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
EB 10
UnknownOver: NEW AVE
07-LA-010-24.83-ALH, Los Angeles, CA
Built 1953 ADT: 15,584
E10-NEW AV-E10
UnknownOver: NEW AVE
07-LA-010-24.83-MONP, Los Angeles, CA
Built 1953 ADT: 18,216
INTERSTATE 10 WB
UnknownOver: DEL MAR AVE
07-LA-010-25.33-SGB, Los Angeles, CA
Built 1953 ADT: 16,192
INTERSTATE 10 EB
UnknownOver: DEL MAR AVE
07-LA-010-25.33-SGB, Los Angeles, CA
Built 1953 ADT: 22,264
E10-DEL MAR
UnknownOver: DEL MAR AVE
07-LA-010-25.33-SGB, Los Angeles, CA
Built 1953 ADT: 22,264
W10-SAN GABRIEL BL
UnknownOver: SAN GABRIEL BLVD
07-LA-010-25.84-RSMD, Los Angeles, CA
Built 1953 ADT: 19,060
INTERSTATE 10 WB
UnknownOver: SAN GABRIEL BLVD
07-LA-010-25.84-RSMD, Los Angeles, CA
Built 1953 ADT: 7,000
INTERSTATE 10 EB
UnknownOver: SAN GABRIEL BLVD
07-LA-010-25.84-RSMD, Los Angeles, CA
Built 1953 ADT: 7,000
E10-SAN GABRIEL BL
UnknownOver: SAN GABRIEL BLVD
07-LA-010-25.84-RSMD, Los Angeles, CA
Built 1953 ADT: 19,070
INTERSTATE 10 WB
UnknownOver: WALNUT GROVE AVE
07-LA-010-26.34-RSMD, Los Angeles, CA
Built 1953 ADT: 15,200
INTERSTATE 10 EB
UnknownOver: WALNUT GROVE AVE
07-LA-010-26.34-RSMD, Los Angeles, CA
Built 1953 ADT: 15,200
INTERSTATE 10
UnknownOver: SANTA ANITA AVE
07-LA-010-28.67-EMTE, Los Angeles, CA
Built 1956 ADT: 39,900
INTERSTATE 10
UnknownOver: VALLEY BOULEVARD
07-LA-010-29.55-EMTE, Los Angeles, CA
Built 1956 ADT: 30,600
INTERSTATE 10
UnknownOver: PECK ROAD
07-LA-010-29.43-EMTE, Los Angeles, CA
Built 1956 ADT: 3,800
INTERSTATE 10
UnknownOver: COGSWELL RD
07-LA-010-30.13-EMTE, Los Angeles, CA
Built 1956 ADT: 11,600
INTERSTATE 10
UnknownOver: FRANCISQUITO AVE
07-LA-010-32.66-BWP, Los Angeles, CA
Built 1956 ADT: 11,400
INTERSTATE 10
UnknownOver: PUENTE AVE
07-LA-010-33.35-BWP, Los Angeles, CA
Built 1956 ADT: 16,600
INTERSTATE 10
UnknownOver: CAMERON AVE
07-LA-010-34.28-WCOV, Los Angeles, CA
Built 1956 ADT: 12,000
INTERSTATE 10
UnknownOver: SUNSET AVE
07-LA-010-34.85-WCOV, Los Angeles, CA
Built 1956 ADT: 20,000
INTERSTATE 10
UnknownOver: AZUSA AVE
07-LA-010-36.48-WCOV, Los Angeles, CA
Built 1975 ADT: 2,040
INTERSTATE 10
UnknownOver: CITRUS STREET
07-LA-010-37.48-WCOV, Los Angeles, CA
Built 1971 ADT: 7,000
INTERSTATE 10
UnknownOver: HOLT AVE
07-LA-010-38.97-WCOV, Los Angeles, CA
Built 1975 ADT: 4,000
U.S. HIGHWAY 101
UnknownOver: MELROSE AVE
07-LA-101-4.85-LA, Los Angeles, CA
Built 1950 ADT: 12,000
U.S. HIGHWAY 101
UnknownOver: MELROSE AVE
07-LA-101-4.85-LA, Los Angeles, CA
Built 1950 ADT: 34,620
RTE 2 SANTA MONICA
UnknownOver: ROUTE 101
07-LA-002-12.73-LA, Los Angeles, CA
Built 1950 ADT: 212,500
WESTERN AVE
UnknownOver: U.S. HIGHWAY 101
