US Bridges

Little Joe CR RD over Sep I 90 005

Good

Mineral County, Montana · 1M W ST Regis · Structure no. L31005000+09001

Built
1983
42 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
315 ft
4 main spans
Daily traffic
58
2023 count
Owner
State
State Highway Agency

About this bridge

Little Joe CR RD over Sep I 90 005 is a prestressed concrete stringer/multi-beam or girder carrying Little Joe CR RD over Sep I 90 005 in Mineral County, Montana. It was built in 1983, so it is 42 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 58 vehicles a day, roughly 3% of them trucks, projected to reach 62 by 2043. The structure is 315 ft (96 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesLittle Joe CR RD
CrossesSep I 90 005
Location1M W ST Regis
RouteCounty Highway 31005
StateMontana
Coordinates47.30011, -115.12252
Functional classRural Major 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.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating27 US tons
Inventory rating21.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length315 ft (96 m)
Longest span112 ft (34.1 m)
Deck width30 ft (9.2 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic58 (2023)
Projected traffic62 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed123.7 mi (199 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 Little Joe CR RD over Sep I 90 005 built?

It was built in 1983, making it 42 years old in 2025.

What condition is Little Joe CR RD over Sep I 90 005 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 April 2023.

How much traffic does Little Joe CR RD over Sep I 90 005 carry?

About 58 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Little Joe CR RD over Sep I 90 005?

The structure is 315 ft (96 m) long with a longest span of 112 ft (34.1 m) and a deck 30 ft wide.

Who owns Little Joe CR RD over Sep I 90 005?

It is owned by the State Highway Agency.