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
TWENTY-SIX MILE RD
FairOver: S SAN JOAQUIN MAIN CANAL
0.5 MI N DODDS RD, Stanislaus, CA
Built 1929 Load: 25.9 t ADT: 2,415
RD 114
FairOver: ALTA CANAL
AT AVE 432, Tulare, CA
Built 1934 Load: 25.9 t ADT: 100
R 182
FairOver: JOHNSON SLOUGH
0.3 MI N OF SH 198, Tulare, CA
Built 1956 Load: 25.9 t ADT: 400
WEST CAPITOL AVE
FairOver: SACRAMENTO RIVER (TOWER)
03-YOL-275-13.07-WSAC, Yolo, CA
Built 1934 Load: 25.9 t ADT: 12,000
GRIDLEY COLUSA RD
FairOver: BUTTE CREEK
AT COLUSA CO LINE, Butte, CA
Built 1958 Load: 26.2 t ADT: 749
NELSON AVENUE
FairOver: RUDY CREEK
BETWEEN 16TH ST & 12TH ST, Butte, CA
Built 1938 Load: 26.2 t ADT: 860
ROAD 25N17
FairOver: W. BRANCH FEATHER RIVER
NO DATA ENTERED, Butte, CA
Built 1966 Load: 26.2 t ADT: 50
SWISS RANCH RD
FairOver: JESUS MARIA CREEK
4.0 MI E RAILROAD FLAT RD, Calaveras, CA
Built 1952 Load: 26.2 t ADT: 43
E CAMP ROAD
FairOver: SALT CREEK
0.7 MI S OF S.R. 20, Colusa, CA
Built 1971 Load: 26.2 t ADT: 398
INTERSTATE 5 NB
FairOver: PHELPS AVE
06-FRE-005-8.81, Fresno, CA
Built 1967 Load: 26.2 t ADT: 15,000
JOSE BASIN RD
FairOver: BALD MILL CREEK
2.3 MI NE/O AUBERRY RD, Fresno, CA
Built 1947 Load: 26.2 t ADT: 200
E ADAMS AVE
FairOver: C & K CANAL
0.3 MI W OF ACADEMY AVE, Fresno, CA
Built 1925 Load: 26.2 t ADT: 2,300
S THOMPSON AVE
FairOver: FOWLER SWITCH CANAL
0.33 MI N/O ADAMS AVE, Fresno, CA
Built 1941 Load: 26.2 t ADT: 300
STATE ROUTE 162
FairOver: SACRAMENTO RIVER OVFL
03-GLE-162-79.96, Glenn, CA
Built 1940 Load: 26.2 t ADT: 2,400
US HIGHWAY 101 SB
FairOver: JORDAN CREEK
01-HUM-101-R46.19, Humboldt, CA
Built 1971 Load: 26.2 t ADT: 3,600
KNEELAND ROAD
FairOver: LAWRENCE CREEK
26.1 MI NE/O BRIDGEVILLE, Humboldt, CA
Built 1949 Load: 26.2 t ADT: 28
U.S. HIGHWAY 6
FairOver: LOWER MCNALLY CANAL
09-INY-006-6.46-BIS, Inyo, CA
Built 1949 Load: 26.2 t ADT: 4,550
MAZOURKA CYN RD
FairOver: LOS ANGELES AQUEDUCT
1.8 MI E OF RTE 395 JCT, Inyo, CA
Built 1919 Load: 26.2 t ADT: 204
ALFRED HARREL HWY
FairOver: FAIRFAX ROAD
1.2 MI NE OF PANORAMA DR, Kern, CA
Built 1959 Load: 26.2 t ADT: 3,595
ALFRED HARREL HWY
FairOver: FAIRFAX ROAD
1.2 MI NE OF PANORAMA DR, Kern, CA
Built 1959 Load: 26.2 t ADT: 3,595
ALFRED HARREL HWY
FairOver: GOODMANVILLE ACCESS RD
1.5 MI NE OF FAIRFAX RD, Kern, CA
Built 1959 Load: 26.2 t ADT: 3,595
ALFRED HARREL HWY
FairOver: GOODMANVILLE ACCESS RD
1.5 MI NE OF FAIRFAX RD, Kern, CA
Built 1959 Load: 26.2 t ADT: 3,595
MERCED AVE
FairOver: UP RR
WEST OF S.H. 99, Kern, CA
Built 1968 Load: 26.2 t ADT: 760
RD 304
FairOver: HARTSON SLOUGH
0.7 MI E/O RD 302, Lassen, CA
Built 1978 Load: 26.2 t ADT: 100
CR213 (LEAVITT LN)
FairOver: SUSAN RIVER
0.3 MI N OF US 395, Lassen, CA
Built 1970 Load: 26.2 t ADT: 100
INTERSTATE 5
FairOver: UP RR & AMTRAK
