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
INTERSTATE 5 SB
FairOver: SHASTA RIVER
02-SIS-005-R51.16, Siskiyou, CA
Built 1970 Load: 28.8 t ADT: 7,050
US HIGHWAY 101 SB
FairOver: THERESA DRIVE
04-SON-101-R49.05, Sonoma, CA
Built 1964 Load: 28.8 t ADT: 10,850
US HIGHWAY 101 NB
FairOver: THERESA DRIVE
04-SON-101-R49.05, Sonoma, CA
Built 1964 Load: 28.8 t ADT: 10,800
STATE ROUTE 4
FairOver: ROCK CREEK
10-STA-004-R1.68, Stanislaus, CA
Built 1977 Load: 28.8 t ADT: 4,900
GEER ROAD
FairOver: M.I.D. LATERAL #1
0.3 MI S OF SR 132, Stanislaus, CA
Built 1960 Load: 28.8 t ADT: 13,456
VALLEY HOME ROAD
FairOver: SSJID CANAL
0.1 MI NW CLEVELAND AVE, Stanislaus, CA
Built 1920 Load: 28.8 t ADT: 3,774
INTERSTATE 5 SB
FairOver: RED BANK CREEK
02-TEH-005-R23.61, Tehama, CA
Built 1965 Load: 28.8 t ADT: 14,000
INTERSTATE 5 NB
FairOver: RED BANK CREEK
02-TEH-005-R23.61, Tehama, CA
Built 1965 Load: 28.8 t ADT: 14,000
NORTH FORK DRIVE
FairOver: MIDDLE FORK KAWEAH RIVER
0.06 MI N OF SR 198, Tulare, CA
Built 1957 Load: 28.8 t ADT: 1,275
ROAD 192
FairOver: DEER CREEK
0.05 MI SOUTH OF AVE 96, Tulare, CA
Built 1939 Load: 28.8 t ADT: 510
M 239
FairOver: HICKMAN CREEK
3.5 MI N OF S.R. 190, Tulare, CA
Built 1949 Load: 28.8 t ADT: 500
M296
FairOver: KRAMER CREEK
0.1 MI E OF M239, Tulare, CA
Built 1948 Load: 28.8 t ADT: 280
INTERSTATE 5
FairOver: CACHE CREEK
03-YOL-005-R11.45, Yolo, CA
Built 1956 Load: 28.8 t ADT: 11,750
MARYSVILLE RD
FairOver: NORTH YUBA RIVER
6.2 MI EAST OF DOBBINS, Yuba, CA
Built 1970 Load: 28.8 t ADT: 670
TIOGA ROAD
FairOver: SOUTH FORK TUOLUMNE RIVE
7.0 miles east from El Po, Tuolumne, CA
Built 1937 Load: 29.0 t ADT: 2,041
NORTH EARL ROAD
FairOver: HUTCHINSON CREEK
0.7 MILES NORTH OF INTERS, Yuba, CA
Built 2010 Load: 29.0 t ADT: 50
Canal Service Road
FairOver: 807 Wash Overchute
6 mi north of Yuma, AZ, Imperial, CA
Built 1936 Load: 29.1 t ADT: 50
STATE PARK ROAD
FairOver: HOT SPRINGS CREEK
GROVER HOT SPRINGS ST PK, Alpine, CA
Built 1964 Load: 29.2 t ADT: 400
STATE ROUTE 49
FairOver: MOKELUMNE RIVER
10-AMA-049-0.01, Amador, CA
Built 1952 Load: 29.2 t ADT: 5,900
HUMBOLDT ROAD
FairOver: COLBY CREEK
10.5 MI E JCT S.R. 32, Butte, CA
Built 1979 Load: 29.2 t ADT: 401
SAN DOMINGO ROAD
FairOver: SAN DOMINGO CREEK
0.3 MI W SHEEP RANCH ROAD, Calaveras, CA
Built 1935 Load: 29.2 t ADT: 96
VISTA DEL LAGO DR
FairOver: COSGROVE CREEK
0.3 MI E OF S.R. 26, Calaveras, CA
Built 1968 Load: 29.2 t ADT: 3,090
MAXWELL-SITES RD
FairOver: STONE CORRAL CREEK
1.5 MI W MILL ORCHARD RD, Colusa, CA
Built 1957 Load: 29.2 t ADT: 462
PACHECO BLVD
FairOver: GRAYSON CREEK
0.2 MI N CENTER AVE, Contra Costa, CA
Built 1975 Load: 29.2 t ADT: 17,285
U.S. HIGHWAY 199
FairOver: MIDDLE FORK SMITH RIVER
01-DN-199-R19.22, Del Norte, CA
Built 1965 Load: 29.2 t ADT: 3,100
