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)

RICHVALE HIGHWAY

Good

Over: LITTLE DRY CREEK

1.2 MI E AGUAS FRIAS RD, Butte, CA

Built 1930 Load: 17.8 t ADT: 133

FOOTHILL BLVD

Good

Over: SOUTH BRNCH WYMAN RAVINE

JUST SOUTH MT IDA RD, Butte, CA

Built 1926 Load: 18.1 t ADT: 1,470

COX LANE

Good

Over: WYANDOTTE CREEK

0.5 MI E LONE TREE RD, Butte, CA

Built 1966 Load: 19.8 t ADT: 418

STATE ROUTE 99

Good

Over: GOLDRUN CREEK

03-BUT-099-19.51, Butte, CA

Built 1952 Load: 21.7 t ADT: 9,600

STATE ROUTE 99

Good

Over: ROCK CREEK

03-BUT-099-40.65, Butte, CA

Built 1950 Load: 22.0 t ADT: 11,600

STATE ROUTE 162

Good

Over: MFK FEATHER RI BIDWELL

03-BUT-162-26.87, Butte, CA

Built 1965 Load: 23.0 t ADT: 1,500

STATE ROUTE 32

Good

Over: PINE CREEK OVERFLOW

03-BUT-032-1.75, Butte, CA

Built 1943 Load: 23.3 t ADT: 11,700

NORD HWY

Good

Over: MUD CREEK

3.4 MI E/O HAMILT NORD CA, Butte, CA

Built 1962 Load: 23.7 t ADT: 3,200

STATE ROUTE 99

Good

Over: CROSS DRAIN

03-BUT-099-45.87, Butte, CA

Built 1915 Load: 24.3 t ADT: 11,600

STATE ROUTE 32

Good

Over: GABLE DRAW

03-BUT-032-3.74, Butte, CA

Built 1921 Load: 24.3 t ADT: 11,700

STATE ROUTE 99

Good

Over: CROSS DRAIN

03-BUT-099-45.92, Butte, CA

Built 1915 Load: 24.3 t ADT: 11,600

MIDWAY RD

Good

Over: NELSON SLOUGH

0.3 MI N NELSON RD, Butte, CA

Built 1915 Load: 24.3 t ADT: 1,254

MIDWAY RD

Good

Over: LOST SLOUGH

0.6 MI N OF NELSON RD, Butte, CA

Built 1915 Load: 24.3 t ADT: 1,380

CAMP CREEK RD

Good

Over: FLEA VALLEY CREEK

TRNOFF 0.9 MI ON PULGA RD, Butte, CA

Built 1962 Load: 24.3 t ADT: 19

BANGOR PARK RD

Good

Over: WILSON CREEK

1.0 MI W OF BANGOR HWY, Butte, CA

Built 1961 Load: 24.3 t ADT: 300

DUNSTONE DRIVE

Good

Over: WILSON CREEK

N OF LA PORTE RD, Butte, CA

Built 1970 Load: 24.3 t ADT: 3,000

STATE ROUTE 149 NB

Good

Over: CLEAR CREEK

03-BUT-149-R3.96, Butte, CA

Built 1951 Load: 25.3 t ADT: 6,875

STATE ROUTE 99

Good

Over: JUNCTION DRAW

03-BUT-099-13.25, Butte, CA

Built 1952 Load: 25.6 t ADT: 10,000

STATE ROUTE 99

Good

Over: NANCE CANYON

03-BUT-099-26.14, Butte, CA

Built 1952 Load: 25.6 t ADT: 28,250

DAYTON RD

Good

Over: COMANCHE CREEK

0.25 MI N ROGERS AVE, Butte, CA

Built 1961 Load: 25.9 t ADT: 3,533

STATE ROUTE 99

Good

Over: HAMILTON SLOUGH

03-BUT-099-8.21, Butte, CA

Built 1950 Load: 26.9 t ADT: 11,050

AFTON RD

Good

Over: LINWELLS DRAIN

JUST W/O AQUAS FRIAS RD, Butte, CA

Built 1938 Load: 27.5 t ADT: 105

WILDWOOD AVENUE

Good

Over: SYCAMORE CREEK

0.2 MI NE MANZANITA AVE, Butte, CA

Built 1999 Load: 27.5 t ADT: 1,654

STATE ROUTE 99 SB

Good

Over: BIKE PATH

03-BUT-099-R34.63-CHC, Butte, CA

Built 1966 Load: 28.5 t ADT: 24,750

OPENSHAW RD

Good

Over: DRY CREEK OVERFLOW

0.25 MI N/W SHIPPEE RD, Butte, CA

Built 1955 Load: 28.8 t ADT: 10

STATE ROUTE 32

Good

Over: PINE CREEK LAGOON

03-BUT-032-1.39, Butte, CA

Built 1958 Load: 29.2 t ADT: 11,700

STATE ROUTE 70

Good

Over: PENSTOCK UC

03-BUT-070-44.43, Butte, CA

Built 1950 Load: 29.2 t ADT: 1,350

AFTON RD

Good

Over: LATERAL "A"

