US Bridges

County Highway over Souris River

Fair

Renville County, North Dakota · 4 North 2 East Tolley · Structure no. 000000038111140

Built
1977
48 years old
Condition
Fair
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
149 ft
3 main spans
Daily traffic
150
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Souris River is a prestressed concrete continuous box beam or girders - single or spread carrying County Highway over Souris River in Renville County, North Dakota. It was built in 1977, so it is 48 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 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 150 vehicles a day, roughly 14% of them trucks, projected to reach 150 by 2038. The structure is 149 ft (45.4 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesCounty Highway
CrossesSouris River
Location4 North 2 East Tolley
RouteCounty Highway 0
CountyRenville County
StateNorth Dakota
Coordinates48.79287, -101.79541
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36.4 US tons
Inventory rating19.2 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length149 ft (45.4 m)
Longest span47 ft (14.3 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2018)
Projected traffic150 by 2038
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 County Highway over Souris River built?

It was built in 1977, making it 48 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 150 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is County Highway over Souris River?

The structure is 149 ft (45.4 m) long with a longest span of 47 ft (14.3 m) and a deck 26 ft wide.

Who owns County Highway over Souris River?

It is owned by the County Highway Agency.