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
FREEZEOUT ROAD
FairOver: FREEZEOUT CREEK
0.3 MI S MOSCOW RD, Sonoma, CA
Built 1971 Load: 19.4 t ADT: 200
WEST DRY CREEK RD
FairOver: PENA CREEK
0.7 MI NW YOAKIM BR RD, Sonoma, CA
Built 1924 Load: 19.4 t ADT: 300
VALLEY HOME ROAD
FairOver: LONE TREE CREEK
0.68 MI S/E LONE TREE RD, Stanislaus, CA
Built 1934 Load: 19.4 t ADT: 3,796
WILLMS ROAD
FairOver: DRY CREEK TRIBUTARY
0.1 MI W JCT ROCK RIV RD, Stanislaus, CA
Built 1925 Load: 19.4 t ADT: 52
MINNEAR ROAD
FairOver: M.I.D. MAIN CANAL
0.1 MI E ROSELLE AVE, Stanislaus, CA
Built 1948 Load: 19.4 t ADT: 1,000
TIM BELL ROAD
FairOver: M.I.D. MAIN CANAL
JUST SOUTH VINEYARD RD, Stanislaus, CA
Built 1919 Load: 19.4 t ADT: 1,100
FREEMAN SCH HSE RD
FairOver: JEWETT CREEK
0.1 MI N CORNING RD, Tehama, CA
Built 1939 Load: 19.4 t ADT: 200
LOWREY ROAD
FairOver: VALLE GULCH
0.2 MI W RED BANK RD, Tehama, CA
Built 1952 Load: 19.4 t ADT: 90
HOUGHTON AVE
FairOver: JEWETT CREEK
0.3 MI N LOLETA AVE, Tehama, CA
Built 1937 Load: 19.4 t ADT: 600
BUTTE MOUNTAIN RD
FairOver: PARKER CREEK
1.7 MI N/O LONG HOLLOW RD, Tehama, CA
Built 1963 Load: 19.4 t ADT: 20
PRICE CK CMPBEL RD
FairOver: PRICE CREEK
PATTERSON RANCH ROAD, Trinity, CA
Built 1965 Load: 19.4 t ADT: 118
SOUTHGATE DR
FairOver: SONORA CREEK
SOUTH OF RTE 49, Tuolumne, CA
Built 1940 Load: 19.4 t ADT: 3,000
EDGEWATER DRIVE NB
FairOver: ELMHURST CANAL
0.2 MI N/W ROLAND WAY, Alameda, CA
Built 1968 Load: 19.8 t ADT: 2,173
OLD 99W
FairOver: HUNTERS CREEK
1.2 MI N DELEVAN RD, Colusa, CA
Built 1934 Load: 19.8 t ADT: 669
CONCORD AVE
FairOver: WALNUT CREEK
0.83 MI E SH 680, Contra Costa, CA
Built 1964 Load: 19.8 t ADT: 18,144
W NEES AVE
FairOver: DELTA-MENDOTA CANAL
1.33 MI W OF WASHOE AVE, Fresno, CA
Built 1950 Load: 19.8 t ADT: 3,100
N JERROLD AVE
FairOver: DELTA-MENDOTA CANAL
1.3 MI NORTH OF NEES AVE, Fresno, CA
Built 1950 Load: 19.8 t ADT: 125
GENTRY RD
FairOver: VAIL CANAL
1.5 MI S/O EDDINS RD, Imperial, CA
Built 1936 Load: 19.8 t ADT: 1,360
FITES RD
FairOver: WESTSIDE MAIN CANAL
20 FT S/O CARTER RD, Imperial, CA
Built 1940 Load: 19.8 t ADT: 80
STATE ROUTE 39
FairOver: PEJSA CANYON
07-LA-039-22.17, Los Angeles, CA
Built 1933 Load: 19.8 t ADT: 1,850
INTERSTATE 10
FairOver: BUDLONG AVENUE
07-LA-010-R13.54-LA, Los Angeles, CA
Built 1962 Load: 19.8 t ADT: 287,000
GRAND AVE
FairOver: SAN ANTONIO WASH
0.2MI W/O E END AVE, Los Angeles, CA
Built 1962 Load: 19.8 t ADT: 4,267
AVENUE 21 1/2
FairOver: BERENDA SLOUGH
0.3 MI W OF ROAD 15, Madera, CA
Built 1956 Load: 19.8 t ADT: 120
OLD TOLL RD/CR 108
FairOver: MC DOWELL CREEK
0.05 MI S SR 175, Mendocino, CA
Built 1969 Load: 19.8 t ADT: 60
OLD TOLL RD/CR 108
FairOver: COLEMAN CREEK
2.7 MI S S.R. 175, Mendocino, CA
Built 1940 Load: 19.8 t ADT: 72
PRIMROSE DR
FairOver: WILLITS CREEK
