US Bridges

Doe Mill Road over Butte Creek Canal

Fair

Butte County, California · 0.5 MI N Skyway · Structure no. 12C0420

Built
1968
57 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
23 ft
1 main span
Daily traffic
100
2020 count
Owner
County
County Highway Agency

About this bridge

Doe Mill Road over Butte Creek Canal is a steel stringer/multi-beam or girder carrying Doe Mill Road over Butte Creek Canal in Butte County, California. It was built in 1968, so it is 57 years old, older than the California average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 100 vehicles a day, roughly 1% of them trucks, projected to reach 217 by 2042. The structure is 23 ft (7 m) long and 16 ft wide. If it were closed, the detour would be 31.1 mi (50 km).

CarriesDoe Mill Road
CrossesButte Creek Canal
Location0.5 MI N Skyway
RouteCounty Highway 0
Coordinates39.88598, -121.61262
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating31.4 US tons
Inventory rating24.3 US tons

Structure

MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length23 ft (7 m)
Longest span20 ft (6.2 m)
Deck width16 ft (4.8 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2020)
Projected traffic217 by 2042
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.1 mi (50 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Doe Mill Road over Butte Creek Canal built?

It was built in 1968, making it 57 years old in 2025.

What condition is Doe Mill Road over Butte Creek Canal in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Doe Mill Road over Butte Creek Canal carry?

About 100 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Doe Mill Road over Butte Creek Canal?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.2 m) and a deck 16 ft wide.

Who owns Doe Mill Road over Butte Creek Canal?

It is owned by the County Highway Agency.