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
ELMO HIGHWAY
GoodOver: FRIANT-KERN CANAL
0.5 MI WEST OF ZACHARY AV, Kern, CA
Built 1949 Load: 16.2 t ADT: 540
21ST STREET
GoodOver: STINE CANAL
0.1 MI E OF OAK STREET, Kern, CA
Built 1937 Load: 16.2 t ADT: 4,139
24TH ST (OLD 178)
GoodOver: CARRIER CANAL
0.5 MI EAST SR 99, Kern, CA
Built 1930 Load: 16.2 t ADT: 52,000
HANFORD-ARMONA RD
GoodOver: LEMOORE CANAL
0.1 MI W 17TH AVE, Kings, CA
Built 1917 Load: 16.2 t ADT: 8,915
I10 & RAMPS
GoodOver: SHERIFF'S RANGE WASH
07-LA-010-21.41-MONP, Los Angeles, CA
Built 1974 Load: 16.2 t ADT: 203,000
BUSWAY, WB I-10
GoodOver: CITY TERRACE DRAIN
07-LA-010S-17.65-LA, Los Angeles, CA
Built 1942 Load: 16.2 t ADT: 30,500
LOS COYOTES DIAG
GoodOver: SDBI 133
20FT W/O CLARK AVE, Los Angeles, CA
Built 1949 Load: 16.2 t ADT: 28,620
ATLANTIC AVE
GoodOver: STORM DRN #130
0.3MI N/O DEL AMO BLVD, Los Angeles, CA
Built 1945 Load: 16.2 t ADT: 23,108
SAN FERNANDO RD
GoodOver: BEACON WASH
0.1 MI NW BRANFORD ST, Los Angeles, CA
Built 1927 Load: 16.2 t ADT: 20,000
HAWTHORNE BLVD
GoodOver: 116TH ST STORM DRN
AT 116TH ST, Los Angeles, CA
Built 1949 Load: 16.2 t ADT: 43,918
LTL TUJUNGA CYN RD
GoodOver: BUCK CYN
6.0MI N/O FOOTHILL BLVD, Los Angeles, CA
Built 1928 Load: 16.2 t ADT: 2,053
WEBB CYN RD
GoodOver: WEBB CYN CRK
0.2MI W/O TOWNE AVE, Los Angeles, CA
Built 1929 Load: 16.2 t ADT: 252
SAINT CLOUD RD
GoodOver: NATURAL WATERWAY-NO NAME
BTW NIMES RD/BEL AIR RD, Los Angeles, CA
Built 1923 Load: 16.2 t ADT: 260
HILLROSE ST
GoodOver: HAINES CANYON CHANNEL
100'W ORO VISTA AVE, Los Angeles, CA
Built 1936 Load: 16.2 t ADT: 3,858
ORO VISTA AVE
GoodOver: HAINES CANYON CHANNEL
0.2 MI N FOOTHILL BLVD, Los Angeles, CA
Built 1937 Load: 16.2 t ADT: 1,703
SATICOY STREET
GoodOver: PACOIMA WASH
0.3 MI W VAN NUYS BLVD, Los Angeles, CA
Built 1933 Load: 16.2 t ADT: 28,715
WENTWORTH ST
GoodOver: HAINES CANYON CHANNEL
0.2 MI W ORO VISTA AVE, Los Angeles, CA
Built 1936 Load: 16.2 t ADT: 2,252
APPERSON ST
GoodOver: HAINES CANYON CHANNEL
WOODWARD AVE, Los Angeles, CA
Built 1936 Load: 16.2 t ADT: 5,202
MARKRIDGE RD
GoodOver: SHIELDS CYN CHAN
1.0MI N/O FOOTHILL BLVD, Los Angeles, CA
Built 1937 Load: 16.2 t ADT: 703
GARFORD ST
GoodOver: STORM DRN #133
30FT W/O CLARK AVE, Los Angeles, CA
Built 1949 Load: 16.2 t ADT: 612
LORAIN RD
GoodOver: RUBIO WASH
0.1MI E/O DELMAR AVE, Los Angeles, CA
Built 1938 Load: 16.2 t ADT: 4,080
HUNTINGTON DR
GoodOver: RUBIO WASH
0.1MI E/O DEL MAR AVE, Los Angeles, CA
Built 1910 Load: 16.2 t ADT: 32,400
THOUSAND OAKS DR
GoodOver: HAINES CANYON CHANNEL
0.21 KM W PLAINVIEW AVE, Los Angeles, CA
Built 1937 Load: 16.2 t ADT: 525
PINE ST
GoodOver: RUBIO WASH
0.1MI S/O LAS TUNAS BLVD, Los Angeles, CA
Built 1935 Load: 16.2 t ADT: 5,100
CANADA BLVD N
GoodOver: VERDUGO WASH
0.1MI S/O VERDUGO RD, Los Angeles, CA
Built 1933 Load: 16.2 t ADT: 3,366
