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
CECILVILLE ROAD
FairOver: INDIAN CREEK
10.7 MI N/O EDDY GULCH RD, Siskiyou, CA
Built 1940 Load: 30.5 t ADT: 100
INTERSTATE 80 WB
FairOver: LYNCH ROAD
04-SOL-080-R9.65, Solano, CA
Built 1969 Load: 30.5 t ADT: 57,000
AUTO MALL PKWY
FairOver: LEDGEWOOD CREEK
ADJACENT TO S. OF I-80, Solano, CA
Built 1961 Load: 30.5 t ADT: 5,350
STATE ROUTE 12
FairOver: BRUSH CREEK
04-SON-012-18.37-SRO, Sonoma, CA
Built 1962 Load: 30.5 t ADT: 41,250
STATE ROUTE 12 EB
FairOver: NWP RR
04-SON-012-R15.56-SRO, Sonoma, CA
Built 1964 Load: 30.5 t ADT: 36,500
STARRETT HILL DR
FairOver: HILLSIDE
0.2 MI E INTX MOSCOW RD, Sonoma, CA
Built 1973 Load: 30.5 t ADT: 200
OLD MONTE RIO ROAD
FairOver: HILLSIDE
AT SANTA ROSA AVENUE, Sonoma, CA
Built 1960 Load: 30.5 t ADT: 100
FITCH MOUNTAIN RD
FairOver: HILLSIDE
1.5 MI E JCT UNV ST HELDG, Sonoma, CA
Built 1955 Load: 30.5 t ADT: 525
MONTE RIO AVE
FairOver: HILLSIDE
0.2 MI NE BOHEMIAN AVE, Sonoma, CA
Built 1983 Load: 30.5 t ADT: 100
ROGERS ROAD
FairOver: DEL PUERTO CREEK
0.5 MI N ZACHARIAS RD, Stanislaus, CA
Built 1911 Load: 30.5 t ADT: 1,823
BARHAM AVE
FairOver: BRANNIN CREEK
0.3 MI S LIBERAL AVE, Tehama, CA
Built 1966 Load: 30.5 t ADT: 5,757
REEDS CREEK ROAD
FairOver: N FORK REEDS CREEK
2.2 MI E/O PETTYJOHN RD, Tehama, CA
Built 1951 Load: 30.5 t ADT: 1,660
STATE ROUTE 3
FairOver: SALT CREEK
02-TRI-003-L3.84, Trinity, CA
Built 1948 Load: 30.5 t ADT: 495
SOUTH FORK ROAD
FairOver: SOUTH FORK TRINITY RIVER
0.5 MI W HYAMPOM RD, Trinity, CA
Built 1970 Load: 30.5 t ADT: 160
STATE ROUTE 198
FairOver: DEEP CREEK
06-TUL-198-R16.00, Tulare, CA
Built 1951 Load: 30.5 t ADT: 20,000
M348 S. FORK DR
FairOver: S FORK KAWEAH RIVER
1.42 MI SE OF M347, Tulare, CA
Built 1934 Load: 30.5 t ADT: 575
RD 156
FairOver: DEEP CREEK
1.4 MI S OF AVE 280, Tulare, CA
Built 1959 Load: 30.5 t ADT: 425
US HIGHWAY 101 NB
FairOver: SAN MIGUELITO RD
07-VEN-101-R35.35, Ventura, CA
Built 1973 Load: 30.5 t ADT: 40,500
MIDWAY ROAD
FairOver: UP RR & AMTRAK
1.2MI NO DAYTON-DURHAM HY, Butte, CA
Built 1975 Load: 30.8 t ADT: 5,636
STATE ROUTE 16
FairOver: BEAR CREEK
03-COL-016-R4.34, Colusa, CA
Built 1964 Load: 30.8 t ADT: 630
RED WILLOW RD
FairOver: WEST BRANCH ALAMO CREEK
0.1 MI SE DOUGHERTY RD, Contra Costa, CA
Built 1990 Load: 30.8 t ADT: 400
U.S. HIGHWAY 50
FairOver: PYRAMID CREEK
03-ED-050-59.77, El Dorado, CA
Built 1980 Load: 30.8 t ADT: 13,100
E JENSEN AVE EB
FairOver: FOWLER SWITCH CANAL
0.3 MI W OF BETHEL AVE, Fresno, CA
Built 1925 Load: 30.8 t ADT: 13,400
N PIEDRA RD
FairOver: FRIANT-KERN CANAL
2.5 MI NE OF SR 180, Fresno, CA
Built 1953 Load: 30.8 t ADT: 1,700
S EL DORADO AVE
FairOver: COALINGA CANAL
1.8 MI NORTH OF JAYNE AVE, Fresno, CA
Built 1972 Load: 30.8 t ADT: 800
CEDAR GROVE ROAD (
