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
MONTGOMERY AVE
FairOver: CENTRAL IRRIGATION CANAL
JUST E OF CUTLER AVE, Glenn, CA
Built 1930 Load: 15.6 t ADT: 398
COUNTY ROAD 303
FairOver: CLARK'S VALLEY CREEK
1.5 MI N RD 400, Glenn, CA
Built 1935 Load: 15.6 t ADT: 27
COFFEE CREEK ROAD
FairOver: PERRY SLOUGH
0.2 MI SOUTH OF RTE 211, Humboldt, CA
Built 1931 Load: 15.6 t ADT: 254
SCOTTS VALLEY ROAD
FairOver: HENDRICKS CREEK
0.14 W/O EICKHOFF RD, Lake, CA
Built 1925 Load: 15.6 t ADT: 594
CHANNEL LANE
FairOver: SANTA MONICA CYN CHANNEL
0.1 N/O ENTRADA DR, Los Angeles, CA
Built 1940 Load: 15.6 t ADT: 135
DIMMICK DR.
FairOver: DIMMICK DR.
200FT FROM CRANE BLVD, Los Angeles, CA
Built 1926 Load: 15.6 t ADT: 50
C.R. 800
FairOver: MID FORK CHOWCHILLA RIV
4 MI NE OF CR 820, Madera, CA
Built 1956 Load: 15.6 t ADT: 51
NICASSIO VLY RD
FairOver: HALLECK CREEK
1 MI N LUCAS VLY RD, Marin, CA
Built 1931 Load: 15.6 t ADT: 2,000
CREEK ROAD
FairOver: SAN ANSELMO CREEK
AT DOMINGA AVE, Marin, CA
Built 1929 Load: 15.6 t ADT: 255
MAIN GATE ROAD
FairOver: SMART RAILROAD
0.37 MI E HWY 101, Marin, CA
Built 1930 Load: 15.6 t ADT: 5,000
HOLLANDS LANE
FairOver: BRANCH OF HAEHL CREEK
0.2 MI W US 101, Mendocino, CA
Built 1925 Load: 15.6 t ADT: 62
STATE ROUTE 33
FairOver: QUINTO BYPASS
10-MER-033-23.35, Merced, CA
Built 1920 Load: 15.6 t ADT: 7,475
EAST AVENUE
FairOver: MUSTANG CREEK
1.0 MI E NEWPORT RD, Merced, CA
Built 1939 Load: 15.6 t ADT: 1,308
LAKE ROAD
FairOver: LE GRAND CANAL
0.4 MI NE OLD LAKE ROAD, Merced, CA
Built 1930 Load: 15.6 t ADT: 101
PARKFIELD/CLNG RD
FairOver: LITTLE CHOLAME CREEK
1 MI N VINEYARD CANYON RD, Monterey, CA
Built 1915 Load: 15.6 t ADT: 240
OLD SONOMA RD
FairOver: CARNEROS CREEK
0.2 MI NE/O SH 121/12, Napa, CA
Built 1896 Load: 15.6 t ADT: 1,959
CONN VALLEY RD
FairOver: CONN CREEK
4.1 MI E SILVERADO TRAIL, Napa, CA
Built 1920 Load: 15.6 t ADT: 740
DONNER PASS RD
FairOver: SODA SPRINGS CREEK
0.5 MI E SODA SPRINGS RD, Nevada, CA
Built 1924 Load: 15.6 t ADT: 552
GOLDEN AVENUE
FairOver: CARBON CANYON CHANNEL
0.2 MI W/O ROSE DRIVE, Orange, CA
Built 1934 Load: 15.6 t ADT: 3,700
HARBOR BLVD
FairOver: BREA CREEK CHANNEL
0.1 MI N/O CHAPMAN AVE, Orange, CA
Built 1930 Load: 15.6 t ADT: 40,100
YORBA PLACE
FairOver: CARBON CANYON CHANNEL
0.1 MI E/O YORBA LINDA BL, Orange, CA
Built 1912 Load: 15.6 t ADT: 1,000
AUBURN FOLSOM RD
FairOver: MINERS RAVINE
1.1 MI N DOUGLAS BLVD, Placer, CA
Built 1930 Load: 15.6 t ADT: 17,248
NEW AIRPORT RD
FairOver: WISE CANAL
NE HWY 49, Placer, CA
Built 1930 Load: 15.6 t ADT: 6,098
ROCK SPRINGS RD
FairOver: SECRET RAVINE
N OF PORT KENYON RD, Placer, CA
Built 1930 Load: 15.6 t ADT: 1,725
NADER RD
FairOver: YANKEE SLOUGH
1.0 MI N OF S.H. 65, Placer, CA
Built 1935 Load: 15.6 t ADT: 100
MANZANITA RD
FairOver: DOTY RAVINE
