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
TICO RD
GoodOver: DRAINAGE DITCH
0.1 MI N OF S.R. 150, Ventura, CA
Built 1965 Load: 24.3 t ADT: 3,500
BEACHMONT ST
GoodOver: ARUNDELL BARRANCA
0.4 MI W HARBOR BLVD, Ventura, CA
Built 1968 Load: 24.3 t ADT: 1,012
YUCCA ST
GoodOver: J STREET DRAIN
0.5 MI E. OF VENTURA RD, Ventura, CA
Built 1957 Load: 24.3 t ADT: 4,930
TEAKWOOD ST
GoodOver: J STREET DRAIN
0.5 MI E. OF VENTURA RD., Ventura, CA
Built 1950 Load: 24.3 t ADT: 2,000
REDWOOD ST
GoodOver: J STREET DRAIN
0.5 MI E OF VENTURA RD, Ventura, CA
Built 1950 Load: 24.3 t ADT: 1,000
TERRACE AVE
GoodOver: RICE ROAD DRAIN I
N OF PLEASANT VALLEY RD, Ventura, CA
Built 1965 Load: 24.3 t ADT: 1,500
ROSE AVE
GoodOver: RICE ROAD DRAIN I
N OF PLEASANT VALLEY RD, Ventura, CA
Built 1965 Load: 24.3 t ADT: 7,000
SEQUOIA AVE
GoodOver: TAPO CANYON CREEK
0.2 MI N COCHRAN ST, Ventura, CA
Built 1965 Load: 24.3 t ADT: 10,000
W HILLCREST DR
GoodOver: S BRANCH ARROYO CONEJO
0.3 MI E OF VENTU PARK RD, Ventura, CA
Built 1966 Load: 24.3 t ADT: 14,925
HILL ST
GoodOver: OXNARD WEST DRAIN
50 FT W OF VENTURA RD, Ventura, CA
Built 1950 Load: 24.3 t ADT: 2,740
ROYAL AVENUE
GoodOver: BUS CANYON DRAIN
0.7 MI E MADERA RD, Ventura, CA
Built 1961 Load: 24.3 t ADT: 27,000
COUNTY ROAD 99W
GoodOver: BRETONA CREEK
03-YOL-005-R20.75, Yolo, CA
Built 1920 Load: 24.3 t ADT: 22,400
COUNTY ROAD 99W
GoodOver: OVERFLOW DITCH
0.53 MI SE OF CR 4, Yolo, CA
Built 1920 Load: 24.3 t ADT: 1,256
COUNTY ROAD 99W
GoodOver: SLOUGH S7
0.37 MI SE OF CR 96, Yolo, CA
Built 1921 Load: 24.3 t ADT: 1,500
C.R. 20A
GoodOver: WINTERS CANAL
0.32 MI E OF C.R. 85B, Yolo, CA
Built 1939 Load: 24.3 t ADT: 374
COUNTY ROAD 94
GoodOver: WILLOW SPRING CREEK
0.01 MI SOUTH OF CR 13, Yolo, CA
Built 1970 Load: 24.3 t ADT: 700
STATE ROUTE 70
GoodOver: FEATHER RIVER BLVD
03-YUB-070-13.01, Yuba, CA
Built 1956 Load: 24.3 t ADT: 37,500
FOURTEENTH ST
GoodOver: ELLIS LAKE
BETWEEN C & D STREETS, Yuba, CA
Built 1958 Load: 24.3 t ADT: 16,500
MISSION BLVD
GoodOver: WEST CUCAMONGA WASH
0.6 MI W OF VINEYARD, San Bernardino, CA
Built 1914 Load: 24.5 t ADT: 30,172
Shasta Dam Blvd
GoodOver: Shasta Dam Spillway
12 MI NW OF REDDING, CA, Shasta, CA
Built 1943 Load: 24.5 t ADT: 100
US HIGHWAY 101 NB
GoodOver: EUREKA SLOUGH
01-HUM-101-79.78-EUR, Humboldt, CA
Built 1956 Load: 24.6 t ADT: 17,000
U.S. HIGHWAY 101
GoodOver: FINCH CREEK ROAD
01-HUM-101-63.10, Humboldt, CA
Built 1958 Load: 24.6 t ADT: 21,500
U.S. HIGHWAY 101
GoodOver: FINCH CREEK ROAD
01-HUM-101-63.10, Humboldt, CA
Built 1958 Load: 24.6 t ADT: 21,500
STATE ROUTE 111
GoodOver: NILAND CREEK
11-IMP-111-45.37, Imperial, CA
Built 1950 Load: 24.6 t ADT: 3,600
STATE ROUTE 111
GoodOver: PACIFIC WASH
11-IMP-111-54.11, Imperial, CA
Built 1950 Load: 24.6 t ADT: 3,600
STATE ROUTE 115
GoodOver: ALAMO RIVER
11-IMP-115-10.09, Imperial, CA
