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
STATE ROUTE 71
GoodOver: UP RR, AMTRAK, METROLINK
07-LA-071-1.31-POM, Los Angeles, CA
Built 1926 Load: 32.4 t ADT: 91,000
STATE ROUTE 1
GoodOver: PIPE LINE UC
07-LA-001-8.72-LA, Los Angeles, CA
Built 1934 Load: 32.4 t ADT: 33,000
INTERSTATE 405
GoodOver: CASPIAN AVE STORM DRAIN
07-LA-405-7.95-LBCH, Los Angeles, CA
Built 1961 Load: 32.4 t ADT: 285,000
SANTA FE BLD-S405
GoodOver: CASPIAN AVE STORM DRAIN
07-LA-405-7.95-LBCH, Los Angeles, CA
Built 1961 Load: 32.4 t ADT: 25,000
US 101
GoodOver: L A RI,RR,CENTER,MISSION
07-LA-101-0.08-LA, Los Angeles, CA
Built 1944 Load: 32.4 t ADT: 137,000
STATE ROUTE 71
GoodOver: 9TH ST STORM DRAIN (N)
07-LA-071-1.90-POM, Los Angeles, CA
Built 1958 Load: 32.4 t ADT: 72,000
STATE ROUTE 71
GoodOver: 9TH ST STORM DRAIN (S)
07-LA-071-1.92-POM, Los Angeles, CA
Built 1958 Load: 32.4 t ADT: 72,000
W10 BUSWAY
GoodOver: EATON WASH
07-LA-010S-27.84-EMTE, Los Angeles, CA
Built 1972 Load: 32.4 t ADT: 500
INTERSTATE 405
GoodOver: CHURCH LANE
07-LA-405-33.20-LA, Los Angeles, CA
Built 1955 Load: 32.4 t ADT: 274,000
ROUTE 2
GoodOver: SAN FERNANDO RD
07-LA-002-16.02-LA, Los Angeles, CA
Built 1958 Load: 32.4 t ADT: 153,000
US 101
GoodOver: KENMORE AVE SD
07-LA-101-4.73-LA, Los Angeles, CA
Built 1950 Load: 32.4 t ADT: 154,000
U.S. HIGHWAY 101
GoodOver: IVAR AVE
07-LA-101-7.31-LA, Los Angeles, CA
Built 1953 Load: 32.4 t ADT: 154,000
INTERSTATE 710
GoodOver: COMPTON CREEK
07-LA-710-10.59-LBCH, Los Angeles, CA
Built 1953 Load: 32.4 t ADT: 186,000
INTERSTATE 710
GoodOver: ATLANTIC AVE
07-LA-710-13.62-COM, Los Angeles, CA
Built 1954 Load: 32.4 t ADT: 230,000
INTERSTATE 10
GoodOver: PARK AVENUE
07-LA-010-45.55-POM, Los Angeles, CA
Built 1954 Load: 32.4 t ADT: 247,000
STATE ROUTE 110
GoodOver: 12TH STREET
07-LA-110-21.88-LA, Los Angeles, CA
Built 1953 Load: 32.4 t ADT: 270,000
INTERSTATE 110
GoodOver: 37TH STREET
07-LA-110-19.93-LA, Los Angeles, CA
Built 1996 Load: 32.4 t ADT: 300,000
INTERSTATE 110
GoodOver: PEDESTRIAN WALKWAY
07-LA-110-15.07-LA, Los Angeles, CA
Built 1958 Load: 32.4 t ADT: 244,000
INTERSTATE 10
GoodOver: SAN JOSE WASH
07-LA-010-44.89-POM, Los Angeles, CA
Built 1954 Load: 32.4 t ADT: 247,000
STATE ROUTE 134 EB
GoodOver: MONTE BONITO DR
07-LA-134-R11.33-LA, Los Angeles, CA
Built 1955 Load: 32.4 t ADT: 110,000
STATE ROUTE 2
GoodOver: DELAY DRIVE OH
07-LA-002-16.12-LA, Los Angeles, CA
Built 1958 Load: 32.4 t ADT: 153,000
INTERSTATE 5
GoodOver: LEMORAN AVE STORM DRAIN
07-LA-005-7.87-DNY, Los Angeles, CA
Built 1953 Load: 32.4 t ADT: 234,600
INTERSTATE 5
GoodOver: ALAMEDA AVE
07-LA-005-28.43-BRB, Los Angeles, CA
Built 1957 Load: 32.4 t ADT: 254,684
S5-ALAMEDA AVE-S5
GoodOver: ALAMEDA AVE
07-LA-005-28.43-BRB, Los Angeles, CA
Built 1957 Load: 32.4 t ADT: 7,805
N5-ALAMEDA AVE-N5
GoodOver: ALAMEDA AVE
07-LA-005-28.43-BRB, Los Angeles, CA
Built 1957 Load: 32.4 t ADT: 8,010
INTERSTATE 405
GoodOver: OHIO AVENUE
07-LA-405-31.05-LA, Los Angeles, CA
