US Bridges

N Torske Overpass over Sep I 90 00

Good

Big Horn County, Montana · 3M NW Hardin · Structure no. L02245002+00001

Built
1971
54 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
304 ft
4 main spans
Daily traffic
100
2025 count
Owner
State
State Highway Agency

About this bridge

N Torske Overpass over Sep I 90 00 is a prestressed concrete stringer/multi-beam or girder carrying N Torske Overpass over Sep I 90 00 in Big Horn County, Montana. It was built in 1971, so it is 54 years old, older 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 304 ft (92.6 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesN Torske Overpass
CrossesSep I 90 00
Location3M NW Hardin
RouteCounty Highway 2245
StateMontana
Coordinates45.74618, -107.68283
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.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56 US tons
Inventory rating28 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length304 ft (92.6 m)
Longest span96 ft (29.3 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 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
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was N Torske Overpass over Sep I 90 00 built?

It was built in 1971, making it 54 years old in 2025.

What condition is N Torske Overpass over Sep I 90 00 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 March 2024.

How much traffic does N Torske Overpass over Sep I 90 00 carry?

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

How long is N Torske Overpass over Sep I 90 00?

The structure is 304 ft (92.6 m) long with a longest span of 96 ft (29.3 m) and a deck 34 ft wide.

Who owns N Torske Overpass over Sep I 90 00?

It is owned by the State Highway Agency.