US Bridges

County Road over Coulee

Fair

Grand Forks County, North Dakota · 6 West 5 South Inkster · Structure no. 000000018106080

Built
1989
36 years old
Condition
Fair
inspected September 2023
Type
Tee Beam
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
25
2019 count
Owner
County
County Highway Agency

About this bridge

County Road over Coulee is a prestressed concrete tee beam carrying County Road over Coulee in Grand Forks County, North Dakota. It was built in 1989, so it is 36 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 25 vehicles a day, projected to reach 25 by 2039. The structure is 25 ft (7.6 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Road
CrossesCoulee
Location6 West 5 South Inkster
RouteCounty Highway 0
CountyGrand Forks County
StateNorth Dakota
Coordinates48.08346, -97.77374
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.2 US tons
Inventory rating38.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2019)
Projected traffic25 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 over Coulee built?

It was built in 1989, making it 36 years old in 2025.

What condition is County Road over Coulee 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 September 2023.

How much traffic does County Road over Coulee carry?

About 25 vehicles per day (2019 count).

How long is County Road over Coulee?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 28 ft wide.

Who owns County Road over Coulee?

It is owned by the County Highway Agency.