Butte County, CA

441 public highway bridges

Butte County Bridge Snapshot

Butte County, California contains 441 public highway bridges in the FHWA National Bridge Inventory. Roughly 28.1% are rated “Good,” 57.6% “Fair,” 5.9% “Poor,” and 5.9% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in CA are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

441

Total Bridges

28.1%

Good

5.9%

Poor

5.9%

Structurally Deficient

Condition Distribution

Good

28.1% (124)

Fair

57.6% (254)

Poor

5.9% (26)

SD

5.9% (26)

All Bridges (441)

Sort:

HAMILTON NORD CANA

Over: ROCK CREEK

3.0 MI N OF SH 32, Butte, CA

Built 1967 Load: 31.1 t ADT: 694

RICETON HWY

Over: LATERAL "A" DRAIN

1.2 MI N/O BIGGS-PRIN HWY, Butte, CA

Built 1939 Load: 31.4 t ADT: 780

NELSON SHIPPEE RD

Over: CHEROKEE CANAL

1 MI W OF SH 99, Butte, CA

Built 1960 Load: 32.1 t ADT: 95

MUIR RD

Over: CHANNEL SLOUGH

0.77 MI N/O SACRAMENTO AV, Butte, CA

Built 1936 Load: 32.1 t ADT: 225

STATE ROUTE 162

Over: RICE CANAL

03-BUT-162-7.00, Butte, CA

Built 1956 Load: 32.4 t ADT: 930

STATE ROUTE 32

Over: SACRAMENTO RIVER

03-BUT-032-0.01, Butte, CA

Built 1987 Load: 32.4 t ADT: 11,700

STATE ROUTE 70

Over: TAILING DITCH

03-BUT-070-12.63, Butte, CA

Built 1958 Load: 32.4 t ADT: 14,600

STATE ROUTE 149 SB

Over: DRY CREEK

03-BUT-149-R3.50, Butte, CA

Built 2008 Load: 32.4 t ADT: 6,875

STATE ROUTE 99 NB

Over: BUTTE CREEK

03-BUT-099-28.72, Butte, CA

Built 2014 Load: 32.4 t ADT: 14,125

STATE ROUTE 162

Over: FEATHER RIVER

03-BUT-162-15.57-OVL, Butte, CA

Built 2000 Load: 32.4 t ADT: 8,600

STATE ROUTE 70

Over: GOLD RUN CREEK

03-BUT-070-R21.70, Butte, CA

Built 2008 Load: 32.4 t ADT: 12,500

STATE ROUTE 32

Over: PINE CREEK OVERFLOW

03-BUT-032-1.63, Butte, CA

Built 2006 Load: 32.4 t ADT: 11,700

STATE ROUTE 70

Over: FLAG CANYON CRK

03-BUT-070-24.26, Butte, CA

Built 2015 Load: 32.4 t ADT: 2,400

STATE ROUTE 70

Over: MILL CREEK

03-BUT-070-42.06, Butte, CA

Built 2021 Load: 32.4 t ADT: 1,700

OROVILLE CHICO HWY

Over: BUTTE CREEK

1.1 MI E MIDWAY RD, Butte, CA

Built 1986 Load: 32.4 t ADT: 332

MIDWAY RD

Over: ASH CREEK

1.7 MI N OF NELSON RD, Butte, CA

Built 1985 Load: 32.4 t ADT: 1,254

MIDWAY ROAD

Over: NORTH FORK HAMLIN SLOUGH

3.2 MI N OF NELSON RD, Butte, CA

Built 1992 Load: 32.4 t ADT: 1,254

MIDWAY ROAD

Over: COMANCHE CREEK

0.1 MI S PARK AVE, Butte, CA

Built 1952 Load: 32.4 t ADT: 16,900

LONE TREE ROAD

Over: WYMAN RAVINE

1.8 MI S PALERMO RD, Butte, CA

Built 1992 Load: 32.4 t ADT: 871

LARKIN RD

Over: SUTTER-BUTTE CANAL

1.5 MI N ORVLE-GRIDLY RD, Butte, CA

Built 1970 Load: 32.4 t ADT: 1,200

BIGGS AVE

Over: RUDY CREEK

0.2 MI E OF 18TH ST, Butte, CA

Built 1966 Load: 32.4 t ADT: 550

AGUAS FRIAS ROAD

Over: RICHVALE WEST DRAIN

0.1 KM N OF RICHVALE HWY, Butte, CA

Built 1996 Load: 32.4 t ADT: 356

ORD FERRY ROAD

Over: ANGEL SLOUGH

0.1 MI E OF RIVER RD, Butte, CA