FairOver: SOUTH FORK KINGS RIVER
KINGS CANYON HWY. MP 32.3, Fresno, CA
Built 1953 Load: 30.8 t ADT: 278
STATE ROUTE 96
FairOver: HILLSIDE
01-HUM-096-16.82, Humboldt, CA
Built 1964 Load: 30.8 t ADT: 1,505
CAMERON RD
FairOver: CACHE CREEK
1.8 MI W OF SR 58, Kern, CA
Built 1972 Load: 30.8 t ADT: 250
12 3/4 AVE
FairOver: KINGS RIVER
KINGS & FRESNO CO LINE, Kings, CA
Built 1954 Load: 30.8 t ADT: 3,183
WITTER SPRINGS RD
FairOver: COOPER CREEK
WITTER SPR RD W/O EAST RD, Lake, CA
Built 1935 Load: 30.8 t ADT: 123
STATE ROUTE 70
FairOver: UP RR
02-LAS-070-1.16, Lassen, CA
Built 1953 Load: 30.8 t ADT: 4,200
CR213 (LEAVITT LN)
FairOver: SUSAN RIVER OVERFLOW
0.65 MI N OF US 395, Lassen, CA
Built 1973 Load: 30.8 t ADT: 100
U.S. HIGHWAY 101
FairOver: RESEDA BLVD
07-LA-101-21.25-LA, Los Angeles, CA
Built 1959 Load: 30.8 t ADT: 296,000
INTERSTATE 405
FairOver: TORRANCE LATERAL CHNL
07-LA-405-11.39-CRSN, Los Angeles, CA
Built 1961 Load: 30.8 t ADT: 265,000
STATE ROUTE 134 WB
FairOver: ARBOR DELL HILLMONT UC
07-LA-134-R10.97-LA, Los Angeles, CA
Built 1971 Load: 30.8 t ADT: 223,000
STATE ROUTE 91
FairOver: UP RR
07-LA-091-R13.35-LBCH, Los Angeles, CA
Built 1970 Load: 30.8 t ADT: 270,000
U.S. HIGHWAY 101
FairOver: ARROYO DE SAN JOSE
04-MRN-101-18.15, Marin, CA
Built 1928 Load: 30.8 t ADT: 139,000
BUNKER ROAD
FairOver: RODEO LAGOON
From US Route 101 take Sa, Marin, CA
Built 1983 Load: 30.8 t ADT: 600
SENTINEL BRIDGE RO
FairOver: MERCED RIVER
13.2 miles east from El P, Mariposa, CA
Built 1994 Load: 30.8 t ADT: 3,416
CURRY STABLES ROAD
FairOver: MERCED RIVER
14.2 miles E from El Port, Mariposa, CA
Built 1928 Load: 30.8 t ADT: 100
TIOGA ROAD
FairOver: YOSEMITE CREEK
7.0 miles east of El Port, Mariposa, CA
Built 1960 Load: 30.8 t ADT: 2,041
FORESTA ROAD
FairOver: MERCED RIVER
MP 48.2 on Hwy "140", the, Mariposa, CA
Built 1960 Load: 30.8 t ADT: 2,080
STATE ROUTE 162
FairOver: SHORT CREEK
01-MEN-162-34.03, Mendocino, CA
Built 1962 Load: 30.8 t ADT: 2,200
STATE ROUTE 1
FairOver: GUALALA RIVER
01-MEN-001-0.01, Mendocino, CA
Built 1958 Load: 30.8 t ADT: 4,200
U.S. HIGHWAY 101
FairOver: MARION LANE
01-MEN-101-R88.80, Mendocino, CA
Built 1970 Load: 30.8 t ADT: 6,100
SR 33 (JENSEN AVE)
FairOver: CALIFORNIA AQUEDUCT
10-MER-033-R14.41, Merced, CA
Built 1965 Load: 30.8 t ADT: 8,200
ORCHARD ROAD
FairOver: GARZAS CREEK
0.7 MI S OF S.H. 140, Merced, CA
Built 1969 Load: 30.8 t ADT: 745
LEOTA STREET
FairOver: SAN LUIS WASTEWAY
0.1 MI N HENRY MILLER AVE, Merced, CA
Built 1968 Load: 30.8 t ADT: 66
MILPITAS ROAD
FairOver: N FK SAN ANTONIO CREEK
15 MI NW MISSION ROAD, Monterey, CA
Built 1945 Load: 30.8 t ADT: 20
SKELLENGER LANE
FairOver: CONN CREEK
0.7 MI W SILVERADO TRAIL, Napa, CA
Built 1930 Load: 30.8 t ADT: 306
Showing 11,851-11,900 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.