US Bridges

Dovetail Valentine over Box Elder Creek 007

Good

Petroleum County, Montana · 6M N Winnett · Structure no. L35101006+03001

Built
1982
43 years old
Condition
Good
inspected August 2024
Type
Tee Beam
Prestressed Concrete
Length
93 ft
1 main span
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Dovetail Valentine over Box Elder Creek 007 is a prestressed concrete tee beam carrying Dovetail Valentine over Box Elder Creek 007 in Petroleum County, Montana. It was built in 1982, so it is 43 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 93 ft (28.3 m) long and 26 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

CarriesDovetail Valentine
CrossesBox Elder Creek 007
Location6M N Winnett
RouteCounty Highway 35001
StateMontana
Coordinates47.09815, -108.35608
Functional classRural Major Collector

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length93 ft (28.3 m)
Longest span90 ft (27.4 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic100 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.2 mi (39 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 Dovetail Valentine over Box Elder Creek 007 built?

It was built in 1982, making it 43 years old in 2025.

What condition is Dovetail Valentine over Box Elder Creek 007 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 August 2024.

How much traffic does Dovetail Valentine over Box Elder Creek 007 carry?

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

How long is Dovetail Valentine over Box Elder Creek 007?

The structure is 93 ft (28.3 m) long with a longest span of 90 ft (27.4 m) and a deck 26 ft wide.

Who owns Dovetail Valentine over Box Elder Creek 007?

It is owned by the County Highway Agency.