07-LA-101-5.81-LA, Los Angeles, CA
Built 1950 ADT: 175,000
SUNSET BLVD
UnknownOver: ROUTE 101
07-LA-101-6.25-LA, Los Angeles, CA
Built 1951 ADT: 196,000
HOLLYWOOD BLVD O
UnknownOver: ROUTE 101
07-LA-101-6.52-LA, Los Angeles, CA
Built 1952 ADT: 90,000
U.S. HIGHWAY 101
UnknownOver: ARGYLE AV & FRANKLIN AV
07-LA-101-7.06-LA, Los Angeles, CA
Built 1953 ADT: 7,500
U.S. HIGHWAY 101
UnknownOver: CAHUENGA BLVD
07-LA-101-7.46-LA, Los Angeles, CA
Built 1952 ADT: 13,900
STATE ROUTE 110
UnknownOver: 1ST STREET
07-LA-110-23.34-LA, Los Angeles, CA
Built 1950 ADT: 37,000
STATE ROUTE 110
UnknownOver: 2ND STREET
07-LA-110-23.23-LA, Los Angeles, CA
Built 1950 ADT: 8,000
3RD ST
UnknownOver: STATE ROUTE 110& RAMPS
07-LA-110-23.12-LA, Los Angeles, CA
Built 1951 ADT: 99
5TH STREET
UnknownOver: STATE ROUTE 110 & RAMPS
07-LA-110-22.83-LA, Los Angeles, CA
Built 1953 ADT: 99
5TH ST-NB 110 ONRP
UnknownOver: NB 110-4TH & 3RD OFFRAMP
07-LA-110-22.91-LA, Los Angeles, CA
Built 1952 ADT: 99
INTERSTATE 405
UnknownOver: SEPULVEDA BLVD
07-LA-405-34.76-LA, Los Angeles, CA
Built 1962 ADT: 21,487
U.S. HIGHWAY 101
UnknownOver: ODIN STREET
07-LA-101-7.74-LA, Los Angeles, CA
Built 1954 ADT: 7,500
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 60 WB
07-LA-060-R1.06-LA, Los Angeles, CA
Built 1965 ADT: 210,000
INTERSTATE 405
UnknownOver: SR 187 (VENICE BLVD)
07-LA-405-27.95-CLC, Los Angeles, CA
Built 1959 ADT: 42,000
INTERSTATE 405
UnknownOver: UP RR,PICO,EXPOSITION
07-LA-405-29.85-LA, Los Angeles, CA
Built 1959 ADT: 24,000
S405-E&W10 CONNCTR
UnknownOver: PICO,EXPOSITION,SAWTELLE
07-LA-405-29.85-LA, Los Angeles, CA
Built 1964 ADT: 5,473
INTERSTATE 405
UnknownOver: OLYMPIC BLVD
07-LA-405-30.18-LA, Los Angeles, CA
Built 1959 ADT: 18,143
S110-E&W10 CONN
UnknownOver: VENICE BL, PICO BL, 12TH
07-LA-110-21.71-LA, Los Angeles, CA
Built 1962 ADT: 18,000
INTERSTATE 405
UnknownOver: SR 2 SANTA MONICA
07-LA-405-30.86-LA, Los Angeles, CA
Built 1959 ADT: 40,500
INTERSTATE 405
UnknownOver: WILSHIRE BLVD
07-LA-405-31.54, Los Angeles, CA
Built 1957 ADT: 78,839
FOUNTAIN AVE
UnknownOver: ROUTE 101
07-LA-101-5.94-LA, Los Angeles, CA
Built 1951 ADT: 175,000
BRONSON AVE OC
UnknownOver: ROUTE 101
07-LA-101-6.65-LA, Los Angeles, CA
Built 1977 ADT: 154,000
STATE ROUTE 1
UnknownOver: INTERSTATE 710
07-LA-001-7.29-LBCH, Los Angeles, CA
Built 1952 ADT: 33,000
WILLOW STREET
UnknownOver: INTERSTATE 710
07-LA-710-7.89-LBCH, Los Angeles, CA
Built 1947 ADT: 153,000
WARDLOW RD
UnknownOver: INTERSTATE 710
07-LA-710-9.07-LBCH, Los Angeles, CA
Built 1949 ADT: 153,000
Showing 1,501-1,550 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 |