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
PLANZ ROAD
FairOver: KERN ISLAND CANAL
EAST OF SOUTH 'H' ST, Kern, CA
Built 1952 Load: 24.3 t ADT: 14,700
PACHECO ROAD
FairOver: KERN ISLAND CANAL
EAST OF SOUTH 'H' ST, Kern, CA
Built 1968 Load: 24.3 t ADT: 10,600
COLUMBUS AVE
FairOver: KERN ISLAND CANAL
0.2 MI W UNION AVE, Kern, CA
Built 1970 Load: 24.3 t ADT: 10,425
4TH STREET
FairOver: SANDY CREEK
SOUTH OF ASH STREET, Kern, CA
Built 1970 Load: 24.3 t ADT: 3,560
EMMONS PARK DRIVE
FairOver: SANDY CREEK
SOUTH OF ASH STREET, Kern, CA
Built 1970 Load: 24.3 t ADT: 500
TERRACE WAY
FairOver: KERN ISLAND CANAL
200' E CHESTER AVE, Kern, CA
Built 1958 Load: 24.3 t ADT: 4,960
WILLIAMS ST
FairOver: EAST SIDE CANAL
350 FT S MONTEREY ST, Kern, CA
Built 1967 Load: 24.3 t ADT: 5,300
ROBINSON ST
FairOver: EAST SIDE CANAL
SOUTH OF MONTEREY ST, Kern, CA
Built 1962 Load: 24.3 t ADT: 3,300
MILLER ST
FairOver: EAST SIDE CANAL
0.1 MI S MONTEREY ST, Kern, CA
Built 1960 Load: 24.3 t ADT: 6,300
GAGE ST
FairOver: EAST SIDE CANAL
0.1 MI S MONTEREY ST, Kern, CA
Built 1959 Load: 24.3 t ADT: 3,300
TULARE ST
FairOver: EAST SIDE CANAL
SOUTH OF MONTEREY ST, Kern, CA
Built 1950 Load: 24.3 t ADT: 4,300
VERNAL PLACE
FairOver: KERN ISLAND CANAL
0.1 MI N TERRACE WAY, Kern, CA
Built 1957 Load: 24.3 t ADT: 1,015
SOUTH GATE DR
FairOver: KERN ISLAND CANAL
EAST OF SOUTH 'H' ST, Kern, CA
Built 1957 Load: 24.3 t ADT: 1,500
BEALE AVENUE
FairOver: EAST SIDE CANAL
SOUTH MONTEREY STREET, Kern, CA
Built 1966 Load: 24.3 t ADT: 10,000
HALEY ST
FairOver: EAST SIDE CANAL
SOUTH MONTEREY ST, Kern, CA
Built 1957 Load: 24.3 t ADT: 2,876
MOUNTAIN VIEW RD
FairOver: EAST SIDE CANAL
0.1 MI W OF VINELAND ROAD, Kern, CA
Built 1955 Load: 24.3 t ADT: 290
6TH AVE
FairOver: LAKESIDE DITCH
0.6 MI S OF LACY BLVD, Kings, CA
Built 1959 Load: 24.3 t ADT: 750
6TH AVE
FairOver: SETTLERS DITCH
0.9 MI N OF FLINT AVE, Kings, CA
Built 1954 Load: 24.3 t ADT: 1,628
6TH AVE
FairOver: PEOPLES DITCH
0.4 MI N OF DOVER AVE, Kings, CA
Built 1955 Load: 24.3 t ADT: 2,130
EXCELSIOR AVE
FairOver: KINGS RIVER TRIBUTARY
0.3 MI E OF 17TH AVE, Kings, CA
Built 1954 Load: 24.3 t ADT: 3,430
EXCELSIOR AVE
FairOver: WEST BRANCH KINGS RIVER
0.5 MI W OF 17TH AVE, Kings, CA
Built 1954 Load: 24.3 t ADT: 2,167
22ND AVE
FairOver: ISLAND CANAL
1.1 MI N OF GRANGEVILLE, Kings, CA
Built 1959 Load: 24.3 t ADT: 1,446
D ST
FairOver: LEMOORE CANAL
E LEMOORE, Kings, CA
Built 1950 Load: 24.3 t ADT: 2,344
6TH AVE
FairOver: HOMELAND CANAL
5.0 MI N KERN CO LINE, Kings, CA
Built 1965 Load: 24.3 t ADT: 500
KANSAS AVE
FairOver: CLARK DITCH
0.2 MI E OF 11TH AVE, Kings, CA
Built 1963 Load: 24.3 t ADT: 3,270
NEVADA AVE
FairOver: WST BRNCH LAKELAND CANAL
