US Bridges

County Highway over Antelope Creek

Good

Richland County, North Dakota · 3 West 1 South of Dwight · Structure no. 000000039123243

Built
2017
8 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
134 ft
3 main spans
Daily traffic
20
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Antelope Creek is a prestressed concrete box beam or girders - single or spread carrying County Highway over Antelope Creek in Richland County, North Dakota. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, projected to reach 20 by 2038. The structure is 134 ft (40.8 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesAntelope Creek
Location3 West 1 South of Dwight
RouteCounty Highway 0
CountyRichland County
StateNorth Dakota
Coordinates46.28939, -96.79966
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.6 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length134 ft (40.8 m)
Longest span48 ft (14.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic20 by 2038
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$243,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Antelope Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is County Highway over Antelope Creek 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 2024.

How much traffic does County Highway over Antelope Creek carry?

About 20 vehicles per day (2018 count).

How long is County Highway over Antelope Creek?

The structure is 134 ft (40.8 m) long with a longest span of 48 ft (14.5 m) and a deck 30 ft wide.

Who owns County Highway over Antelope Creek?

It is owned by the County Highway Agency.