US Bridges

35th ST SW over Heart River

Fair

Stark County, North Dakota · 1 North of Belfield · Structure no. 000000045102070

Built
1964
61 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
25 ft
3 main spans
Daily traffic
50
2016 count
Owner
County
County Highway Agency

About this bridge

35th ST SW over Heart River is a concrete culvert carrying 35th ST SW over Heart River in Stark County, North Dakota. It was built in 1964, so it is 61 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 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 50 vehicles a day, projected to reach 50 by 2036. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Carries35th ST SW
CrossesHeart River
Location1 North of Belfield
RouteCounty Highway 0
Coordinates46.90449, -103.20065
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2016)
Projected traffic50 by 2036
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 35th ST SW over Heart River built?

It was built in 1964, making it 61 years old in 2025.

What condition is 35th ST 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 35th ST SW over Heart River carry?

About 50 vehicles per day (2016 count).

How long is 35th ST SW over Heart River?

The structure is 25 ft (7.6 m) long with a longest span of 8 ft (2.4 m).

Who owns 35th ST SW over Heart River?

It is owned by the County Highway Agency.