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
MOUNTAIN SPRNGS RD
UnknownOver: STATE ROUTE 14
07-LA-014-R53.80, Los Angeles, CA
Built 1965 ADT: 105,000
117TH STREET OC
UnknownOver: ROUTE 110
07-LA-110-13.72-LA, Los Angeles, CA
Built 1985 ADT: 260,000
PEDESTRIAN WALKWAY
UnknownOver: U.S. HIGHWAY 101
07-LA-101-33.99-AGRH, Los Angeles, CA
Built 1963 ADT: 185,000
RAMP/CONNECTOR 14
UnknownOver: SIERRA HWY
07-LA-014-R54.50, Los Angeles, CA
Built 1965 ADT: 105,000
STATE ROUTE 14
UnknownOver: VINCENT RAMP UC
07-LA-014-R54.55, Los Angeles, CA
Built 1965 ADT: 11,700
INTERSTATE 710
UnknownOver: ATLANTIC BLVD
07-LA-710-21.92-BELL, Los Angeles, CA
Built 1957 ADT: 18,900
FLOWER ST & LRT
UnknownOver: INTERSTATE 110
07-LA-110-20.76-LA, Los Angeles, CA
Built 1956 ADT: 244,600
W10 BUSWAY
UnknownOver: BALDWIN AVE
07-LA-010S-27.96-EMTE, Los Angeles, CA
Built 1956 ADT: 16,300
INTERSTATE 10 WB
UnknownOver: BALDWIN AVE
07-LA-010-27.96-EMTE, Los Angeles, CA
Built 1958 ADT: 16,000
INTERSTATE 10 EB
UnknownOver: BALDWIN AVE
07-LA-010-27.96-EMTE, Los Angeles, CA
Built 1956 ADT: 16,300
I 10 WB
UnknownOver: METROLINK, SCRTD BUSWAY
07-LA-010S-28.01-EMTE, Los Angeles, CA
Built 1956 ADT: 108,950
INTERSTATE 10
UnknownOver: MEEKER RD
07-LA-010-29.34-EMTE, Los Angeles, CA
Built 1956 ADT: 2,700
INTERSTATE 10
UnknownOver: STEWART ST-E10 ON-RAMP
07-LA-010-29.90-EMTE, Los Angeles, CA
Built 1956 ADT: 234,700
INTERSTATE 10
UnknownOver: DURFEE RD
07-LA-010-30.51-EMTE, Los Angeles, CA
Built 1956 ADT: 12,000
INTERSTATE 10
UnknownOver: W10-GARVEY AVE OFF-RAMP
07-LA-010-30.58-EMTE, Los Angeles, CA
Built 1956 ADT: 9,800
INTERSTATE 10
UnknownOver: VINCENT AVE
07-LA-010-35.40-WCOV, Los Angeles, CA
Built 1956 ADT: 14,000
I 710
UnknownOver: OLYMPIC BLVD
07-LA-710-23.44-LA, Los Angeles, CA
Built 1955 ADT: 18,500
S405-N110/110 SEP
UnknownOver: INTERSTATE 110
07-LA-405-12.94-LA, Los Angeles, CA
Built 1961 ADT: 224,000
STATE ROUTE 1
UnknownOver: DE FOREST AVENUE
07-LA-001-7.08-LBCH, Los Angeles, CA
Built 1957 ADT: 640
U.S. HIGHWAY 101
UnknownOver: BALBOA BLVD
07-LA-101-19.22-LA, Los Angeles, CA
Built 1958 ADT: 37,860
LOUISE AVE
UnknownOver: ROUTE 101
07-LA-101-19.74-LA, Los Angeles, CA
Built 1958 ADT: 296,000
U.S. HIGHWAY 101
UnknownOver: WHITE OAK AVE
07-LA-101-20.23-LA, Los Angeles, CA
Built 1959 ADT: 35,710
U.S. HIGHWAY 101
UnknownOver: LINDLEY AVE
07-LA-101-20.73-LA, Los Angeles, CA
Built 1959 ADT: 23,500
U.S. HIGHWAY 101
UnknownOver: BURBANK BLVD
07-LA-101-21.02-LA, Los Angeles, CA
Built 1959 ADT: 28,965
U.S. HIGHWAY 101
UnknownOver: TAMPA AVE
07-LA-101-22.25-LA, Los Angeles, CA
Built 1959 ADT: 29,800
U.S. HIGHWAY 101
