US Bridges

Interstate 194 over Business Loop 94

Fair

Morton County, North Dakota · 2 East of Mandan · Structure no. 0094920395

Built
1981
44 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
257 ft
3 main spans
Daily traffic
18,200
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 194 over Business Loop 94 is a steel stringer/multi-beam or girder carrying Interstate 194 over Business Loop 94 in Morton 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 18,200 vehicles a day, roughly 7% of them trucks, projected to reach 19,800 by 2039. The structure is 257 ft (78.3 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesInterstate 194
CrossesBusiness Loop 94
Location2 East of Mandan
RouteInterstate 194
CountyMorton County
StateNorth Dakota
Coordinates46.80845, -100.82899
Functional classUrban Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.3 US tons
Inventory rating22.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span104 ft (31.7 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,200 (2019)
Projected traffic19,800 by 2039
Trucks7%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Interstate 194 over Business Loop 94 built?

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

What condition is Interstate 194 over Business Loop 94 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 2024.

How much traffic does Interstate 194 over Business Loop 94 carry?

About 18,200 vehicles per day (2019 count), of which roughly 7% are trucks.

How long is Interstate 194 over Business Loop 94?

The structure is 257 ft (78.3 m) long with a longest span of 104 ft (31.7 m) and a deck 27 ft wide.

Who owns Interstate 194 over Business Loop 94?

It is owned by the State Highway Agency.