US Bridges

E Sager LN over Clark Fork River 048

Fair

Powell County, Montana · 5M S Deer Lodge · Structure no. L39113000+05001

Built
2006
19 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
154 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

E Sager LN over Clark Fork River 048 is a prestressed concrete stringer/multi-beam or girder carrying E Sager LN over Clark Fork River 048 in Powell County, Montana. It was built in 2006, so it is 19 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 154 ft (47 m) long and 30 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesE Sager LN
CrossesClark Fork River 048
Location5M S Deer Lodge
RouteCounty Highway 39113
StateMontana
Coordinates46.31739, -112.73626
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length154 ft (47 m)
Longest span75 ft (23 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.4 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 closed6.8 mi (11 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$104,000
NavigationNo navigation control on waterway

Frequently asked questions

When was E Sager LN over Clark Fork River 048 built?

It was built in 2006, making it 19 years old in 2025.

What condition is E Sager LN over Clark Fork River 048 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 December 2024.

How much traffic does E Sager LN over Clark Fork River 048 carry?

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

How long is E Sager LN over Clark Fork River 048?

The structure is 154 ft (47 m) long with a longest span of 75 ft (23 m) and a deck 30 ft wide.

Who owns E Sager LN over Clark Fork River 048?

It is owned by the County Highway Agency.