US Bridges

County Highway over I-94/DENGATE Interchange

Fair

Morton County, North Dakota · 7 East of Nd 49 · Structure no. 0094117197

Built
1960
65 years old, rebuilt 1986
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
220 ft
4 main spans
Daily traffic
55
2019 count
Owner
State
State Highway Agency

About this bridge

County Highway over I-94/DENGATE Interchange is a prestressed concrete continuous stringer/multi-beam or girder carrying County Highway over I-94/DENGATE Interchange in Morton County, North Dakota. It was built in 1960 and reconstructed in 1986, so it is 65 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 fair condition with a lowest component rating of 5 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 55 vehicles a day, projected to reach 55 by 2039. The structure is 220 ft (67.1 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesCounty Highway
CrossesI-94/DENGATE Interchange
Location7 East of Nd 49
RouteCounty Highway 0
CountyMorton County
StateNorth Dakota
Coordinates46.86209, -101.63776
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 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
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.2 US tons
Inventory rating42.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length220 ft (67.1 m)
Longest span65 ft (19.8 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2019)
Projected traffic55 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$462,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Highway over I-94/DENGATE Interchange built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1986.

What condition is County Highway over I-94/DENGATE Interchange 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 I-94/DENGATE Interchange carry?

About 55 vehicles per day (2019 count).

How long is County Highway over I-94/DENGATE Interchange?

The structure is 220 ft (67.1 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.

Who owns County Highway over I-94/DENGATE Interchange?

It is owned by the State Highway Agency.