JUST RIGHT OF SR 43, Kings, CA
Built 1965 Load: 24.3 t ADT: 650
7TH AVE
FairOver: PEOPLES DITCH
0.8 MI N EXCELSIOR AVE, Kings, CA
Built 1963 Load: 24.3 t ADT: 350
GRANGEVILLE BLVD
FairOver: LAKESIDE DITCH
0.3 MI E/O 5TH AVE, Kings, CA
Built 1950 Load: 24.3 t ADT: 3,375
18TH AVE
FairOver: TULARE LAKE CANAL
JUST SO MANTECA AVE, Kings, CA
Built 1950 Load: 24.3 t ADT: 20
DENVER AVE
FairOver: SETTLERS DITCH
0.5 MI E/O 6TH AVE, Kings, CA
Built 1955 Load: 24.3 t ADT: 1,000
DOVER AVE
FairOver: LAST CHANCE DITCH
0.2 MI E OF 12TH AVE, Kings, CA
Built 1960 Load: 24.3 t ADT: 500
11TH AVE
FairOver: PEOPLES DITCH
0.35 MI S OF ELDER AVE, Kings, CA
Built 1960 Load: 24.3 t ADT: 3,377
MADISON AVE
FairOver: TULARE LAKE CANAL
0.3 MI E 20TH AVE, Kings, CA
Built 1965 Load: 24.3 t ADT: 250
MORGAN VALLEY RD
FairOver: COPSEY CREEK
1.0 MI E SR 29 & SR 53, Lake, CA
Built 1965 Load: 24.3 t ADT: 1,800
E HGHLND SPRING RD
FairOver: HIGHLAND CREEK
0.1 MI S HIGHLAND SPGS RD, Lake, CA
Built 1960 Load: 24.3 t ADT: 618
MARTIN ST
FairOver: FORBES CREEK
0.6 MI EAST OF SR 29, Lake, CA
Built 1970 Load: 24.3 t ADT: 1,046
KONOCTI
FairOver: SCHINDLER CREEK
0.05 MI W KEYES BLVD, Lake, CA
Built 1965 Load: 24.3 t ADT: 320
KONOCTI VIEW
FairOver: CLEAR LAKE OAKS CHANNEL
0.05 MI W LAKELAND ST, Lake, CA
Built 1965 Load: 24.3 t ADT: 150
BLUE HERON COURT
FairOver: CLEAR LAKE OAKS CHANNEL
0.05 MI SE ISLAND CIRCLE, Lake, CA
Built 1965 Load: 24.3 t ADT: 150
BLUE HERON COURT
FairOver: CLEAR LAKE OAKS CHANNEL
0.05 MI NW ISLAND CIRCLE, Lake, CA
Built 1965 Load: 24.3 t ADT: 60
C.R. 353
FairOver: BROWNELL CREEK
0.2 MI N/E US HWY 395, Lassen, CA
Built 1923 Load: 24.3 t ADT: 200
C.R. 353
FairOver: MCCLAY CREEK
1.3 MI NE OF US HWY 395, Lassen, CA
Built 1923 Load: 24.3 t ADT: 200
C.R. 353
FairOver: PARKER CREEK
0.5 MI N/W CR 301, Lassen, CA
Built 1923 Load: 24.3 t ADT: 50
JOHNSTONVILLE RD
FairOver: LASSEN CREEK
0.1 MI NW OF US 395, Lassen, CA
Built 1924 Load: 24.3 t ADT: 600
JOHNSTONVILLE RD
FairOver: SAND SLOUGH
0.2 MI N OF US 395, Lassen, CA
Built 1922 Load: 24.3 t ADT: 200
C.R. 301
FairOver: BAXTER CREEK
1.8 MI NE OF SH 395, Lassen, CA
Built 1970 Load: 24.3 t ADT: 1,200
SURPRISE VALLEY RD
FairOver: BARE CREEK
1.8 MI S OF MODOC C.L., Lassen, CA
Built 1965 Load: 24.3 t ADT: 400
SR 164 (ROSEMEAD)
FairOver: RIO HONDO
07-LA-164-4.91-EMTE, Los Angeles, CA
Built 1937 Load: 24.3 t ADT: 44,100
STATE ROUTE 118
FairOver: WOODLEY AVE
07-LA-118-R9.04-LA, Los Angeles, CA
Built 1976 Load: 24.3 t ADT: 254,000
E91-SANTA FE OFFRP
FairOver: COMPTON CREEK, RR TRACKS
07-LA-091-R10.28-COM, Los Angeles, CA
Built 1974 Load: 24.3 t ADT: 6,200
Showing 10,151-10,200 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.