US Bridges

Big Sheep CR RD C over Big Sheep Creek 134

Good

Beaverhead County, Montana · 11.5M SW Dell · Structure no. 000000000002192

Built
2017
8 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
55 ft
1 main span
Daily traffic
178
2023 count
Owner
County
County Highway Agency

About this bridge

Big Sheep CR RD C over Big Sheep Creek 134 is a steel stringer/multi-beam or girder carrying Big Sheep CR RD C over Big Sheep Creek 134 in Beaverhead 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 178 vehicles a day, roughly 3% of them trucks, projected to reach 190 by 2043. The structure is 55 ft (16.8 m) long and 25 ft wide. If it were closed, the detour would be 85.1 mi (137 km).

CarriesBig Sheep CR RD C
CrossesBig Sheep Creek 134
Location11.5M SW Dell
RouteCounty Highway 1302
StateMontana
Coordinates44.60786, -112.80216
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 alignment6: Equal to present minimum criteria
Operating rating37.8 US tons
Inventory rating29.3 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadHL 93
Structure length55 ft (16.8 m)
Longest span54 ft (16.5 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic178 (2023)
Projected traffic190 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed85.1 mi (137 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 Big Sheep CR RD C over Big Sheep Creek 134 built?

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

What condition is Big Sheep CR RD C over Big Sheep Creek 134 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 July 2024.

How much traffic does Big Sheep CR RD C over Big Sheep Creek 134 carry?

About 178 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Big Sheep CR RD C over Big Sheep Creek 134?

The structure is 55 ft (16.8 m) long with a longest span of 54 ft (16.5 m) and a deck 25 ft wide.

Who owns Big Sheep CR RD C over Big Sheep Creek 134?

It is owned by the County Highway Agency.