US Bridges

I 94 over Beaver Creek

Fair

Wibaux County, Montana · N Wibaux · Structure no. I00094242+02641

Built
1962
63 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
286 ft
5 main spans
Daily traffic
1,630
2023 count
Owner
State
State Highway Agency

About this bridge

I 94 over Beaver Creek is a prestressed concrete stringer/multi-beam or girder carrying I 94 over Beaver Creek in Wibaux County, Montana. It was built in 1962, so it is 63 years old, older than the Montana average of 47 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,630 vehicles a day, roughly 31% of them trucks, projected to reach 1,744 by 2043. The structure is 286 ft (87.1 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesI 94
CrossesBeaver Creek
LocationN Wibaux
RouteInterstate 94
CountyWibaux County
StateMontana
Coordinates46.99179, -104.18259
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating51 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length286 ft (87.1 m)
Longest span62 ft (18.9 m)
Deck width32 ft (9.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,630 (2023)
Projected traffic1,744 by 2043
Trucks31%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$806,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I 94 over Beaver Creek built?

It was built in 1962, making it 63 years old in 2025.

What condition is I 94 over Beaver Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does I 94 over Beaver Creek carry?

About 1,630 vehicles per day (2023 count), of which roughly 31% are trucks.

How long is I 94 over Beaver Creek?

The structure is 286 ft (87.1 m) long with a longest span of 62 ft (18.9 m) and a deck 32 ft wide.

Who owns I 94 over Beaver Creek?

It is owned by the State Highway Agency.