US Bridges

County Highway over Bowline Creek

Good

McKenzie County, North Dakota · 9N 17W of Grassy Butte · Structure no. 000000027122420

Built
1984
41 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
50 ft
1 main span
Daily traffic
135
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Bowline Creek is a prestressed concrete tee beam carrying County Highway over Bowline Creek in McKenzie County, North Dakota. It was built in 1984, so it is 41 years old, younger than the North Dakota average of 48.2 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 135 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2038. The structure is 50 ft (15.2 m) long and 31 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesCounty Highway
CrossesBowline Creek
Location9N 17W of Grassy Butte
RouteCounty Highway 2738
Coordinates47.53856, -103.60239
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 protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating56.8 US tons
Inventory rating32.2 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length50 ft (15.2 m)
Longest span48 ft (14.7 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic135 (2018)
Projected traffic150 by 2038
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 Highway over Bowline Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is County Highway over Bowline 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 November 2023.

How much traffic does County Highway over Bowline Creek carry?

About 135 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is County Highway over Bowline Creek?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.7 m) and a deck 31 ft wide.

Who owns County Highway over Bowline Creek?

It is owned by the County Highway Agency.