US Bridges

I 94 over Sep Cemetery RD

Fair

Custer County, Montana · S Edge Miles City · Structure no. I00094137+08981

Built
1961
64 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
153 ft
3 main spans
Daily traffic
2,354
2023 count
Owner
State
State Highway Agency

About this bridge

I 94 over Sep Cemetery RD is a prestressed concrete stringer/multi-beam or girder carrying I 94 over Sep Cemetery RD in Custer County, Montana. It was built in 1961, so it is 64 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 2,354 vehicles a day, roughly 23% of them trucks, projected to reach 2,471 by 2043. The structure is 153 ft (46.6 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
CrossesSep Cemetery RD
LocationS Edge Miles City
RouteInterstate 94
CountyCuster County
StateMontana
Coordinates46.39131, -105.82996
Functional classUrban 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span61 ft (18.6 m)
Deck width32 ft (9.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,354 (2023)
Projected traffic2,471 by 2043
Trucks23%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$432,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 94 over Sep Cemetery RD built?

It was built in 1961, making it 64 years old in 2025.

What condition is I 94 over Sep Cemetery RD 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 July 2023.

How much traffic does I 94 over Sep Cemetery RD carry?

About 2,354 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I 94 over Sep Cemetery RD?

The structure is 153 ft (46.6 m) long with a longest span of 61 ft (18.6 m) and a deck 32 ft wide.

Who owns I 94 over Sep Cemetery RD?

It is owned by the State Highway Agency.