US Bridges

Irrft County Hiway over Sheyenne River

Fair

Eddy County, North Dakota · 18 E 4 N New Rockford · Structure no. 000000014122070

Built
1980
45 years old
Condition
Fair
inspected October 2023
Type
Tee Beam
Prestressed Concrete
Length
98 ft
2 main spans
Daily traffic
10
2019 count
Owner
County
County Highway Agency

About this bridge

Irrft County Hiway over Sheyenne River is a prestressed concrete tee beam carrying Irrft County Hiway over Sheyenne River in Eddy County, North Dakota. It was built in 1980, so it is 45 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 10 vehicles a day, projected to reach 10 by 2039. The structure is 98 ft (29.9 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesIrrft County Hiway
CrossesSheyenne River
Location18 E 4 N New Rockford
RouteCounty Highway 0
CountyEddy County
StateNorth Dakota
Coordinates47.75029, -98.84007
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating57.1 US tons
Inventory rating31.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadH 20
Structure length98 ft (29.9 m)
Longest span47 ft (14.3 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2019)
Projected traffic10 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 Irrft County Hiway over Sheyenne River built?

It was built in 1980, making it 45 years old in 2025.

What condition is Irrft County Hiway 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 October 2023.

How much traffic does Irrft County Hiway over Sheyenne River carry?

About 10 vehicles per day (2019 count).

How long is Irrft County Hiway over Sheyenne River?

The structure is 98 ft (29.9 m) long with a longest span of 47 ft (14.3 m) and a deck 30 ft wide.

Who owns Irrft County Hiway over Sheyenne River?

It is owned by the County Highway Agency.