US Bridges

County Highway over Des Lacs River

Good

Ward County, North Dakota · City of Carpio · Structure no. 000000051125240

Built
2010
15 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
100 ft
2 main spans
Daily traffic
360
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Des Lacs River is a prestressed concrete continuous box beam or girders - single or spread carrying County Highway over Des Lacs River in Ward County, North Dakota. It was built in 2010, so it is 15 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 360 vehicles a day, roughly 8% of them trucks, projected to reach 365 by 2039. The structure is 100 ft (30.5 m) long and 38 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesCounty Highway
CrossesDes Lacs River
LocationCity of Carpio
RouteCounty Highway 5126
CountyWard County
StateNorth Dakota
Coordinates48.44494, -101.7119
Functional classRural Major Collector

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.5 US tons
Inventory rating46 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length100 ft (30.5 m)
Longest span50 ft (15.2 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic360 (2019)
Projected traffic365 by 2039
Trucks8%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Des Lacs River built?

It was built in 2010, making it 15 years old in 2025.

What condition is County Highway over Des Lacs 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 June 2023.

How much traffic does County Highway over Des Lacs River carry?

About 360 vehicles per day (2019 count), of which roughly 8% are trucks.

How long is County Highway over Des Lacs River?

The structure is 100 ft (30.5 m) long with a longest span of 50 ft (15.2 m) and a deck 38 ft wide.

Who owns County Highway over Des Lacs River?

It is owned by the County Highway Agency.