US Bridges

Horse Ranch RD over Armells Creek 117

Good

Fergus County, Montana · 8M NW Fergus · Structure no. 000000000002762

Built
2017
8 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Concrete Continuous
Length
76 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Horse Ranch RD over Armells Creek 117 is a concrete continuous tee beam carrying Horse Ranch RD over Armells Creek 117 in Fergus 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 76 ft (23.3 m) long and 28 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesHorse Ranch RD
CrossesArmells Creek 117
Location8M NW Fergus
RouteCounty Highway 14112
StateMontana
Coordinates47.39636, -109.13187
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61 US tons
Inventory rating44 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length76 ft (23.3 m)
Longest span75 ft (22.9 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.6 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 closed16.2 mi (26 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 Horse Ranch RD over Armells Creek 117 built?

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

What condition is Horse Ranch RD over Armells Creek 117 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 August 2023.

How much traffic does Horse Ranch RD over Armells Creek 117 carry?

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

How long is Horse Ranch RD over Armells Creek 117?

The structure is 76 ft (23.3 m) long with a longest span of 75 ft (22.9 m) and a deck 28 ft wide.

Who owns Horse Ranch RD over Armells Creek 117?

It is owned by the County Highway Agency.