US Bridges

County Highway over Antelope Creek

Good

Richland County, North Dakota · 3 East of Galchutt · Structure no. 000000039125172

Built
1999
26 years old
Condition
Good
inspected July 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
162 ft
3 main spans
Daily traffic
400
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Antelope Creek is a prestressed concrete continuous box beam or girders - single or spread carrying County Highway over Antelope Creek in Richland County, North Dakota. It was built in 1999, so it is 26 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 400 vehicles a day, roughly 8% of them trucks, projected to reach 445 by 2038. The structure is 162 ft (49.4 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesAntelope Creek
Location3 East of Galchutt
RouteCounty Highway 3918
Coordinates46.38403, -96.76383
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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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 geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating73.2 US tons
Inventory rating43.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length162 ft (49.4 m)
Longest span54 ft (16.5 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2018)
Projected traffic445 by 2038
Trucks8%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Antelope Creek built?

It was built in 1999, making it 26 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 400 vehicles per day (2018 count), of which roughly 8% are trucks.

How long is County Highway over Antelope Creek?

The structure is 162 ft (49.4 m) long with a longest span of 54 ft (16.5 m) and a deck 31 ft wide.

Who owns County Highway over Antelope Creek?

It is owned by the County Highway Agency.