US Bridges

Huson RD over Int Huson-I 90 012

Good

Missoula County, Montana · Huson · Structure no. L32168000+01901

Built
1971
54 years old, rebuilt 2010
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
225 ft
4 main spans
Daily traffic
393
2023 count
Owner
State
State Highway Agency

About this bridge

Huson RD over Int Huson-I 90 012 is a prestressed concrete stringer/multi-beam or girder carrying Huson RD over Int Huson-I 90 012 in Missoula County, Montana. It was built in 1971 and reconstructed in 2010, 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 393 vehicles a day, roughly 3% of them trucks, projected to reach 421 by 2043. The structure is 225 ft (68.5 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesHuson RD
CrossesInt Huson-I 90 012
LocationHuson
RouteCounty Highway 32168
StateMontana
Coordinates47.03283, -114.32326
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 inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating28 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length225 ft (68.5 m)
Longest span77 ft (23.5 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic393 (2023)
Projected traffic421 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed3.1 mi (5 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 Huson RD over Int Huson-I 90 012 built?

It was built in 1971, making it 54 years old in 2025. It was reconstructed in 2010.

What condition is Huson RD over Int Huson-I 90 012 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 May 2023.

How much traffic does Huson RD over Int Huson-I 90 012 carry?

About 393 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Huson RD over Int Huson-I 90 012?

The structure is 225 ft (68.5 m) long with a longest span of 77 ft (23.5 m) and a deck 33 ft wide.

Who owns Huson RD over Int Huson-I 90 012?

It is owned by the State Highway Agency.