US Bridges

116th Ave SW over Heart River

Fair

Stark County, North Dakota · 5 West 2 South Dickinson · Structure no. 000000045116111

Built
1983
42 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
140 ft
2 main spans
Daily traffic
130
2018 count
Owner
County
County Highway Agency

About this bridge

116th Ave SW over Heart River is a prestressed concrete continuous box beam or girders - single or spread carrying 116th Ave SW over Heart River in Stark County, North Dakota. It was built in 1983, so it is 42 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 130 vehicles a day, roughly 13% of them trucks, projected to reach 130 by 2038. The structure is 140 ft (42.7 m) long and 33 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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Carries116th Ave SW
CrossesHeart River
Location5 West 2 South Dickinson
RouteCounty Highway 4517
CountyStark County
StateNorth Dakota
Coordinates46.85391, -102.89421
Functional classRural Major Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length140 ft (42.7 m)
Longest span68 ft (20.7 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic130 (2018)
Projected traffic130 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 116th Ave SW over Heart River built?

It was built in 1983, making it 42 years old in 2025.

What condition is 116th Ave SW over Heart 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 August 2024.

How much traffic does 116th Ave SW over Heart River carry?

About 130 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is 116th Ave SW over Heart River?

The structure is 140 ft (42.7 m) long with a longest span of 68 ft (20.7 m) and a deck 33 ft wide.

Who owns 116th Ave SW over Heart River?

It is owned by the County Highway Agency.