07-LA-005-18.96-LA, Los Angeles, CA
Built 1960 Load: 26.2 t ADT: 241,740
INTERSTATE 605
FairOver: UP RR & AMTRAK
07-LA-605-R11.20-SFSP, Los Angeles, CA
Built 1965 Load: 26.2 t ADT: 264,000
INTERSTATE 210
FairOver: BONNIE COVE
07-LA-210-R42.66-GDR, Los Angeles, CA
Built 1970 Load: 26.2 t ADT: 256,000
2ND ST
FairOver: ALAMITOS BAY CHAN
1.3MI W/O SR-1 HWY, Los Angeles, CA
Built 1967 Load: 26.2 t ADT: 43,248
SLAUSON AVE
FairOver: SAN GAB R BNSF UPRR ATSF
0.8MI W/O 605 FWY, Los Angeles, CA
Built 1958 Load: 26.2 t ADT: 30,000
SANTA FE BLVD
FairOver: CHOWCHILLA RIVER
0.7 MI N OF AVE 28, Madera, CA
Built 1973 Load: 26.2 t ADT: 259
C.R. 210
FairOver: WILLOW CREEK
0.7 MI E OF CR 211, Madera, CA
Built 1950 Load: 26.2 t ADT: 65
STATE ROUTE 175
FairOver: DOOLEY CREEK
01-MEN-175-0.82, Mendocino, CA
Built 1946 Load: 26.2 t ADT: 4,800
LAKE MENDOCINO DR
FairOver: RUSSIAN RIVER
1 MI E OF US 101, Mendocino, CA
Built 1987 Load: 26.2 t ADT: 2,514
N STATE ST
FairOver: ACKERMAN CREEK
0.2 MI N ORR SPRINGS RD, Mendocino, CA
Built 1965 Load: 26.2 t ADT: 15,534
JACK OF HEARTS ROA
FairOver: DARK Canyon crk
14.2 mi NE of DeHaven, Mendocino, CA
Built 1985 Load: 26.2 t ADT: 50
STATE ROUTE 59
FairOver: OWENS CREEK
10-MER-059-11.37, Merced, CA
Built 1925 Load: 26.2 t ADT: 7,700
TAGLIO ROAD
FairOver: DELTA-MENDOTA CANAL
0.1 MI W ORCHARD ROAD, Merced, CA
Built 1956 Load: 26.2 t ADT: 150
MAGRA ROAD
FairOver: UP RR, BNSF RY, & AMTRAK
0.4 MI SW RIVER RIDGE RD, Placer, CA
Built 1928 Load: 26.2 t ADT: 212
ROSEVILLE PARKWAY
FairOver: SECRET RAVINE
EAST OF TAYLOR RD., Placer, CA
Built 1998 Load: 26.2 t ADT: 48,401
ROUND HOUSE RD
FairOver: SPANISH CREEK
AT SH 70, Plumas, CA
Built 1940 Load: 26.2 t ADT: 60
JOHNSON LANE
FairOver: SAN GORGONIO WASH
08-RIV-010-R16.14-BAN, Riverside, CA
Built 1925 Load: 26.2 t ADT: 2
SAN TIMOTEO CYN RD
FairOver: SAN TIMOTEO CREEK
0.3 MI W/O WOODHOUSE ROAD, Riverside, CA
Built 1971 Load: 26.2 t ADT: 2,544
3RD STREET
FairOver: NORTH NORCO CHANNEL
200' W/O ROUTE 15 FWY, Riverside, CA
Built 1989 Load: 26.2 t ADT: 2,753
STATE ROUTE 160 EB
FairOver: AMERICAN RIVER
03-SAC-160-R44.46-SAC, Sacramento, CA
Built 1968 Load: 26.2 t ADT: 26,500
AUBURN BOULEVARD
FairOver: ARCADE CREEK
0.1 MI E/O GARFIELD AVE, Sacramento, CA
Built 1929 Load: 26.2 t ADT: 26,461
HORN RD
FairOver: BOYD STATION DRAINAGE CH
0.5 MI W ROUTIER RD, Sacramento, CA
Built 1978 Load: 26.2 t ADT: 4,415
NATNL TRAILS HWY
FairOver: MOJAVE RIVER
2.5 MI NORTH OF I-15, San Bernardino, CA
Built 1930 Load: 26.2 t ADT: 9,040
HAYMAR DR
FairOver: BUENA VISTA CREEK
0.35MI E/O EL CAMINO REAL, San Diego, CA
Built 1966 Load: 26.2 t ADT: 608
LOWER SAC RD
FairOver: PIXLEY SLOUGH
N OF 8 MILE RD, San Joaquin, CA
Built 1926 Load: 26.2 t ADT: 11,122
Showing 11,001-11,050 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.