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 80
FairOver: REFINERY ACCESS RD
04-CC-080-12.13, Contra Costa, CA
Built 1958 Load: 44.4 t ADT: 115,000
N MCCALL AVE
FairOver: GOULD CANAL
1.0 MI SOUTH OF DAKOTA AV, Fresno, CA
Built 1925 Load: 44.4 t ADT: 2,000
BORDER CROSSING (C
FairOver: ALL AMERICAN CANAL
1.9 MILES SOUTH OF CA-98, Imperial, CA
Built 1996 Load: 44.4 t ADT: 16,700
U.S. HIGHWAY 395
FairOver: WILLOW RANCH CREEK
02-LAS-395-R24.69, Lassen, CA
Built 1969 Load: 44.4 t ADT: 5,500
INTERSTATE 405
FairOver: SATICOY STREET
07-LA-405-42.87-LA, Los Angeles, CA
Built 1963 Load: 44.4 t ADT: 216,000
ROUTE 170
FairOver: CHANDLER BLVD UC
07-LA-170-R15.63-LA, Los Angeles, CA
Built 1966 Load: 44.4 t ADT: 209,000
SAN GABRIEL BLVD
FairOver: RIO HONDO
0.2MI W/O ROSEMEAD BLVD, Los Angeles, CA
Built 1982 Load: 44.4 t ADT: 25,203
DEL MAR BLVD
FairOver: EATON WASH
0.5MI E/O SN GABRIEL BLVD, Los Angeles, CA
Built 1926 Load: 44.4 t ADT: 11,568
DEL AMO BLVD
FairOver: COYOTE CR
0.8MI E/O BLOOMFIELD AVE, Los Angeles, CA
Built 1965 Load: 44.4 t ADT: 20,793
WASHINGTON BLVD
FairOver: BALLONA CRK
200FT W/O LA CIENEGA BLVD, Los Angeles, CA
Built 1938 Load: 44.4 t ADT: 22,688
FOOTHILL BLVD
FairOver: SO BRCH BIG TUJUNGA WASH
1.4 MI E/O WHEATLAND AVE, Los Angeles, CA
Built 1975 Load: 44.4 t ADT: 9,697
CARMEL VALLEY RD
FairOver: TULARCITOS CREEK
23.9 MI NW ARROYO SECO RD, Monterey, CA
Built 1976 Load: 44.4 t ADT: 930
INTERSTATE 10
FairOver: SALVIA WASH
08-RIV-010-36.49, Riverside, CA
Built 1955 Load: 44.4 t ADT: 94,000
FERNALD PT LN
FairOver: SAN YSIDRO CREEK
S OF US 101 AT MONTECITO, Santa Barbara, CA
Built 1959 Load: 44.4 t ADT: 400
SERPA LANE
FairOver: KIDDER CREEK
0.45 MI E OF SR 3, Siskiyou, CA
Built 1967 Load: 44.4 t ADT: 164
US HIGHWAY 101
FairOver: MARK WEST CREEK
04-SON-101-26.10, Sonoma, CA
Built 1962 Load: 44.4 t ADT: 62,000
ST HELENA ROAD
FairOver: HILLSIDE
4.3 MI E/O CALISTOGA RD, Sonoma, CA
Built 2007 Load: 44.4 t ADT: 2,100
INTERSTATE 580
FairOver: ARROYO LAS POSITAS
04-ALA-580-11.72, Alameda, CA
Built 1972 Load: 44.7 t ADT: 197,000
UPPER BEAR RIV RD
FairOver: BEAR RIVER
8.0 MI S OF MATTOLE RD, Humboldt, CA
Built 1968 Load: 44.7 t ADT: 75
REDWOOD DR
FairOver: BEAR GULCH
0.2 MI N SR 101 AT GRBRVL, Humboldt, CA
Built 2004 Load: 44.7 t ADT: 5,870
AVE S
FairOver: CALIFORNIA AQUEDUCT
0.9MI W/O SR-14 FWY, Los Angeles, CA
Built 1968 Load: 44.7 t ADT: 918
GAVINA AVE
FairOver: PACOIMA CANYON WASH
0.1 M E/O TIBBETTS ST, Los Angeles, CA
Built 1990 Load: 44.7 t ADT: 7,500
U.S. HIGHWAY 395
FairOver: SOUTH FORK PIT RIVER
02-MOD-395-R16.52, Modoc, CA
Built 1971 Load: 44.7 t ADT: 2,400
HOLMES AVENUE
FairOver: DAY CREEK CHANNEL
0.7 MI. W/O ETIWANDA AVE., Riverside, CA
Built 1984 Load: 44.7 t ADT: 4,536
INTERSTATE 15 SB
FairOver: EAST ETIWANDA CREEK
08-SBD-015-7.56-RCUC, San Bernardino, CA