Built 1959 Load: 24.6 t ADT: 5,400
STATE ROUTE 198 WB
GoodOver: SJVR SPUR & 21ST AVE
06-KIN-198-7.17, Kings, CA
Built 1963 Load: 24.6 t ADT: 9,000
STATE ROUTE 198 EB
GoodOver: SJVR SPUR & 21ST AVE
06-KIN-198-7.17, Kings, CA
Built 1963 Load: 24.6 t ADT: 9,000
STATE ROUTE 43
GoodOver: KINGS RIVER
06-KIN-043-26.76, Kings, CA
Built 1951 Load: 24.6 t ADT: 10,200
STATE ROUTE 14
GoodOver: CROWN VALLLEY RD
07-LA-014-R48.61, Los Angeles, CA
Built 1965 Load: 24.6 t ADT: 49,000
STATE ROUTE 14
GoodOver: CROWN VALLLEY RD
07-LA-014-R48.61, Los Angeles, CA
Built 1965 Load: 24.6 t ADT: 49,000
INTERSTATE 605
GoodOver: BNSF RY & RIVERA RD
07-LA-605-R11.39-SFSP, Los Angeles, CA
Built 1965 Load: 24.6 t ADT: 264,000
BONNIE COVE AVE
GoodOver: SAN DIMAS WASH
1.0MI E/O GRAND AVE, Los Angeles, CA
Built 1960 Load: 24.6 t ADT: 4,152
STATE ROUTE 20
GoodOver: BAECHTEL CREEK
01-MEN-020-33.64-WLTS, Mendocino, CA
Built 1937 Load: 24.6 t ADT: 18,350
STATE ROUTE 1
GoodOver: NAVARRO RIVER
01-MEN-001-40.18, Mendocino, CA
Built 1949 Load: 24.6 t ADT: 1,100
EAST YOSEMITE AVE
GoodOver: WASTEWAY-FAIRFIELD CANAL
0.9 MI W ARBOLEDA DR, Merced, CA
Built 1960 Load: 24.6 t ADT: 2,569
U.S. HIGHWAY 395
GoodOver: RICKEY DITCH OVERFLOW
09-MNO-395-76.89, Mono, CA
Built 1965 Load: 24.6 t ADT: 6,950
STATE ROUTE 1
GoodOver: MILL CREEK
05-MON-001-18.46, Monterey, CA
Built 1934 Load: 24.6 t ADT: 2,000
E LAS PALMAS DR
GoodOver: UP RR
0.3 MI E/O HARBOR BLVD, Orange, CA
Built 1991 Load: 24.6 t ADT: 2,700
ROAD 26N70
GoodOver: DIXIE CREEK
DIXIE CREEK, Plumas, CA
Built 2002 Load: 24.6 t ADT: 150
NEW HOPE RD
GoodOver: BEAR SLOUGH
2 MI NE SAN JOAQN CO LINE, Sacramento, CA
Built 1947 Load: 24.6 t ADT: 1,785
ROUTE 40 W BOUND.
GoodOver: WONSAN DITCH
08-SBD-040-R3.81, San Bernardino, CA
Built 1964 Load: 24.6 t ADT: 9,850
STATE ROUTE 210 WB
GoodOver: EAST TWIN CREEK CHANNEL
08-SBD-210-R24.76-SBD, San Bernardino, CA
Built 1968 Load: 24.6 t ADT: 54,500
STATE ROUTE 79
GoodOver: CANADA VERDE CREEK
11-SD-079-34.17, San Diego, CA
Built 1946 Load: 24.6 t ADT: 1,700
INTERSTATE 5 SB
GoodOver: UP RAILROAD & FARM ROADS
10-SJ-005-10.65, San Joaquin, CA
Built 1971 Load: 24.6 t ADT: 12,450
INTERSTATE 5 NB
GoodOver: UP RAILROAD & FARM ROADS
10-SJ-005-10.65, San Joaquin, CA
Built 1971 Load: 24.6 t ADT: 11,000
LONE TREE RD
GoodOver: LONE TREE CREEK
2.2 MI W OF CO LINE, San Joaquin, CA
Built 1922 Load: 24.6 t ADT: 1,022
UNIVERSITY AVE
GoodOver: SAN FRANCISQUITO CREEK
0.01 MI S WOODLAND AVE, San Mateo, CA
Built 1925 Load: 24.6 t ADT: 24,200
S85-S17 CONNECTOR
GoodOver: OKA ROAD
04-SCL-085-R10.60-LGTS, Santa Clara, CA
Built 1994 Load: 24.6 t ADT: 11,000
SANTA CLARA ST
GoodOver: GUADALUPE RIVER
0.1 MI EAST OF DELMAS AVE, Santa Clara, CA
Built 1924 Load: 24.6 t ADT: 20,350
Showing 18,851-18,900 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.