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
OAK STREET
FairOver: BNSF RY & AMTRAK
0.1 MI N/O CALIFORNIA AVE, Kern, CA
Built 1939 Load: 24.0 t ADT: 24,433
BAKERSFLD-GLEN RD
FairOver: POSO CREEK
S OF ROUND MTN RD, Kern, CA
Built 1937 Load: 24.0 t ADT: 1,250
TUPMAN ROAD
FairOver: WESTSIDE CANAL
1.4 MI S OF STATION ROAD, Kern, CA
Built 1972 Load: 24.0 t ADT: 460
ELK MTN RD
FairOver: WEST FORK MIDDLE CREEK
8.74 MI N S.R. 20, Lake, CA
Built 1966 Load: 24.0 t ADT: 1,000
ROSE ANDERSON RD
FairOver: ANDERSON CREEK
ANDERSON SPRINGS RD, Lake, CA
Built 1945 Load: 24.0 t ADT: 104
INTERSTATE 110
FairOver: WILMINGTON CHANNEL
07-LA-110-4.77-LA, Los Angeles, CA
Built 1962 Load: 24.0 t ADT: 199,500
RAILROAD AVE.
FairOver: PLACERTA CREEK
.8 MILES N/O LYONS AVE., Los Angeles, CA
Built 1993 Load: 24.0 t ADT: 33,946
STATE ROUTE 1
FairOver: JUG HANDLE CREEK
01-MEN-001-56.74, Mendocino, CA
Built 1938 Load: 24.0 t ADT: 10,350
CANYON RD
FairOver: BERRY CREEK
1.4 MI E JCT WITH CR 306, Mendocino, CA
Built 1960 Load: 24.0 t ADT: 408
STATE ROUTE 59 NB
FairOver: BEAR CREEK
10-MER-059-15.23-MER, Merced, CA
Built 1940 Load: 24.0 t ADT: 14,000
STATE ROUTE 152 WB
FairOver: DELTA-MENDOTA CANAL
10-MER-152-15.09, Merced, CA
Built 1955 Load: 24.0 t ADT: 12,425
STATE ROUTE 152 EB
FairOver: DELTA-MENDOTA CANAL
10-MER-152-15.09, Merced, CA
Built 1950 Load: 24.0 t ADT: 12,425
STATE ROUTE 140
FairOver: DELTA-MENDOTA CANAL
10-MER-140-0.58, Merced, CA
Built 1951 Load: 24.0 t ADT: 1,175
BAXTER ROAD
FairOver: DUTCHMAN CREEK
1.2 MI N BUCHANAN HLW RD, Merced, CA
Built 1965 Load: 24.0 t ADT: 50
WOLFSEN ROAD
FairOver: SALT SLOUGH
0.8 MI N/E OF SR 165, Merced, CA
Built 1949 Load: 24.0 t ADT: 105
STATE ROUTE 1
FairOver: WILD CATTLE CREEK
05-MON-001-17.32, Monterey, CA
Built 1975 Load: 24.0 t ADT: 2,000
ELM AVE
FairOver: SALINAS RIVER
0.1 MI W METZ RD, Monterey, CA
Built 1968 Load: 24.0 t ADT: 1,900
STATE ROUTE 70
FairOver: SPANISH CREEK
02-PLU-070-42.45, Plumas, CA
Built 1964 Load: 24.0 t ADT: 6,700
ROCKY POINT ROAD
FairOver: BIG GRIZZLY CREEK
0.5 MI S SH 70, Plumas, CA
Built 1962 Load: 24.0 t ADT: 130
GOLD LAKE FOR HWY
FairOver: FRAZIER CREEK
1.1 MI SE/O SH 89, Plumas, CA
Built 1967 Load: 24.0 t ADT: 620
ROUTE 74
FairOver: SERVO CREEK
08-RIV-074-63.55, Riverside, CA
Built 1958 Load: 24.0 t ADT: 3,570
PEPPER AVE
FairOver: UP RR & AMTRAK
0.1 MI S RTE I-10, San Bernardino, CA
Built 1961 Load: 24.0 t ADT: 1,527
N 1ST AVENUE
FairOver: BNSF RY, UP RR, AMTRAK
0.2 MI N MAIN ST., San Bernardino, CA
Built 1930 Load: 24.0 t ADT: 14,000
DEL MAR ROAD
FairOver: NCTD RAILWAY
0.2 MILES WEST OF VANDEGR, San Diego, CA
Built 1947 Load: 24.0 t ADT: 10,675
INTERSTATE 5 SB
FairOver: ROTH ROAD
10-SJ-005-R19.58, San Joaquin, CA
Built 1971 Load: 24.0 t ADT: 84,500
CYPRESS MT DR
FairOver: BRANCH OF LAS TABLAS CRK
0.2 MI NW OF KLAU, San Luis Obispo, CA
Built 1950 Load: 24.0 t ADT: 25
VILLA CREEK RD
FairOver: VILLA CREEK
1.8 MI N SR 1, San Luis Obispo, CA
Built 1957 Load: 24.0 t ADT: 100
HUTTON ROAD
FairOver: NIPOMO CREEK
0.55 MI N CUYAMA LANE, San Luis Obispo, CA
Built 1957 Load: 24.0 t ADT: 6,688
PEDREGOSA STREET
FairOver: MISSION CREEK
SOUTH OF CASTILLO ST, Santa Barbara, CA
Built 1926 Load: 24.0 t ADT: 700
STATE ROUTE 85
FairOver: STEVENS CREEK
04-SCL-085-R20.02, Santa Clara, CA
Built 1965 Load: 24.0 t ADT: 115,000
BLOOMFIELD AVE.
