US Bridges

Frontage Road 005 over Moon Creek 093

Good

Custer County, Montana · 9M SW Miles City · Structure no. L09005001+05001

Built
2013
12 years old
Condition
Good
inspected November 2024
Type
Tee Beam
Prestressed Concrete
Length
98 ft
1 main span
Daily traffic
100
2025 count
Owner
State
State Highway Agency

About this bridge

Frontage Road 005 over Moon Creek 093 is a prestressed concrete tee beam carrying Frontage Road 005 over Moon Creek 093 in Custer County, Montana. It was built in 2013, so it is 12 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 98 ft (30 m) long and 18 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFrontage Road 005
CrossesMoon Creek 093
Location9M SW Miles City
RouteState Highway 9005
StateMontana
Coordinates46.31904, -106.00916
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34 US tons
Inventory rating20 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length98 ft (30 m)
Longest span95 ft (29 m)
Deck width18 ft (5.6 m)
Roadway width16 ft (5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Frontage Road 005 over Moon Creek 093 built?

It was built in 2013, making it 12 years old in 2025.

What condition is Frontage Road 005 over Moon Creek 093 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 November 2024.

How much traffic does Frontage Road 005 over Moon Creek 093 carry?

About 100 vehicles per day (2025 count), of which roughly 3% are trucks.

How long is Frontage Road 005 over Moon Creek 093?

The structure is 98 ft (30 m) long with a longest span of 95 ft (29 m) and a deck 18 ft wide.

Who owns Frontage Road 005 over Moon Creek 093?

It is owned by the State Highway Agency.