US Bridges

US Highway 12 over Buffalo Creek

Fair

Bowman County, North Dakota · 5 West of Scranton · Structure no. 0012041350

Built
1993
32 years old, rebuilt 2005
Condition
Fair
inspected July 2022
Type
Culvert
Concrete
Length
28 ft
2 main spans
Daily traffic
1,000
2019 count
Owner
State
State Highway Agency

About this bridge

US Highway 12 over Buffalo Creek is a concrete culvert carrying US Highway 12 over Buffalo Creek in Bowman County, North Dakota. It was built in 1993 and reconstructed in 2005, so it is 32 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,000 vehicles a day, roughly 16% of them trucks, projected to reach 1,320 by 2039. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 55.3 mi (89 km).

CarriesUS Highway 12
CrossesBuffalo Creek
Location5 West of Scranton
RouteU.S. Route 12
Coordinates46.17603, -103.24052
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.2 US tons
Inventory rating39.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2019)
Projected traffic1,320 by 2039
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed55.3 mi (89 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNo navigation control on waterway

Frequently asked questions

When was US Highway 12 over Buffalo Creek built?

It was built in 1993, making it 32 years old in 2025. It was reconstructed in 2005.

What condition is US Highway 12 over Buffalo Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2022.

How much traffic does US Highway 12 over Buffalo Creek carry?

About 1,000 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is US Highway 12 over Buffalo Creek?

The structure is 28 ft (8.5 m) long with a longest span of 12 ft (3.7 m).

Who owns US Highway 12 over Buffalo Creek?

It is owned by the State Highway Agency.