UnknownOver: WINNETKA AVE
07-LA-101-23.26-LA, Los Angeles, CA
Built 1959 ADT: 19,537
U.S. HIGHWAY 101
UnknownOver: DE SOTO AVE
07-LA-101-24.31-LA, Los Angeles, CA
Built 1957 ADT: 30,709
U.S. HIGHWAY 101
UnknownOver: CANOGA AVE
07-LA-101-24.85-LA, Los Angeles, CA
Built 1957 ADT: 25,000
U.S. HIGHWAY 101
UnknownOver: ROUTE 27
07-LA-101-25.34-LA, Los Angeles, CA
Built 1956 ADT: 42,000
U.S. HIGHWAY 101
UnknownOver: VENTURA BLVD
07-LA-101-25.76-LA, Los Angeles, CA
Built 1956 ADT: 31,559
GLENDALE BLVD
UnknownOver: I-5
07-LA-005-23.66-LA, Los Angeles, CA
Built 1961 ADT: 264,292
HYPERION AVE
UnknownOver: I-5
07-LA-005-23.72-LA, Los Angeles, CA
Built 1928 ADT: 264,292
LOS FELIZ BLVD OC
UnknownOver: I-5
07-LA-005-24.30-LA, Los Angeles, CA
Built 1956 ADT: 40,581
METRO,UP RR,AMTRAK
UnknownOver: I-5 SUPPLEMENTAL ROUTE
07-LA-005S-25.31-GNDL, Los Angeles, CA
Built 1957 ADT: 19,000
I-5 SUP ROUTE
UnknownOver: INTERSTATE 5
07-LA-005S-25.78-LA, Los Angeles, CA
Built 1957 ADT: 263,000
STATE ROUTE 134 EB
UnknownOver: INTERSTATE 5
07-LA-134-R5.47R-LA, Los Angeles, CA
Built 1967 ADT: 263,000
INTERSTATE 5
UnknownOver: LOS ANGELES RI,SR 134 WB
07-LA-005-27.07-GNDL, Los Angeles, CA
Built 1957 ADT: 189,567
S5-WESTERN & WESTE
UnknownOver: WESTERN AVE
07-LA-005-27.84-GNDL, Los Angeles, CA
Built 1957 ADT: 16,106
S605-S5 CONNECTOR
UnknownOver: ROUTE 5
07-LA-605-R9.65-SFSP, Los Angeles, CA
Built 1965 ADT: 214,000
OLIVE AVE
UnknownOver: ROUTE 5 & OLIVE AVE
07-LA-005-29.16-BRB, Los Angeles, CA
Built 1959 ADT: 239,020
MAGNOLIA BOULEVARD
UnknownOver: ROUTE 5 & FRONTAGE RD
07-LA-005-29.39-BRB, Los Angeles, CA
Built 1959 ADT: 239,020
52ND PLACE
UnknownOver: INTERSTATE 110
07-LA-110-18.39-LA, Los Angeles, CA
Built 1993 ADT: 300,000
LOS FELIZ BL-N5 ON
UnknownOver: I-5
07-LA-005-24.21-LA, Los Angeles, CA
Built 1956 ADT: 264,292
US HIGHWAY 101 SB
UnknownOver: SEPULVEDA BLVD
07-LA-101-16.94L-LA, Los Angeles, CA
Built 1959 ADT: 25,000
US HIGHWAY 101 NB
UnknownOver: SEPULVEDA BLVD
07-LA-101-16.94R-LA, Los Angeles, CA
Built 1959 ADT: 25,000
U.S. HIGHWAY 101
UnknownOver: HASKELL AVE
07-LA-101-17.50L-LA, Los Angeles, CA
Built 1958 ADT: 7,500
U.S. HIGHWAY 101
UnknownOver: HASKELL AVE
07-LA-101-17.51R-LA, Los Angeles, CA
Built 1958 ADT: 7,500
U.S. HIGHWAY 101
UnknownOver: HAVENHURST AVE
07-LA-101-18.61-LA, Los Angeles, CA
Built 1958 ADT: 82,000
PEDESTRIAN WALKWAY
UnknownOver: STATE ROUTE 110 & RAMPS
07-LA-110-24.37-LA, Los Angeles, CA
Built 1962 ADT: 182,000
SAN FERNANDO RD
UnknownOver: I-5 SUPPLEMENTAL ROUTE
07-LA-005S-25.29-GNDL, Los Angeles, CA
Built 1957 ADT: 19,000
Showing 1,701-1,750 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 |