US Bridges

Irrft County Hiway over Sheyenne River

Poor

Benson County, North Dakota · 1 East 8 So Fort Totten · Structure no. 000000003141350

Built
1976
49 years old
Condition
Poor
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
35
2018 count
Owner
County
County Highway Agency

About this bridge

Irrft County Hiway over Sheyenne River is a prestressed concrete box beam or girders - single or spread carrying Irrft County Hiway over Sheyenne River in Benson County, North Dakota. It was built in 1976, so it is 49 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 35 vehicles a day, projected to reach 35 by 2038. The structure is 60 ft (18.3 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesIrrft County Hiway
CrossesSheyenne River
Location1 East 8 So Fort Totten
RouteCounty Highway 0
Coordinates47.86366, -98.96522
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40 US tons
Inventory rating21.5 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length60 ft (18.3 m)
Longest span57 ft (17.4 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2018)
Projected traffic35 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 1976, making it 49 years old in 2025.

What condition is Irrft County Hiway over Sheyenne River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

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

About 35 vehicles per day (2018 count).

How long is Irrft County Hiway over Sheyenne River?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.4 m) and a deck 30 ft wide.

Who owns Irrft County Hiway over Sheyenne River?

It is owned by the County Highway Agency.