FOOTHILL BLVD
GoodOver: HAINES CANYON CHANNEL
0.5 MI W/O TUJUNGA CYN BL, Los Angeles, CA
Built 1935 Load: 16.2 t ADT: 27,443
FOOTHILL BLVD
GoodOver: HAINES CANYON CHANNEL
0.5 MI W GLEASON AVE, Los Angeles, CA
Built 1937 Load: 16.2 t ADT: 34,854
STATE ROUTE 152
GoodOver: ALAMO DRAIN
06-MAD-152-4.45, Madera, CA
Built 1936 Load: 16.2 t ADT: 16,500
PT REYES PETLMA RD
GoodOver: ARROYO SAUSAL(CHSE FACT)
0.5 MI S INTX NWTO BL, Marin, CA
Built 1933 Load: 16.2 t ADT: 2,590
SIR FRANCIS DRAKE
GoodOver: CORTE MADERA CREEK
3.0 MI E OF US HWY 101, Marin, CA
Built 1926 Load: 16.2 t ADT: 32,300
STATE ROUTE 140
GoodOver: BEAR CREEK
10-MPA-140-R31.29, Mariposa, CA
Built 1926 Load: 16.2 t ADT: 2,125
MAIN ST
GoodOver: EAST FORK RUSSIAN RIVER
0.5 MI E POWER HOUSE RD, Mendocino, CA
Built 1928 Load: 16.2 t ADT: 1,203
S BEAR CREEK DRIVE
GoodOver: LE GRAND CANAL
0.2 MI E PLAINSBURG ROAD, Merced, CA
Built 1925 Load: 16.2 t ADT: 218
COUNTY ROAD 215
GoodOver: HOWARDS GULCH
4.2 MI N OF SH 299, Modoc, CA
Built 1931 Load: 16.2 t ADT: 32
LARSON LANE
GoodOver: IRRIGATION CANAL
1.2 MI E RTE 395, PM 110, Mono, CA
Built 1952 Load: 16.2 t ADT: 104
SILVERADO TRAIL
GoodOver: NO NAME CREEK
2.0 MI N/W OAKNOLL AVE, Napa, CA
Built 1930 Load: 16.2 t ADT: 5,450
SANTIAGO CNYN ROAD
GoodOver: LIMESTONE CANYON
4.4 MI SE/O JAMBOREE RD., Orange, CA
Built 1931 Load: 16.2 t ADT: 8,000
BREA BLVD
GoodOver: BREA CREEK CHANNEL
100' E/O HARBOR BLVD, Orange, CA
Built 1936 Load: 16.2 t ADT: 15,000
MALVERN AVENUE
GoodOver: BREA CREEK CHANNEL
AT WOODS AVE, Orange, CA
Built 1939 Load: 16.2 t ADT: 30,500
BEACH STREET
GoodOver: LAGUNA CANYON CHANNEL
100 FT EAST OF BROAD WAY, Orange, CA
Built 1940 Load: 16.2 t ADT: 6,612
INTERSTATE 10
GoodOver: ITTA WASH
08-RIV-010-R15.79-BAN, Riverside, CA
Built 1935 Load: 16.2 t ADT: 120,000
SR 79 (WINCHESTER)
GoodOver: RANGE CREEK
08-RIV-079-R8.94, Riverside, CA
Built 1948 Load: 16.2 t ADT: 24,378
STATE ROUTE 62
GoodOver: MET WTR DSTRCT AQUEDUCT
08-RIV-062-82.05, Riverside, CA
Built 1935 Load: 16.2 t ADT: 1,428
VAN BUREN BLVD.
GoodOver: HOLE CREEK CHANNEL
AT ARLINGTON AVENUE, Riverside, CA
Built 1935 Load: 16.2 t ADT: 61,950
6TH AVENUE
GoodOver: "C" CANAL
1.0 MI. W/O RTE. 95 HWY., Riverside, CA
Built 1949 Load: 16.2 t ADT: 430
CHERRY AVENUE
GoodOver: MARSHALL CREEK
50' S/O BROOKSIDE AVENUE, Riverside, CA
Built 1940 Load: 16.2 t ADT: 2,217
STATE ROUTE 104
GoodOver: WINDMILL DRAW
03-SAC-104-5.44, Sacramento, CA
Built 1918 Load: 16.2 t ADT: 4,300
STATE ROUTE 104
GoodOver: ROLLING DRAW
03-SAC-104-5.18, Sacramento, CA
Built 1918 Load: 16.2 t ADT: 4,300
FRANKLIN BLVD
GoodOver: DRAINAGE DITCH
50 FT N OF LAMBERT RD, Sacramento, CA
Built 1925 Load: 16.2 t ADT: 2,346
FRANKLIN BLVD
GoodOver: DRAINAGE DITCH
1.8 MI N LAMBERT RD, Sacramento, CA
Built 1925 Load: 16.2 t ADT: 2,346
Showing 17,351-17,400 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.