0.9 MI N OF WISE RD, Placer, CA
Built 1940 Load: 15.6 t ADT: 112
CROTHER RD
FairOver: BEAR RIVER CANAL
0.5 MI E PLACER HILLS RD, Placer, CA
Built 1930 Load: 15.6 t ADT: 350
HORSESHOE BAR RD
FairOver: SECRET RAVINE
0.3 MI SOUTH EAST I-80, Placer, CA
Built 1929 Load: 15.6 t ADT: 6,490
SB INDIO BLVD
FairOver: UP RR & AMTRAK
0.3 MI W/O JEFFERSON STR, Riverside, CA
Built 1956 Load: 15.6 t ADT: 16,800
STATE ROUTE 160
FairOver: STEAMBOAT SLOUGH
03-SAC-160-19.76, Sacramento, CA
Built 1924 Load: 15.6 t ADT: 1,550
E BIDWELL ST
FairOver: WILLOW CREEK
0.15 MI SE CREEKSIDE DR, Sacramento, CA
Built 1930 Load: 15.6 t ADT: 10,000
AUBURN BLVD
FairOver: ARCADE CREEK
AT WINDING WAY, Sacramento, CA
Built 1927 Load: 15.6 t ADT: 14,000
MEISS RD
FairOver: DEER CREEK
0.2 MI S/E OF S.R. 16, Sacramento, CA
Built 1925 Load: 15.6 t ADT: 200
INTERSTATE 15 NB
FairOver: BNSF RY, AMTRAK, & UP RR
08-SBD-015-15.90, San Bernardino, CA
Built 1969 Load: 15.6 t ADT: 63,500
TREASURE ISLAND RD
FairOver: SIDEHILL
NE OF SHV #3, San Francisco, CA
Built 1938 Load: 15.6 t ADT: 1,500
INTERSTATE 5
FairOver: CARLTON AVE
10-SJ-005-27.66-STKN, San Joaquin, CA
Built 1970 Load: 15.6 t ADT: 56,500
MILTON ROAD
FairOver: CHANNEL A
0.5 MI W OF FINE RD, San Joaquin, CA
Built 1927 Load: 15.6 t ADT: 301
SEXTON RD
FairOver: SSJID CANAL
0.2 MI N OF RIVER RD, San Joaquin, CA
Built 1941 Load: 15.6 t ADT: 210
KOSTER RD
FairOver: HOSPITAL CREEK OVERFLOW
0.5 MI N GAFFERY RD, San Joaquin, CA
Built 1947 Load: 15.6 t ADT: 390
BOLLEA ROAD
FairOver: BEAR CREEK
NEAR CALAVERAS CO LINE, San Joaquin, CA
Built 1997 Load: 15.6 t ADT: 26
BROAD ST
FairOver: SAN LUIS OBISPO CREEK
0.1 MI NORTH OF HIGUERA, San Luis Obispo, CA
Built 1911 Load: 15.6 t ADT: 3,000
MORRO ST
FairOver: SAN LUIS OBISPO CREEK
JUST W OF HIGUERA, San Luis Obispo, CA
Built 1925 Load: 15.6 t ADT: 3,000
EQUIPMENT SHOP RD
FairOver: STENNER CREEK
.1KM W OF MT BISHOP RD, San Luis Obispo, CA
Built 1947 Load: 15.6 t ADT: 50
STATE ROUTE 82
FairOver: CORDILLERAS CREEK
04-SM-082-5.15-RDWC, San Mateo, CA
Built 1915 Load: 15.6 t ADT: 25,000
BERNAL AVE
FairOver: EASTON CREEK
EAST OF EASTON DR, San Mateo, CA
Built 1936 Load: 15.6 t ADT: 300
ALPINE ROAD
FairOver: ALPINE CREEK
0.01 MI W OF PESCADERO RD, San Mateo, CA
Built 1920 Load: 15.6 t ADT: 91
MOUNTAIN HOME RD
FairOver: BEAR CREEK
0.3 MI S OF S.H. 84, San Mateo, CA
Built 1900 Load: 15.6 t ADT: 500
RAILROAD AVE
FairOver: SAN MATEO CREEK
SOUTH OF TILTON, San Mateo, CA
Built 1902 Load: 15.6 t ADT: 230
GAZOS CREEK ROAD
FairOver: HILLSIDE
0.8 MI E/O CLOVERDALE RD, San Mateo, CA
Built 1983 Load: 15.6 t ADT: 75
SEASIDE SCH RD SHV
FairOver: HILLSIDE
0.25 MILES W/O STAGE RD, San Mateo, CA
Built 1976 Load: 15.6 t ADT: 25
Showing 8,201-8,250 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.