US Bridges

Houghton Creek RD over Fisher River 086

Fair

Lincoln County, Montana · 12M W Happy`s Inn · Structure no. L27313000+01001

Built
1985
40 years old
Condition
Fair
inspected October 2024
Type
Channel Beam
Prestressed Concrete
Length
55 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Houghton Creek RD over Fisher River 086 is a prestressed concrete channel beam carrying Houghton Creek RD over Fisher River 086 in Lincoln County, Montana. It was built in 1985, so it is 40 years old, younger 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 6 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 55 ft (16.8 m) long and 15 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesHoughton Creek RD
CrossesFisher River 086
Location12M W Happy`s Inn
RouteCounty Highway 27415
StateMontana
Coordinates48.02595, -115.33889
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating36 US tons
Inventory rating36 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span54 ft (16.5 m)
Deck width15 ft (4.6 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 Houghton Creek RD over Fisher River 086 built?

It was built in 1985, making it 40 years old in 2025.

What condition is Houghton Creek RD over Fisher River 086 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 Houghton Creek RD over Fisher River 086 carry?

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

How long is Houghton Creek RD over Fisher River 086?

The structure is 55 ft (16.8 m) long with a longest span of 54 ft (16.5 m) and a deck 15 ft wide.

Who owns Houghton Creek RD over Fisher River 086?

It is owned by the County Highway Agency.