US Bridges

Ward County 6 over Souris River

Good

Ward County, North Dakota · Lake Darling Dam (dam 83) · Structure no. 000062680-00608

Built
1997
28 years old
Condition
Good
inspected July 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
257 ft
5 main spans
Daily traffic
300
2022 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

Ward County 6 over Souris River is a prestressed concrete box beam or girders - multiple carrying Ward County 6 over Souris River in Ward County, North Dakota. It was built in 1997, so it is 28 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 300 vehicles a day, roughly 12% of them trucks, projected to reach 400 by 2042. The structure is 257 ft (78.3 m) long and 31 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesWard County 6
CrossesSouris River
LocationLake Darling Dam (dam 83)
RouteFederal Lands Road 0
Coordinates48.45817, -101.58017
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating24 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length257 ft (78.3 m)
Longest span53 ft (16.2 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic300 (2022)
Projected traffic400 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
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 Ward County 6 over Souris River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Ward County 6 over Souris River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2022.

How much traffic does Ward County 6 over Souris River carry?

About 300 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Ward County 6 over Souris River?

The structure is 257 ft (78.3 m) long with a longest span of 53 ft (16.2 m) and a deck 31 ft wide.

Who owns Ward County 6 over Souris River?

It is owned by the Bureau of Fish and Wildlife.