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
INTERSTATE 5
UnknownOver: ST RTE 60 W/B
07-LA-005-16.44-LA, Los Angeles, CA
Built 1948 ADT: 95,000
LORENA STREET
UnknownOver: ROUTE 5
07-LA-005-15.65-LA, Los Angeles, CA
Built 1947 ADT: 258,000
ESPERANZA STREET
UnknownOver: ROUTE 5
07-LA-005-15.33-LA, Los Angeles, CA
Built 1948 ADT: 258,000
OLYMPIC BLVD
UnknownOver: ROUTE 5
07-LA-005-14.16, Los Angeles, CA
Built 1951 ADT: 251,000
EASTERN AVE
UnknownOver: ROUTE 5 & CONN
07-LA-005-13.89-CMRC, Los Angeles, CA
Built 1951 ADT: 256,020
VERMONT AVE
UnknownOver: ROUTE 101
07-LA-101-4.40-LA, Los Angeles, CA
Built 1949 ADT: 175,000
U.S. HIGHWAY 1 101
UnknownOver: VIRGIL AVE
07-LA-101-4.08-LA, Los Angeles, CA
Built 1949 ADT: 43,966
U.S. HIGHWAY 101
UnknownOver: VIRGIL AVE
07-LA-101-4.08-LA, Los Angeles, CA
Built 1949 ADT: 43,986
U.S. HIGHWAY 101
UnknownOver: HOOVER STREET
07-LA-101-3.94-LA, Los Angeles, CA
Built 1949 ADT: 15,750
BENTON WAY
UnknownOver: ROUTE 101
07-LA-101-3.34-LA, Los Angeles, CA
Built 1947 ADT: 175,000
ROSEMONT AVE
UnknownOver: ROUTE 101
07-LA-101-3.01-LA, Los Angeles, CA
Built 1949 ADT: 154,000
ALVARADO ST SEP
UnknownOver: ROUTE 101
07-LA-101-2.86-LA, Los Angeles, CA
Built 1948 ADT: 37,500
BONNIE BRAE ST
UnknownOver: ROUTE 101
07-LA-101-2.71-LA, Los Angeles, CA
Built 1949 ADT: 265,000
U.S. HIGHWAY 101
UnknownOver: GLENDALE BLVD
07-LA-101-2.48-LA, Los Angeles, CA
Built 1950 ADT: 34,017
EAST EDGEWARE RD
UnknownOver: ROUTE 101
07-LA-101-2.07-LA, Los Angeles, CA
Built 1949 ADT: 265,000
N&S110-N101 CONNEC
UnknownOver: BEAUDRY AVE
07-LA-110-23.75-LA, Los Angeles, CA
Built 1949 ADT: 15,000
STATE ROUTE 110
UnknownOver: N110-N101 & S110-S101
07-LA-110-23.69-LA, Los Angeles, CA
Built 1949 ADT: 167,000
S101-N110 CONNECT
UnknownOver: ROUTE 110
07-LA-101-1.57-LA, Los Angeles, CA
Built 1949 ADT: 175,000
N101-S110 CONNECTO
UnknownOver: ROUTE 110
07-LA-101-1.57-LA, Los Angeles, CA
Built 1949 ADT: 175,000
US 101 SB
UnknownOver: I 110,101-110 CONNECTORS
07-LA-101-1.57-LA, Los Angeles, CA
Built 1949 ADT: 175,000
US 101 NB
UnknownOver: I 110,101-110 CONNECTORS
07-LA-101-1.57-LA, Los Angeles, CA
Built 1949 ADT: 162,000
N101-N&S110 CONN
UnknownOver: FIGUEROA STREET
07-LA-101-1.45-LA, Los Angeles, CA
Built 1949 ADT: 21,700
N&S110-S101 CONN
UnknownOver: FIGUEROA STREET
07-LA-110-23.68-LA, Los Angeles, CA
Built 1949 ADT: 99
US 101 SB
UnknownOver: FIGUEROA STREET
07-LA-101-1.45-LA, Los Angeles, CA
Built 1949 ADT: 23,000
STATE ROUTE 101 NB
UnknownOver: FIGUEROA STREET
07-LA-101-1.45-LA, Los Angeles, CA
Built 1949 ADT: 23,000
GRAND AVE
