US Bridges

US 12 over Home Creek

Good

Rosebud County, Montana · 5M NE Melstone · Structure no. 000000201905485

Built
2019
6 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
122 ft
1 main span
Daily traffic
241
2023 count
Owner
State
State Highway Agency

About this bridge

US 12 over Home Creek is a prestressed concrete stringer/multi-beam or girder carrying US 12 over Home Creek in Rosebud County, Montana. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 241 vehicles a day, roughly 13% of them trucks, projected to reach 253 by 2043. The structure is 122 ft (37.3 m) long and 39 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesUS 12
CrossesHome Creek
Location5M NE Melstone
RouteU.S. Route 12
CountyRosebud County
StateMontana
Coordinates46.63659, -107.78064
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating47 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length122 ft (37.3 m)
Longest span119 ft (36.3 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic241 (2023)
Projected traffic253 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed123.7 mi (199 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 US 12 over Home Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is US 12 over Home Creek 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 October 2023.

How much traffic does US 12 over Home Creek carry?

About 241 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 12 over Home Creek?

The structure is 122 ft (37.3 m) long with a longest span of 119 ft (36.3 m) and a deck 39 ft wide.

Who owns US 12 over Home Creek?

It is owned by the State Highway Agency.