US Bridges

County Highway over Souris River

Fair

Renville County, North Dakota · 6 North of Tolley · Structure no. 000000038110130

Built
1965
60 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
90 ft
2 main spans
Daily traffic
80
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Souris River is a prestressed concrete box beam or girders - multiple carrying County Highway over Souris River in Renville County, North Dakota. It was built in 1965, so it is 60 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 80 vehicles a day, projected to reach 40 by 2038. The structure is 90 ft (27.4 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Highway
CrossesSouris River
Location6 North of Tolley
RouteCounty Highway 3809
CountyRenville County
StateNorth Dakota
Coordinates48.8084, -101.8254
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating61.3 US tons
Inventory rating36.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length90 ft (27.4 m)
Longest span43 ft (13.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic80 (2018)
Projected traffic40 by 2038
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$102,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Souris River built?

It was built in 1965, making it 60 years old in 2025.

What condition is County Highway over Souris 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 September 2024.

How much traffic does County Highway over Souris River carry?

About 80 vehicles per day (2018 count).

How long is County Highway over Souris River?

The structure is 90 ft (27.4 m) long with a longest span of 43 ft (13.1 m) and a deck 30 ft wide.

Who owns County Highway over Souris River?

It is owned by the County Highway Agency.