UnknownOver: ROUTE 101
07-LA-101-1.32-LA, Los Angeles, CA
Built 1948 ADT: 137,000
HILL STREET
UnknownOver: ROUTE 101
07-LA-101-1.13-LA, Los Angeles, CA
Built 1951 ADT: 137,000
BROADWAY
UnknownOver: ROUTE 101
07-LA-101-1.08-LA, Los Angeles, CA
Built 1950 ADT: 137,000
SPRING ST
UnknownOver: ROUTE 101
07-LA-101-1.01-LA, Los Angeles, CA
Built 1949 ADT: 140,000
MAIN STREET
UnknownOver: ROUTE 101
07-LA-101-0.93-LA, Los Angeles, CA
Built 1950 ADT: 140,000
LOS ANGELES ST
UnknownOver: ROUTE 101
07-LA-101-0.87-LA, Los Angeles, CA
Built 1950 ADT: 137,000
I 5
UnknownOver: WASHINGTON BLVD
07-LA-005-11.55-CMRC, Los Angeles, CA
Built 1953 ADT: 20,910
BNSF,AMTRAK,METRO
UnknownOver: INTERSTATE 5
07-LA-005-11.04-CMRC, Los Angeles, CA
Built 1952 ADT: 218,000
INTERSTATE 5
UnknownOver: GARFIELD AVE
07-LA-005-10.88-CMRC, Los Angeles, CA
Built 1952 ADT: 25,800
INTERSTATE 5
UnknownOver: SLAUSON AVE & UP RR
07-LA-005-9.70-CMRC, Los Angeles, CA
Built 1953 ADT: 18,500
INTERSTATE 5
UnknownOver: LAKEWOOD BLVD
07-LA-005-8.29-DNY, Los Angeles, CA
Built 1953 ADT: 27,030
HERBERT AVENUE
UnknownOver: I 10, BUSWAY, METROLINK
07-LA-010-20.22-LA, Los Angeles, CA
Built 1972 ADT: 5,000
SCRRA, BNSF, METRO
UnknownOver: I-10 WB & W10-S710 CONN
07-LA-010-21.57-ALH, Los Angeles, CA
Built 1974 ADT: 3,000
INTERSTATE 10 WB
UnknownOver: FREMONT AVE
07-LA-010-22.31-ALH, Los Angeles, CA
Built 1952 ADT: 22,300
INTERSTATE 10 EB
UnknownOver: FREMONT AVE
07-LA-010-22.31-ALH, Los Angeles, CA
Built 1952 ADT: 17,000
WB10-SB ATLANTIC
UnknownOver: ATLANTIC BLVD
07-LA-010-23.33-ALH, Los Angeles, CA
Built 1953 ADT: 46,300
INTERSTATE 10 WB
UnknownOver: ATLANTIC BLVD
07-LA-010-23.33-ALH, Los Angeles, CA
Built 1953 ADT: 46,300
INTERSTATE 10 EB
UnknownOver: ATLANTIC BLVD
07-LA-010-23.33-ALH, Los Angeles, CA
Built 1953 ADT: 46,300
EB10-NB ATLANTIC
UnknownOver: ATLANTIC BLVD
07-LA-010-23.33-ALH, Los Angeles, CA
Built 1953 ADT: 46,300
WB10-SB GARFIELD
UnknownOver: GARFIELD AVE
07-LA-010-23.99-ALH, Los Angeles, CA
Built 1953 ADT: 39,500
INTERSTATE 10 WB
UnknownOver: GARFIELD AVE
07-LA-010-23.99-ALH, Los Angeles, CA
Built 1953 ADT: 39,500
INTERSTATE 10 EB
UnknownOver: GARFIELD AVE
07-LA-010-23.99-ALH, Los Angeles, CA
Built 1953 ADT: 39,500
EB10-NB GARFIELD
UnknownOver: GARFIELD AVE
07-LA-010-23.99-ALH, Los Angeles, CA
Built 1953 ADT: 39,500
ALMANSOR AVE
UnknownOver: RTE 10, SCRRA, BNSF, HOV
07-LA-010-24.32-ALH, Los Angeles, CA
Built 1953 ADT: 215,000
WB 10
UnknownOver: NEW AVE
07-LA-010-24.83-ALH, Los Angeles, CA
Built 1953 ADT: 15,584
Showing 1,451-1,500 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 |