0.075 MI S LUPINE RD, Mendocino, CA
Built 1967 Load: 19.8 t ADT: 545
SANDY MUSH ROAD
FairOver: DEADMAN CREEK
1.8 MI E DAN MC NAMARA RD, Merced, CA
Built 1965 Load: 19.8 t ADT: 500
COTTON GIN ROAD
FairOver: DELTA-MENDOTA CANAL
0.8 MI E OF SR 165, Merced, CA
Built 1950 Load: 19.8 t ADT: 223
ALMOND DRIVE
FairOver: DELTA-MENDOTA CANAL
1.5 MI W ORTIGALITA ROAD, Merced, CA
Built 1950 Load: 19.8 t ADT: 315
MOONEY FLAT ROAD
FairOver: SLACKS RAVINE
0.7 MI NORTH OF ROUTE 20, Nevada, CA
Built 1959 Load: 19.8 t ADT: 606
STATE ROUTE 55
FairOver: NEWPORT BEACH CHANNEL
12-ORA-055-0.18-NPTB, Orange, CA
Built 1936 Load: 19.8 t ADT: 47,000
WALKER STREET
FairOver: CARBON CREEK CHANNEL
0.1 MI. S/O BALL ROAD, Orange, CA
Built 1958 Load: 19.8 t ADT: 16,820
BREWER RD
FairOver: AUBURN RAVINE
7.6 MI N BASE LINE RD, Placer, CA
Built 1941 Load: 19.8 t ADT: 110
SQUAW PEAK ROAD
FairOver: SQUAW CREEK
0.1 1 W SQUAW VALLEY, Placer, CA
Built 1993 Load: 19.8 t ADT: 2,497
ROAD 23N37
FairOver: JAMISON CREEK
JAMISON CREEK, Plumas, CA
Built 1952 Load: 19.8 t ADT: 50
ORCHARD STREET
FairOver: LITTLE SAN GORGONIO CH
0.2 MI. E/O BEAUMONT AVE., Riverside, CA
Built 1951 Load: 19.8 t ADT: 1,077
INDIO BLVD WB
FairOver: WHITEWATER RIVER
0.8 MI. NW/O MONROE ST, Riverside, CA
Built 1956 Load: 19.8 t ADT: 9,750
ISLETON RD(WG)
FairOver: GEORGIANA SLOUGH
CONNCTS ISLTN RD + RIV RD, Sacramento, CA
Built 1962 Load: 19.8 t ADT: 2,458
SUNRISE BLVD
FairOver: AMERICAN RIVER
1.7 MI N OF US 50, Sacramento, CA
Built 1955 Load: 19.8 t ADT: 78,370
MAIN STREET
FairOver: CALIFORNIA AQUEDUCT
0.7 MI E OF RTE 15, San Bernardino, CA
Built 1970 Load: 19.8 t ADT: 27,667
PARK ENTRANCE ROAD
FairOver: SAWPIT CREEK
1.1 MI E OF PARK GATE, San Bernardino, CA
Built 1973 Load: 19.8 t ADT: 500
U.S. HIGHWAY 101
FairOver: ADOBE CREEK
04-SCL-101-50.66-PA, Santa Clara, CA
Built 1960 Load: 19.8 t ADT: 187,000
MINERAL RD
FairOver: BAILEY CREEK
0.2 MI S OF SR 44, Shasta, CA
Built 1947 Load: 19.8 t ADT: 123
HOT SPRINGS RD
FairOver: JANEEN CREEK
0.4 MI W OF BIG BEND RD, Shasta, CA
Built 1940 Load: 19.8 t ADT: 50
GRANT ST
FairOver: FOSS CREEK
IN HEALDSBURG, Sonoma, CA
Built 1920 Load: 19.8 t ADT: 1,830
HAMILTON ROAD
FairOver: DELTA-MENDOTA CANAL
0.55 MI W/O MCCRACKEN, Stanislaus, CA
Built 1946 Load: 19.8 t ADT: 289
DRAPER ROAD
FairOver: CCID MAIN CANAL
0.25 MI S ORESTIMBA RD, Stanislaus, CA
Built 1939 Load: 19.8 t ADT: 534
TULLY ROAD
FairOver: T.I.D. CERES MAIN CANAL
80 FT SOUTH HATCH RD, Stanislaus, CA
Built 1924 Load: 19.8 t ADT: 2,100
COVERT ROAD
FairOver: M.I.D. LATERAL #6
0.4 MI W/O TOOMES RD, Stanislaus, CA
Built 1925 Load: 19.8 t ADT: 1,345
SONORA ROAD
FairOver: MARTELLS CREEK
1.1 MI E FRANKENHEIMER RD, Stanislaus, CA
Built 1920 Load: 19.8 t ADT: 182
Showing 9,251-9,300 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.