Built 1976 Load: 44.7 t ADT: 80,000
SAN JOSE STREET
FairOver: SAN ANTONIO CREEK CHAN
0.3 MI E LA CO LINE, San Bernardino, CA
Built 1958 Load: 44.7 t ADT: 5,000
CUMMINGS ROAD
FairOver: PALETA CREEK
ADJACENT TO GATE #9, San Diego, CA
Built 1969 Load: 44.7 t ADT: 4,000
HERITAGE ROAD
FairOver: OTAY RIVER
200 FT S/O MAIN ST., San Diego, CA
Built 1993 Load: 44.7 t ADT: 10,088
INTERSTATE RTE 5 S
FairOver: HOSPITAL CREEK
10-SJ-005-1.10, San Joaquin, CA
Built 1971 Load: 44.7 t ADT: 11,400
INTERSTATE RTE 5 N
FairOver: HOSPITAL CREEK
10-SJ-005-1.10, San Joaquin, CA
Built 1971 Load: 44.7 t ADT: 11,400
FINE RD
FairOver: CHANNEL A
0.01 MI N FLOOD RD, San Joaquin, CA
Built 1972 Load: 44.7 t ADT: 801
MILES AVE
FairOver: LOS GATOS CREEK
NEAR EDELEN AVE, Santa Clara, CA
Built 1956 Load: 44.7 t ADT: 650
OLD ALTURAS RD
FairOver: CHURN CREEK
1.5 MI W OLD OREGON TRAIL, Shasta, CA
Built 1964 Load: 44.7 t ADT: 11,483
LAS POSAS RD
FairOver: REVOLON SLOUGH
1.15 MI N STATE ROUTE 1, Ventura, CA
Built 1962 Load: 44.7 t ADT: 5,400
CHANNEL ISLANDS BL
FairOver: EDISON CANAL
0.2 MI E OF HARBOR BLVD, Ventura, CA
Built 1970 Load: 44.7 t ADT: 24,750
WOODRUFF LANE
FairOver: JACK SLOUGH
0.5 MI E JACK SLOUGH RD, Yuba, CA
Built 1966 Load: 44.7 t ADT: 1,030
MONTGOMERY ST
FairOver: UP RR & BNSF RY
E OF WASHINGTON AVE, Butte, CA
Built 1939 Load: 45.0 t ADT: 7,491
BULL HILL/SKYWY RD
FairOver: BUTTE CREEK
0.1 MI S JCT HUMBOLDT RD, Butte, CA
Built 1979 Load: 45.0 t ADT: 210
STATE ROUTE 86 NB
FairOver: DEEP WASH
11-IMP-086-R35.16, Imperial, CA
Built 1976 Load: 45.0 t ADT: 7,350
STATE ROUTE 99 NB
FairOver: UP RR
06-KER-099-R43.60R, Kern, CA
Built 1958 Load: 45.0 t ADT: 30,500
STATE ROUTE 62
FairOver: 29 PALMS FLOOD CHANNEL
08-SBD-062-30.99-TNP, San Bernardino, CA
Built 1970 Load: 45.0 t ADT: 16,400
RIVERSIDE DR
FairOver: CYPRESS CHANNEL
0.7 MI W EUCLID AVE, San Bernardino, CA
Built 1973 Load: 45.0 t ADT: 18,390
PARADISE RD
FairOver: LEWIS CREEK
4.5 MI EAST OF SR 154, Santa Barbara, CA
Built 1970 Load: 45.0 t ADT: 726
PIEDMONT ROAD
FairOver: PENITENCIA CREEK
NEAR PENITENCIA CREEK RD, Santa Clara, CA
Built 1975 Load: 45.0 t ADT: 8,893
PIEDMONT RD
FairOver: PENITENCIA CREEK
NEAR PENITENCIA CREEK RD, Santa Clara, CA
Built 1975 Load: 45.0 t ADT: 8,893
MAIN ST
FairOver: DUTCH BILL CREEK
MONTE RIO-0.26 M FM SR116, Sonoma, CA
Built 1953 Load: 45.0 t ADT: 838
STARRETT HILL DR
FairOver: HILLSIDE
0.4 MI E INTX MOSCOW RD, Sonoma, CA
Built 1986 Load: 45.0 t ADT: 200
GEYSERS ROAD
FairOver: HILLSIDE
1.1 MI E/O BIG SULPHUR CR, Sonoma, CA
Built 2006 Load: 45.0 t ADT: 150
MERIDIAN RD
FairOver: ZIMMERSHED CREEK
0.8 MI S LASSEN RD, Tehama, CA
Built 1930 Load: 45.0 t ADT: 100
EIGHTH AVE
FairOver: SOUTH FORK JEWETT CREEK
0.2 MI N/O CORNING RD, Tehama, CA
Built 1937 Load: 45.0 t ADT: 200
Showing 16,251-16,300 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.