US Bridges

Stud Horse Creek R over Lower Holstrom Ditch

Good

Meagher County, Montana · Over Lower Holstrom Ditch · Structure no. 011507000023913

Built
2017
8 years old
Condition
Good
inspected October 2024
Type
Slab
Wood or Timber
Length
29 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Stud Horse Creek R over Lower Holstrom Ditch is a wood or timber slab carrying Stud Horse Creek R over Lower Holstrom Ditch in Meagher County, Montana. It was built in 2017, so it is 8 years old, younger than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 29 ft (8.8 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesStud Horse Creek R
CrossesLower Holstrom Ditch
LocationOver Lower Holstrom Ditch
RouteFederal Lands Road 830
StateMontana
Coordinates46.73117, -110.84967
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
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 within limits of footing or piles
Structural evaluation*: *
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating—
Inventory rating—

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHL 93
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width16 ft (4.9 m)
Roadway width14 ft (4.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Stud Horse Creek R over Lower Holstrom Ditch built?

It was built in 2017, making it 8 years old in 2025.

What condition is Stud Horse Creek R over Lower Holstrom Ditch in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2024.

How much traffic does Stud Horse Creek R over Lower Holstrom Ditch carry?

About 50 vehicles per day (latest count).

How long is Stud Horse Creek R over Lower Holstrom Ditch?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 16 ft wide.

Who owns Stud Horse Creek R over Lower Holstrom Ditch?

It is owned by the U.S. Forest Service.