US Bridges

Frontage Road 201 over Int Moon Creek-I 94 005

Fair

Custer County, Montana · 10M SW Miles City · Structure no. L09201000+01001

Built
1962
63 years old, rebuilt 1972
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
240 ft
4 main spans
Daily traffic
82
2023 count
Owner
State
State Highway Agency

About this bridge

Frontage Road 201 over Int Moon Creek-I 94 005 is a prestressed concrete stringer/multi-beam or girder carrying Frontage Road 201 over Int Moon Creek-I 94 005 in Custer County, Montana. It was built in 1962 and reconstructed in 1972, 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 82 vehicles a day, roughly 3% of them trucks, projected to reach 87 by 2043. The structure is 240 ft (73.3 m) long and 27 ft wide.

CarriesFrontage Road 201
CrossesInt Moon Creek-I 94 005
Location10M SW Miles City
RouteCounty Highway 9201
StateMontana
Coordinates46.31001, -106.03789
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating39 US tons
Inventory rating24 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length240 ft (73.3 m)
Longest span66 ft (20.1 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic82 (2023)
Projected traffic87 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
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 Frontage Road 201 over Int Moon Creek-I 94 005 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1972.

What condition is Frontage Road 201 over Int Moon Creek-I 94 005 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 April 2023.

How much traffic does Frontage Road 201 over Int Moon Creek-I 94 005 carry?

About 82 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Frontage Road 201 over Int Moon Creek-I 94 005?

The structure is 240 ft (73.3 m) long with a longest span of 66 ft (20.1 m) and a deck 27 ft wide.

Who owns Frontage Road 201 over Int Moon Creek-I 94 005?

It is owned by the State Highway Agency.