US Bridges

I-94 Business Loop over Heart River

Good

Morton County, North Dakota · 4 West of Nd 6 · Structure no. 0094912032

Built
2011
14 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
349 ft
3 main spans
Daily traffic
1,475
2019 count
Owner
State
State Highway Agency

About this bridge

I-94 Business Loop over Heart River is a prestressed concrete stringer/multi-beam or girder carrying I-94 Business Loop over Heart River in Morton County, North Dakota. It was built in 2011, so it is 14 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,475 vehicles a day, roughly 12% of them trucks, projected to reach 2,570 by 2039. The structure is 349 ft (106.4 m) long and 43 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesI-94 Business Loop
CrossesHeart River
Location4 West of Nd 6
RouteState Highway 94
Coordinates46.83358, -100.97391
Functional classRural Principal Arterial - Other

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.1 US tons
Inventory rating37.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length349 ft (106.4 m)
Longest span117 ft (35.6 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,475 (2019)
Projected traffic2,570 by 2039
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 I-94 Business Loop over Heart River built?

It was built in 2011, making it 14 years old in 2025.

What condition is I-94 Business Loop over Heart River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does I-94 Business Loop over Heart River carry?

About 1,475 vehicles per day (2019 count), of which roughly 12% are trucks.

How long is I-94 Business Loop over Heart River?

The structure is 349 ft (106.4 m) long with a longest span of 117 ft (35.6 m) and a deck 43 ft wide.

Who owns I-94 Business Loop over Heart River?

It is owned by the State Highway Agency.