FairOver: CARNADERO CREEK
BOLSA RD, Santa Clara, CA
Built 1930 Load: 24.0 t ADT: 1,970
STATE ROUTE 36
FairOver: BEEGUM CREEK
02-SHA-036-11.91, Shasta, CA
Built 1961 Load: 24.0 t ADT: 570
BIG BEND RD
FairOver: PIT RIVER
15.9 MI N OF S.R. 299, Shasta, CA
Built 1964 Load: 24.0 t ADT: 200
CASCADE BLVD
FairOver: MOODY CREEK
0.1 MI N SR 151, Shasta, CA
Built 1918 Load: 24.0 t ADT: 1,000
STATTON ROAD
FairOver: SALT CREEK
AT GILMAN RD, Shasta, CA
Built 1948 Load: 24.0 t ADT: 10
MOUNTAIN HOUSE RD
FairOver: NORTH FORK YUBA RIVER
0.15 MI SOUTH OF SR 49, Sierra, CA
Built 1936 Load: 24.0 t ADT: 100
KINLEY DR
FairOver: WEST SLOUGH
600' SW OF RTE 101, Sonoma, CA
Built 1959 Load: 24.0 t ADT: 200
MOSCOW ROAD
FairOver: HILLSIDE
1.85 MI NE OF SR 116, Sonoma, CA
Built 1960 Load: 24.0 t ADT: 700
BOHAN DILLON RD
FairOver: SOUTH FORK GUALALA RIVER
0.1 MI N FORT ROSS RD, Sonoma, CA
Built 1950 Load: 24.0 t ADT: 50
HAMILTON ROAD
FairOver: INGRAM CREEK
0.8 MI E/O MCCRACKEN RD, Stanislaus, CA
Built 1918 Load: 24.0 t ADT: 459
PIONEER AVENUE
FairOver: S SAN JOAQUIN MAIN CANAL
0.1 MI N PLEASANT VALY RD, Stanislaus, CA
Built 1928 Load: 24.0 t ADT: 445
STATE ROUTE 36
FairOver: SAMSON SLOUGH
02-TEH-036-42.24-RBL, Tehama, CA
Built 1947 Load: 24.0 t ADT: 19,500
INTERSTATE 5 SB
FairOver: MOORE CREEK
02-TEH-005-R1.17, Tehama, CA
Built 1966 Load: 24.0 t ADT: 12,300
INTERSTATE 5 NB
FairOver: MOORE CREEK
02-TEH-005-R1.17, Tehama, CA
Built 1966 Load: 24.0 t ADT: 12,300
DENNY ROAD
FairOver: TRINITY RIVER
0.2 MI E JCT SR 299, Trinity, CA
Built 1989 Load: 24.0 t ADT: 302
COUNTY RD D112
FairOver: NORTH BRANCH TULE RIVER
2.2 MI N AVE 160, Tulare, CA
Built 1917 Load: 24.0 t ADT: 1,100
AVE 416 (CR J40)
FairOver: FRIANT-KERN CANAL
2 MI EAST OF ROAD 144, Tulare, CA
Built 1948 Load: 24.0 t ADT: 700
SR 1 SB
FairOver: CALLEGUAS CREEK
07-VEN-001-9.87, Ventura, CA
Built 1934 Load: 24.0 t ADT: 4,300
S33-S101 CONNECTOR
FairOver: GARDEN ST & PARKING LOT
07-VEN-033-0.02-VEN, Ventura, CA
Built 1963 Load: 24.0 t ADT: 18,500
CASITAS VISTA RD
FairOver: VENTURA RIVER
0.1 MI WEST OF SR 33, Ventura, CA
Built 1939 Load: 24.0 t ADT: 2,600
Showing 9,951-10,000 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.