US Bridges

149th Ave. SW over Creek

Good

Bowman County, North Dakota · 3 West 5 North Bowman · Structure no. 000000006128010

Built
1960
65 years old, rebuilt 1991
Condition
Good
inspected October 2023
Type
Tee Beam
Concrete
Length
30 ft
1 main span
Daily traffic
140
2019 count
Owner
County
County Highway Agency

About this bridge

149th Ave. SW over Creek is a concrete tee beam carrying 149th Ave. SW over Creek in Bowman County, North Dakota. It was built in 1960 and reconstructed in 1991, so it is 65 years old, older 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 140 vehicles a day, roughly 13% of them trucks, projected to reach 140 by 2039. The structure is 30 ft (9.1 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Carries149th Ave. SW
CrossesCreek
Location3 West 5 North Bowman
RouteCounty Highway 0
Coordinates46.26496, -103.47381
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating95.3 US tons
Inventory rating57 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length30 ft (9.1 m)
Longest span29 ft (8.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2019)
Projected traffic140 by 2039
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 149th Ave. SW over Creek built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1991.

What condition is 149th Ave. SW over 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 149th Ave. SW over Creek carry?

About 140 vehicles per day (2019 count), of which roughly 13% are trucks.

How long is 149th Ave. SW over Creek?

The structure is 30 ft (9.1 m) long with a longest span of 29 ft (8.8 m) and a deck 32 ft wide.

Who owns 149th Ave. SW over Creek?

It is owned by the County Highway Agency.