US Bridges

County Road 007 over Milk River 014

Good

Blaine County, Montana · 1M N Lohman · Structure no. L03026000+07001

Built
1997
28 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
197 ft
3 main spans
Daily traffic
126
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 007 over Milk River 014 is a prestressed concrete stringer/multi-beam or girder carrying County Road 007 over Milk River 014 in Blaine County, Montana. It was built in 1997, so it is 28 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 126 vehicles a day, roughly 3% of them trucks, projected to reach 133 by 2043. The structure is 197 ft (59.9 m) long and 26 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCounty Road 007
CrossesMilk River 014
Location1M N Lohman
RouteCounty Highway 3007
StateMontana
Coordinates48.60031, -109.39597
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 protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating29 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length197 ft (59.9 m)
Longest span66 ft (20 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic126 (2023)
Projected traffic133 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 County Road 007 over Milk River 014 built?

It was built in 1997, making it 28 years old in 2025.

What condition is County Road 007 over Milk River 014 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 2024.

How much traffic does County Road 007 over Milk River 014 carry?

About 126 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is County Road 007 over Milk River 014?

The structure is 197 ft (59.9 m) long with a longest span of 66 ft (20 m) and a deck 26 ft wide.

Who owns County Road 007 over Milk River 014?

It is owned by the County Highway Agency.