US Bridges

County Highway over Sheyenne River

Fair

Cass County, North Dakota · 1 West of Harwood · Structure no. 000000009139180

Built
1981
44 years old
Condition
Fair
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
375 ft
5 main spans
Daily traffic
700
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Sheyenne River is a prestressed concrete box beam or girders - single or spread carrying County Highway over Sheyenne River in Cass County, North Dakota. It was built in 1981, so it is 44 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 700 vehicles a day, roughly 11% of them trucks, projected to reach 700 by 2039. The structure is 375 ft (114.3 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesSheyenne River
Location1 West of Harwood
RouteCounty Highway 949
CountyCass County
StateNorth Dakota
Coordinates46.97721, -96.89257
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40.2 US tons
Inventory rating24.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length375 ft (114.3 m)
Longest span74 ft (22.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2019)
Projected traffic700 by 2039
Trucks11%
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 Highway over Sheyenne River built?

It was built in 1981, making it 44 years old in 2025.

What condition is County Highway over Sheyenne River 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 April 2023.

How much traffic does County Highway over Sheyenne River carry?

About 700 vehicles per day (2019 count), of which roughly 11% are trucks.

How long is County Highway over Sheyenne River?

The structure is 375 ft (114.3 m) long with a longest span of 74 ft (22.6 m) and a deck 43 ft wide.

Who owns County Highway over Sheyenne River?

It is owned by the County Highway Agency.