 CONNECTOR
UnknownOver: I 710 & SR 60, 1ST ST
07-LA-710-24.64-LA, Los Angeles, CA
Built 1967 ADT: 20,300
E&W60-N710 CONNCTR
UnknownOver: RTE 60/710,RAMP,3STREETS
07-LA-060-R3.26, Los Angeles, CA
Built 1967 ADT: 264,000
STATE ROUTE 91
UnknownOver: BELLFLOWER BLVD
07-LA-091-R15.61-BFL, Los Angeles, CA
Built 1968 ADT: 35,200
STATE ROUTE 91
UnknownOver: WOODRUFF AVE
07-LA-091-R16.07-BFL, Los Angeles, CA
Built 1968 ADT: 25,400
INTERSTATE 605
UnknownOver: CARSON STREET
07-LA-605-R1.74-LKW, Los Angeles, CA
Built 1966 ADT: 24,400
SPRING STREET
UnknownOver: INTERSTATE 605
07-LA-605-R0.29-LBCH, Los Angeles, CA
Built 1965 ADT: 209,000
CENTRALIA ROAD
UnknownOver: INTERSTATE 605
07-LA-605-R2.31-LKW, Los Angeles, CA
Built 1964 ADT: 221,000
DEL AMO BLVD
UnknownOver: INTERSTATE 605
07-LA-605-R2.87-CRTS, Los Angeles, CA
Built 1966 ADT: 231,000
REYES ADOBE RD
UnknownOver: US 101
07-LA-101-36.18-AGRH, Los Angeles, CA
Built 1965 ADT: 175,000
S710-W&E60 CONNECT
UnknownOver: CESAR E CHAVEZ AVE
07-LA-710-24.97-LA, Los Angeles, CA
Built 1967 ADT: 16,400
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 60
07-LA-060-R3.88, Los Angeles, CA
Built 1967 ADT: 253,000
STATE ROUTE 60
UnknownOver: WOODS AVENUE
07-LA-060-R4.08-MONP, Los Angeles, CA
Built 1967 ADT: 5,800
SOUTH STREET
UnknownOver: INTERSTATE 605
07-LA-605-R3.75-CRTS, Los Angeles, CA
Built 1966 ADT: 231,000
INTERSTATE 605
UnknownOver: STUDEBAKER ROAD
07-LA-605-R4.39-CRTS, Los Angeles, CA
Built 1966 ADT: 14,500
MEDNIK AVE
UnknownOver: STATE ROUTE 60
07-LA-060-R3.74, Los Angeles, CA
Built 1967 ADT: 261,000
INTERSTATE 605
UnknownOver: ARTESIA BLVD
07-LA-605-R4.77-CRTS, Los Angeles, CA
Built 1966 ADT: 14,500
N605-E&W91 CONN
UnknownOver: ARTESIA BLVD
07-LA-605-R4.78-CRTS, Los Angeles, CA
Built 1966 ADT: 16,100
PEDESTRIAN WALKWAY
UnknownOver: INTERSTATE 605
07-LA-605-R2.59-LKW, Los Angeles, CA
Built 1966 ADT: 183,100
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 134 & RAMPS
07-LA-134-R6.74-GNDL, Los Angeles, CA
Built 1968 ADT: 240,000
CENTRAL AVE
UnknownOver: STATE ROUTE 134
07-LA-134-R6.96-GNDL, Los Angeles, CA
Built 1968 ADT: 240,000
BRAND BLVD
UnknownOver: STATE ROUTE 134
07-LA-134-R7.13-GNDL, Los Angeles, CA
Built 1968 ADT: 239,000
LOUISE ST
UnknownOver: STATE ROUTE 134 & RAMPS
07-LA-134-R7.26-GNDL, Los Angeles, CA
Built 1968 ADT: 234,000
JACKSON ST
UnknownOver: STATE ROUTE 134
07-LA-134-R7.40-GNDL, Los Angeles, CA
Built 1965 ADT: 234,000
GENEVA ST
UnknownOver: STATE ROUTE 134
07-LA-134-R7.60-GNDL, Los Angeles, CA
Built 1968 ADT: 234,000
STATE ROUTE 91
UnknownOver: CLARK AVE
07-LA-091-R15.10-BFL, Los Angeles, CA
Built 1968 ADT: 8,000
STATE ROUTE 91
UnknownOver: ST RTE 19 (LAKEWOOD BL)
07-LA-091-6.03-BFL, Los Angeles, CA
Built 1968 ADT: 43,000
S19-E91 CONNECTOR
UnknownOver: ST RTE 19 (LAKEWOOD BL)
07-LA-019-6.03-BFL, Los Angeles, CA
Built 1968 ADT: 36,000
N19-W91 CONNECTOR
UnknownOver: ST RTE 19 (LAKEWOOD BL)
07-LA-019-6.07-BFL, Los Angeles, CA
Built 1968 ADT: 36,000
STATE ROUTE 91
UnknownOver: DOWNEY AVE
07-LA-091-R14.10-LBCH, Los Angeles, CA
Built 1970 ADT: 16,000
SR 170
UnknownOver: ARLETA AVE & SHELDON ST
07-LA-170-R20.10-LA, Los Angeles, CA
Built 1968 ADT: 3,120
SAN GABRIEL BLVD
UnknownOver: STATE ROUTE 60
07-LA-060-R8.55-RSMD, Los Angeles, CA
Built 1967 ADT: 232,000
SANTA ANITA AVE
UnknownOver: STATE ROUTE 60
07-LA-060-10.23-SEMT, Los Angeles, CA
Built 1966 ADT: 233,000
STATE ROUTE 60
UnknownOver: PECK ROAD
07-LA-060-11.00-SEMT, Los Angeles, CA
Built 1966 ADT: 16,000
STATE ROUTE 60
UnknownOver: WORKMAN MILL ROAD
07-LA-060-11.98, Los Angeles, CA
Built 1967 ADT: 16,500
SR 164 (ROSEMEAD)
UnknownOver: STATE ROUTE 60
07-LA-164-3.32, Los Angeles, CA
Built 1966 ADT: 233,000
Showing 2,101-2,150 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 |