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 405
UnknownOver: CENTURY BLVD
07-LA-405-22.22-ING, Los Angeles, CA
Built 1963 ADT: 100,000
ARBOR VITAE STREET
UnknownOver: ROUTE 405
07-LA-405-22.40-ING, Los Angeles, CA
Built 1963 ADT: 1,000
HILLCREST BLVD
UnknownOver: ROUTE 405
07-LA-405-23.00-ING, Los Angeles, CA
Built 1963 ADT: 1,200
MANCHESTER BLVD
UnknownOver: ROUTE 405 & MNCHSTR-N405
07-LA-405-23.36-ING, Los Angeles, CA
Built 1961 ADT: 268,000
BNSF RAILWAY
UnknownOver: I-405 & NB RAMPS
07-LA-405-23.51-ING, Los Angeles, CA
Built 1961 ADT: 99
W FLORENCE AVENUE
UnknownOver: I-405 & NB RAMPS
07-LA-405-23.50-ING, Los Angeles, CA
Built 1961 ADT: 266,000
LA CIENEGA BLVD NB
UnknownOver: INTERSTATE 405
07-LA-405-23.64-ING, Los Angeles, CA
Built 1961 ADT: 266,000
LA CIENEGA BLVD SB
UnknownOver: INTERSTATE 405
07-LA-405-23.71-ING, Los Angeles, CA
Built 1961 ADT: 5,000
LA TIJERA BLVD
UnknownOver: ROUTE 405
07-LA-405-24.27-LA, Los Angeles, CA
Built 1963 ADT: 266,000
S710-E10 CONNECTOR
UnknownOver: I 710, I 10, SCRRA, BNSF
07-LA-710-R26.57-MONP, Los Angeles, CA
Built 1965 ADT: 500
INTERSTATE 405
UnknownOver: 213TH STREET
07-LA-405-10.88-CRSN, Los Angeles, CA
Built 1961 ADT: 3,900
PEDESTRIAN WALKWAY
UnknownOver: U.S. HIGHWAY 101
07-LA-101-19.50-LA, Los Angeles, CA
Built 1958 ADT: 296,000
STATE ROUTE 134
UnknownOver: VINELAND AVENUE
07-LA-134-0.35-LA, Los Angeles, CA
Built 1962 ADT: 18,950
STATE ROUTE 134
UnknownOver: LANKERSHIM BLVD
07-LA-134-0.51-LA, Los Angeles, CA
Built 1962 ADT: 26,000
STATE ROUTE 134
UnknownOver: CAHUENGA BLVD
07-LA-134-0.86-LA, Los Angeles, CA
Built 1962 ADT: 16,800
STATE ROUTE 134
UnknownOver: LEDGE AVE
07-LA-134-1.11-LA, Los Angeles, CA
Built 1962 ADT: 1,450
STATE ROUTE 134
UnknownOver: FORMAN AVE
07-LA-134-1.36-LA, Los Angeles, CA
Built 1962 ADT: 4,975
PASS AVE
UnknownOver: STATE ROUTE 134 & ONRAMP
07-LA-134-1.82-BRB, Los Angeles, CA
Built 1962 ADT: 216,000
ALAMEDA AVE
UnknownOver: STATE ROUTE 134 & ONRAMP
07-LA-134-2.03-BRB, Los Angeles, CA
Built 1962 ADT: 209,000
HOLLYWOOD WAY
UnknownOver: STATE ROUTE 134 & RAMPS
07-LA-134-2.11-BRB, Los Angeles, CA
Built 1962 ADT: 213,000
OLIVE AVE
UnknownOver: STATE ROUTE 134, OFFRAMP
07-LA-134-2.24-BRB, Los Angeles, CA
Built 1962 ADT: 213,000
CALIFORNIA STREET
UnknownOver: STATE ROUTE 134
07-LA-134-2.39-BRB, Los Angeles, CA
Built 1962 ADT: 213,000
STATE ROUTE 134
UnknownOver: BOB HOPE DRIVE
07-LA-134-2.67-BRB, Los Angeles, CA
Built 1962 ADT: 13,000
STATE ROUTE 134
UnknownOver: RIVERSIDE DR & ON-RAMP
07-LA-134-2.90-BRB, Los Angeles, CA
Built 1962 ADT: 20,110
S710-S405 CONNECTR
UnknownOver: ROUTE 710 & CONNECTORS
07-LA-710-9.38-LBCH, Los Angeles, CA
Built 1961 ADT: 169,000