Built 1985 Load: 32.4 t ADT: 1,364

BRUCE ROAD

Over: S FORK DEAD HORSE SLOUGH

N/O 6TH ST, Butte, CA

Built 1981 Load: 32.4 t ADT: 14,500

COX LANE

Over: WYMAN RAVINE

0.4 MI E OF SH 70, Butte, CA

Built 1989 Load: 32.4 t ADT: 300

NELSON RD

Over: WESTERN CANAL

1.6 MI W MIDWAY RD, Butte, CA

Built 1958 Load: 32.4 t ADT: 220

OPHIR RD EXT

Over: KUSEL SLOUGH

AT LINCOLN BLVD, Butte, CA

Built 1988 Load: 32.4 t ADT: 1,743

BOOK FARM ROAD

Over: LITTLE DRY CREEK

W OF SR 99, N OF SR 149, Butte, CA

Built 2008 Load: 32.4 t ADT: 100

COHASSET RD

Over: SYCAMORE CREEK TRIBUTARY

0.7 MI N/O EATON RD, Butte, CA

Built 2008 Load: 32.4 t ADT: 10,300

DAYTON -DURHAM HWY

Over: HAMLIN SLOUGH

EAST OF HAMLIN ROAD, Butte, CA

Built 2008 Load: 32.4 t ADT: 2,470

AGUAS FRIAS ROAD

Over: BUTTE CREEK

2.8 MI N RICHVALE RD, Butte, CA

Built 2009 Load: 32.4 t ADT: 1,000

EAST 20TH STREET

Over: LTL CHC-BUT CR DIV CHAN

0.35 MI E OF BRUCE ROAD, Butte, CA

Built 2009 Load: 32.4 t ADT: 2,200

AFTON RD

Over: SCHOHR DRAIN

0.3 MI E COLUSA CO. LINE, Butte, CA

Built 1957 Load: 32.6 t ADT: 60

WILSON LANDING RD

Over: PINE CREEK

4.9 MI W OF SH 99, Butte, CA

Built 1962 Load: 32.6 t ADT: 164

LARKIN RD

Over: MAIN DRAINAGE CANAL

3.91 MI N/E FROM SH 99, Butte, CA

Built 1938 Load: 32.7 t ADT: 2,308

7 MILE LANE

Over: EDGAR SLOUGH

1.1 MI N OF NELSON RD, Butte, CA

Built 1956 Load: 33.0 t ADT: 710

BRUCE RD

Over: LITTLE CHICO CREEK

0.5 MI S HUMBOLT RD, Butte, CA

Built 1969 Load: 33.0 t ADT: 10,600

DURNEL RD

Over: WESTERN CANAL

0.5 MI N OF NELSON RD, Butte, CA

Built 1965 Load: 33.0 t ADT: 48

MIDDLE HONCUT RD

Over: WYMAN RAVINE

0.3 MI E OF SH 70, Butte, CA

Built 1968 Load: 33.4 t ADT: 70

STATE ROUTE 70

Over: DUDLEY CREEK

03-BUT-070-18.50, Butte, CA

Built 1963 Load: 33.7 t ADT: 20,700

HAMILTON RD

Over: BIGGS EXTENSION CANAL

1.4 MI E/O RICETON HWY, Butte, CA

Built 1940 Load: 33.7 t ADT: 70

DURNEL RD

Over: NORTH FORK HAMLIN SLOUGH

1.75 MI N OF NELSON RD, Butte, CA

Built 1968 Load: 34.7 t ADT: 48

CHEROKEE RD

Over: THERMALITO CANAL

0.4 MI NE TBLE MTN BL, Butte, CA

Built 1966 Load: 34.7 t ADT: 775

IVY ST

Over: LITTLE CHICO CREEK

BTWN 9TH & 11TH STS, Butte, CA

Built 1958 Load: 35.3 t ADT: 3,500

HICKS LANE

Over: SYCAMORE CREEK

0.5 MI N/O EATON RD, Butte, CA

Built 1962 Load: 35.3 t ADT: 3,000

HUMBOLDT RD

Over: BUTTE CREEK

6.5 MI E JCT WITH S.R. 32, Butte, CA

Built 1976 Load: 35.6 t ADT: 401

CANA HWY

Over: DIANNE'S DITCH #3

0.9 MI W OF SH 99, Butte, CA

Built 1967 Load: 35.6 t ADT: 210

NELSON ROAD

Over: CREED SLOUGH

0.7 MI E OF 7 MILE LANE, Butte, CA

Built 1966 Load: 35.6 t ADT: 538

NELSON RD

Over: EDGAR SLOUGH

0.8 MI EAST OF 7 MILE LNE, Butte, CA

Built 1966 Load: 35.6 t ADT: 640

RICHARDS AVE

Over: SUTTER-BUTTE CANAL

0.5 MI E LARKIN RD, Butte, CA

Built 1966 Load: 36.0 t ADT: 238

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026