S JAMES ROAD
FairOver: JAMES BYPASS OVERFLOW
3.7 MI SOUTH OF S.H. 180, Fresno, CA
Built 1956 Load: 29.2 t ADT: 2,200
E AMERICAN AVE
FairOver: FRIANT-KERN CANAL
1.5 MI WEST OF SR 63, Fresno, CA
Built 1955 Load: 29.2 t ADT: 1,100
N VIAU AVE
FairOver: GOULD CANAL
0.1 MI NORTH OF MCKINLEY, Fresno, CA
Built 1925 Load: 29.2 t ADT: 200
WINDING ROAD
FairOver: BIG CREEK
10S02-4.278, Fresno, CA
Built 1954 Load: 29.2 t ADT: 50
U.S. HIGHWAY 101
FairOver: WESTHAVEN DRIVE
01-HUM-101-98.07, Humboldt, CA
Built 1960 Load: 29.2 t ADT: 8,800
US HIGHWAY 101 NB
FairOver: N CENTRAL AVE
01-HUM-101-R95.62, Humboldt, CA
Built 1964 Load: 29.2 t ADT: 16,500
FRESHWATER POOL RD
FairOver: FRESHWATER CREEK
0.03 MI S FRESHWATER RD, Humboldt, CA
Built 1972 Load: 29.2 t ADT: 100
HUFF RD
FairOver: WESTSIDE MAIN CANAL
0.5 MI N/O WORTHINGTON RD, Imperial, CA
Built 1950 Load: 29.2 t ADT: 743
STATE ROUTE 168
FairOver: OWENS RIVER
09-INY-168-R19.79, Inyo, CA
Built 1974 Load: 29.2 t ADT: 8,820
STATE ROUTE 198
FairOver: PHILLIPS STREET
06-KIN-198-R18.23-HAN, Kings, CA
Built 1967 Load: 29.2 t ADT: 20,500
STATE ROUTE 43
FairOver: KINGS RIVER
06-KIN-043-26.40, Kings, CA
Built 1954 Load: 29.2 t ADT: 10,200
STATE ROUTE 1
FairOver: DOMINGUEZ CHANNEL
07-LA-001-8.62-LA, Los Angeles, CA
Built 1948 Load: 29.2 t ADT: 26,500
STATE ROUTE 14
FairOver: AMARGOSA CREEK
07-LA-014-R70.27-LAN, Los Angeles, CA
Built 1968 Load: 29.2 t ADT: 21,000
NEW YORK DR WB
FairOver: EATON WASH
1.0MI N/O SIERRA MADRE BL, Los Angeles, CA
Built 1962 Load: 29.2 t ADT: 8,623
NEW YORK DR EB
FairOver: EATON WASH
1.0MI NW/O SIERRA MADRE, Los Angeles, CA
Built 1962 Load: 29.2 t ADT: 7,518
AVE T
FairOver: SPTCO
1.4MI E/O 87TH ST E, Los Angeles, CA
Built 1967 Load: 29.2 t ADT: 4,182
OVERLAND AVE
FairOver: BALLONA CRK
W/O JEFFERSON BLVD, Los Angeles, CA
Built 1938 Load: 29.2 t ADT: 34,545
THREE POINTS RD
FairOver: CALIFORNIA AQUEDUCT
1.0MI N/O LANCASTER RD, Los Angeles, CA
Built 1976 Load: 29.2 t ADT: 306
SUNSET PLAZA DR
FairOver: HILLSIDE
1.5 MI N OF SUNSET BLVD, Los Angeles, CA
Built 1956 Load: 29.2 t ADT: 1,489
AVENUE 7
FairOver: UP RR
EAST OF S.H. 99, Madera, CA
Built 1964 Load: 29.2 t ADT: 1,579
EUREKA HILL ROAD
FairOver: GARCIA RIVER
4.9 MI W OF RTE 1, Mendocino, CA
Built 1969 Load: 29.2 t ADT: 330
CHILDS AVE
FairOver: MILES CREEK
0.1 MI W OF IVETT RD, Merced, CA
Built 1982 Load: 29.2 t ADT: 1,231
FAHEY RD
FairOver: CCID MAIN CANAL
2.0 MI E SR 33, Merced, CA
Built 1960 Load: 29.2 t ADT: 95
IRR ALPINE RD. 58
FairOver: PARKER CREEK
0.3 MI N OF PARKER CR.RD., Modoc, CA
Built 1968 Load: 29.2 t ADT: 200
SAM JONES ROAD
FairOver: SAN ANTONIO RIVER
W TULE AIRSTRIP SEC 22/25, Monterey, CA
Built 1968 Load: 29.2 t ADT: 8
Showing 11,551-11,600 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.