STATE ROUTE 134
UnknownOver: FOREST LAWN DRIVE
07-LA-134-3.81-LA, Los Angeles, CA
Built 1962 ADT: 10,700
RIVERSIDE DRIVE
UnknownOver: STATE ROUTE 134
07-LA-134-4.81-LA, Los Angeles, CA
Built 1962 ADT: 23,400
PEDESTRIAN WALKWAY
UnknownOver: U.S. HIGHWAY 101
07-LA-101-19.99-LA, Los Angeles, CA
Built 1959 ADT: 296,000
BURBANK BLVD
UnknownOver: I 405
07-LA-405-40.29-LA, Los Angeles, CA
Built 1963 ADT: 220,000
111TH PLACE
UnknownOver: I 110
07-LA-110-14.18-LA, Los Angeles, CA
Built 1989 ADT: 300,000
RTE 10 & RAMPS
UnknownOver: RTE 110 & 29 STREETS
07-LA-010-14.23-LA, Los Angeles, CA
Built 1959 ADT: 1,000
BARRANCA ST
UnknownOver: INTERSTATE 10, RAMPS
07-LA-010-38.01-WCOV, Los Angeles, CA
Built 1975 ADT: 223,000
U.S. HIGHWAY 101
UnknownOver: COLFAX AVE
07-LA-101-12.35-LA, Los Angeles, CA
Built 1959 ADT: 11,000
CESAR E. CHAVEZ AV
UnknownOver: INTERSTATE 5
07-LA-005-18.06-LA, Los Angeles, CA
Built 1959 ADT: 241,740
U.S. HIGHWAY 101
UnknownOver: LAUREL CANYON BLVD
07-LA-101-12.85-LA, Los Angeles, CA
Built 1959 ADT: 25,000
I 5
UnknownOver: S5-E10 CONNECTOR RAMP
07-LA-005-18.38-LA, Los Angeles, CA
Built 1959 ADT: 35,190
S5 - E10 CONNECTOR
UnknownOver: MISSION RD - S5 ON RAMP
07-LA-005-18.62-LA, Los Angeles, CA
Built 1959 ADT: 9,078
INTERSTATE 110
UnknownOver: INTERSTATE 10 WB
07-LA-110-21.45-LA, Los Angeles, CA
Built 1959 ADT: 243,000
INTERSTATE 110
UnknownOver: W10-S110 CONNECTOR RAMP
07-LA-110-21.48-LA, Los Angeles, CA
Built 1959 ADT: 267,100
GRIDLEY ROAD
UnknownOver: STATE ROUTE 91
07-LA-091-R17.57-CRTS, Los Angeles, CA
Built 1968 ADT: 30,600
STATE ST ON-R OC
UnknownOver: CONN NB 5 TO EB 10
07-LA-005-18.37-LA, Los Angeles, CA
Built 1959 ADT: 44,370
S5-STATE ST OFF RA
UnknownOver: W10-S5 CONNECTOR RAMP
07-LA-005-18.31-LA, Los Angeles, CA
Built 1959 ADT: 38,760
SOTO STREET
UnknownOver: ROUTE 60 WB
07-LA-060-0.38-LA, Los Angeles, CA
Built 1960 ADT: 91,700
STATE STREET
UnknownOver: RTE 10 & CONN
07-LA-010-18.59-LA, Los Angeles, CA
Built 1959 ADT: 30,000
RTE 5/10 SEP
UnknownOver: I 10 & OFF-RAMP
07-LA-005-18.42-LA, Los Angeles, CA
Built 1959 ADT: 2,040
S5-E10 CONNECTOR R
UnknownOver: ROUTE 10
07-LA-005-18.47-LA, Los Angeles, CA
Built 1959 ADT: 96,000
W10-S5 CONNECTOR
UnknownOver: INTERSTATE 10
07-LA-010-S0.55-LA, Los Angeles, CA
Built 1959 ADT: 254,000
S5-E10 CONNECTOR R
UnknownOver: CONN, BUSWAY, METROLINK
07-LA-005-18.53-LA, Los Angeles, CA
Built 1959 ADT: 5,000
INTERSTATE 5
UnknownOver: CONN, BUSWAY, METROLINK
07-LA-005-18.52-LA, Los Angeles, CA
Built 1959 ADT: 5,300
W10-N5 CONN
UnknownOver: CONN, BUSWAY, METROLINK
07-LA-010-18.41-LA, Los Angeles, CA
Built 1959 ADT: 16,500
Showing 1,851-1,900 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 |