US Bridges

Silver Butte RD over East Fisher Creek 076

Fair

Lincoln County, Montana · 10M W Happy`s Inn · Structure no. L27311001+07001

Built
1975
50 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Silver Butte RD over East Fisher Creek 076 is a steel stringer/multi-beam or girder carrying Silver Butte RD over East Fisher Creek 076 in Lincoln County, Montana. It was built in 1975, so it is 50 years old, older than the Montana average of 47 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 3% of them trucks, projected to reach 100 by 2040. The structure is 60 ft (18.3 m) long and 24 ft wide. If it were closed, the detour would be 60.3 mi (97 km).

CarriesSilver Butte RD
CrossesEast Fisher Creek 076
Location10M W Happy`s Inn
RouteCounty Highway 27403
StateMontana
Coordinates48.00752, -115.36771
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length60 ft (18.3 m)
Longest span57 ft (17.4 m)
Deck width24 ft (7.4 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.3 mi (97 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Silver Butte RD over East Fisher Creek 076 built?

It was built in 1975, making it 50 years old in 2025.

What condition is Silver Butte RD over East Fisher Creek 076 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 October 2024.

How much traffic does Silver Butte RD over East Fisher Creek 076 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Silver Butte RD over East Fisher Creek 076?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.4 m) and a deck 24 ft wide.

Who owns Silver Butte RD over East Fisher Creek 076?

It is owned by the County Highway Agency.