Built 1959 Load: 32.4 t ADT: 283,000
INTERSTATE 5
GoodOver: BUENA VISTA ST,WINONA AV
07-LA-005-31.23-BRB, Los Angeles, CA
Built 1960 Load: 32.4 t ADT: 239,020
N5-E&W118 CONNECTR
GoodOver: PAXTON STREET
07-LA-005-39.05-LA, Los Angeles, CA
Built 1976 Load: 32.4 t ADT: 55,945
INTERSTATE 5
GoodOver: METROLINK,UP RR,SAN FERN
07-LA-005-34.58-LA, Los Angeles, CA
Built 1961 Load: 32.4 t ADT: 187,358
INTERSTATE 405
GoodOver: UP RR
07-LA-405-20.18-HAW, Los Angeles, CA
Built 1963 Load: 32.4 t ADT: 260,800
INTERSTATE 405
GoodOver: CENTINELA CREEK
07-LA-405-25.54-CLC, Los Angeles, CA
Built 1963 Load: 32.4 t ADT: 294,000
INTERSTATE 405
GoodOver: WESTWOOD FLOOD CTRL CH
07-LA-405-28.61-LA, Los Angeles, CA
Built 1959 Load: 32.4 t ADT: 296,000
INTERSTATE 5
GoodOver: GOLF CREEK
07-LA-005-25.55-LA, Los Angeles, CA
Built 1957 Load: 32.4 t ADT: 264,292
INTERSTATE 10
GoodOver: FAIRGROVE STORM DRAIN
07-LA-010-31.94-BWP, Los Angeles, CA
Built 1956 Load: 32.4 t ADT: 230,000
INTERSTATE 10
GoodOver: VINELAND ST STORM DRN
07-LA-010-32.85-BWP, Los Angeles, CA
Built 1956 Load: 32.4 t ADT: 209,000
INTERSTATE 10
GoodOver: W BIG DALTON AVE STM DRN
07-LA-010-33.05-BWP, Los Angeles, CA
Built 1956 Load: 32.4 t ADT: 209,000
INTERSTATE 10
GoodOver: BIG DALTON AVE STORM DRN
07-LA-010-33.09-BWP, Los Angeles, CA
Built 1956 Load: 32.4 t ADT: 209,000
INTERSTATE 10
GoodOver: MEEKER AVE STORM DRAIN
07-LA-010-34.00-WCOV, Los Angeles, CA
Built 1956 Load: 32.4 t ADT: 215,000
INTERSTATE 10
GoodOver: GLENDORA STORM DRAIN
07-LA-010-35.81-WCOV, Los Angeles, CA
Built 1956 Load: 32.4 t ADT: 215,000
RAMP/CONNECTOR 5
GoodOver: BURBANK WESTERN CHANNEL
07-LA-005-31.35-BRB, Los Angeles, CA
Built 1960 Load: 32.4 t ADT: 9,996
INTERSTATE 405
GoodOver: PORT ROAD
07-LA-405-26.29-CLC, Los Angeles, CA
Built 1960 Load: 32.4 t ADT: 296,000
STATE ROUTE 71
GoodOver: PHILADELPHIA ST STM DRN
07-LA-071-R3.88-POM, Los Angeles, CA
Built 1958 Load: 32.4 t ADT: 77,000
INTERSTATE 405
GoodOver: BEL AIR CREST RD NORTH
07-LA-405-35.81-LA, Los Angeles, CA
Built 1962 Load: 32.4 t ADT: 274,000
U.S. HIGHWAY 101
GoodOver: RUBIO AVE STORM DRAIN
07-LA-101-18.69-LA, Los Angeles, CA
Built 1958 Load: 32.4 t ADT: 296,000
INTERSTATE 5
GoodOver: EAST CANYON CHANNEL
07-LA-005-40.53-LA, Los Angeles, CA
Built 1963 Load: 32.4 t ADT: 156,373
INTERSTATE 110
GoodOver: 138TH STREET STORM DRAIN
07-LA-110-12.17-LA, Los Angeles, CA
Built 1960 Load: 32.4 t ADT: 253,000
INTERSTATE 710
GoodOver: LAGUNA CHANNEL
07-LA-710-26.12-MONP, Los Angeles, CA
Built 1961 Load: 32.4 t ADT: 185,000
FIRESTONE-S605 RMP
GoodOver: UP RR, DOWNEY-NORWALK RD
07-LA-605-R8.23-NRW, Los Angeles, CA
Built 1993 Load: 32.4 t ADT: 2,600
N605-FIRESTONE RMP
GoodOver: UP RR, DOWNEY-NORWALK RD
07-LA-605-R8.23-NRW, Los Angeles, CA
Built 1990 Load: 32.4 t ADT: 2,600
ROUTE 5
GoodOver: BURBANK WEST CHANNEL
07-LA-005-30.00-BRB, Los Angeles, CA
Built 1960 Load: 32.4 t ADT: 239,016
Showing 20,751-20,800 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.