0.5 MI E/O WICKMAN RD, Butte, CA

Built 1998 Load: 29.5 t ADT: 513

STATE ROUTE 99 SB

Good

Over: HAMLIN SLOUGH

03-BUT-099-25.35, Butte, CA

Built 1989 Load: 30.1 t ADT: 14,125

STATE ROUTE 99 SB

Good

Over: MUD CREEK

03-BUT-099-R37.20, Butte, CA

Built 1966 Load: 30.1 t ADT: 9,500

STATE ROUTE 99 NB

Good

Over: MUD CREEK

03-BUT-099-R37.20, Butte, CA

Built 1966 Load: 30.1 t ADT: 9,500

STATE ROUTE 99 SB

Good

Over: EDGAR SLOUGH

03-BUT-099-30.03, Butte, CA

Built 1989 Load: 30.5 t ADT: 14,125

7 MILE ROAD

Good

Over: EDGAR SLOUGH

JUST S NELSON RD, Butte, CA

Built 1965 Load: 31.4 t ADT: 184

STATE ROUTE 32

Good

Over: ROCK CREEK OVERFLOW

03-BUT-032-2.41, Butte, CA

Built 1921 Load: 31.8 t ADT: 11,700

STATE ROUTE 32

Good

Over: ROCK CREEK OVERFLOW

03-BUT-032-2.34, Butte, CA

Built 1921 Load: 31.8 t ADT: 11,700

STATE ROUTE 99

Good

Over: DRAINAGE DITCH

03-BUT-099-6.11, Butte, CA

Built 1988 Load: 32.4 t ADT: 13,400

STATE ROUTE 149 SB

Good

Over: CLEAR CREEK

03-BUT-149-R3.96, Butte, CA

Built 2008 Load: 32.4 t ADT: 6,875

STATE ROUTE 99

Good

Over: DRY CHANNEL

03-BUT-099-30.24, Butte, CA

Built 1953 Load: 32.4 t ADT: 32,600

STATE ROUTE 99

Good

Over: SCRUB CREEK

03-BUT-099-27.84, Butte, CA

Built 1952 Load: 32.4 t ADT: 28,250

STATE ROUTE 99 SB

Good

Over: BUTTE CREEK

03-BUT-099-28.72, Butte, CA

Built 1989 Load: 32.4 t ADT: 14,125

STATE ROUTE 70

Good

Over: CAMPBELL CREEK

03-BUT-070-19.61, Butte, CA

Built 1963 Load: 32.4 t ADT: 20,700

STATE ROUTE 191

Good

Over: DRY CREEK

03-BUT-191-1.68, Butte, CA

Built 1986 Load: 32.4 t ADT: 5,100

STATE ROUTE 149

Good

Over: GOLD RUN CREEK

03-BUT-149-R1.26, Butte, CA

Built 1975 Load: 32.4 t ADT: 13,750

STATE ROUTE 191

Good

Over: FALLAGER CREEK

03-BUT-191-2.61, Butte, CA

Built 1999 Load: 32.4 t ADT: 5,100

STATE ROUTE 191

Good

Over: CLEAR CREEK

03-BUT-191-4.67, Butte, CA

Built 1999 Load: 32.4 t ADT: 6,100

STATE ROUTE 99

Good

Over: DRY CREEK

03-BUT-099-20.60, Butte, CA

Built 1998 Load: 32.4 t ADT: 9,600

STATE ROUTE 70

Good

Over: OAK KNOB DRAW

03-BUT-070-8.34, Butte, CA

Built 2022 Load: 32.4 t ADT: 17,000

RIVER ROAD

Good

Over: BIG CHICO CREEK

1.0 MI N/O CHICO RIVER RD, Butte, CA

Built 2001 Load: 32.4 t ADT: 563

COLONY RD

Good

Over: WESTERN CANAL

0.55 MI N NELSON RD, Butte, CA

Built 1990 Load: 32.4 t ADT: 25

CENTERVILLE ROAD

Good

Over: BUTTE CREEK

NE OF RTE 99, Butte, CA

Built 2002 Load: 32.4 t ADT: 500

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