US Bridges

County Highway over Antelope Creek

Fair

Richland County, North Dakota · 1 East of Galchutt · Structure no. 000000039124170

Built
1987
38 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
43 ft
3 main spans
Daily traffic
325
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Antelope Creek is a concrete culvert carrying County Highway over Antelope Creek in Richland County, North Dakota. It was built in 1987, so it is 38 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 6 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 325 vehicles a day, roughly 14% of them trucks, projected to reach 325 by 2038. The structure is 43 ft (13.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty Highway
CrossesAntelope Creek
Location1 East of Galchutt
RouteCounty Highway 3918
CountyRichland County
StateNorth Dakota
Coordinates46.38402, -96.7805
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 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 evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.1 US tons
Inventory rating35.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length43 ft (13.1 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic325 (2018)
Projected traffic325 by 2038
Trucks14%
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 1987, making it 38 years old in 2025.

What condition is County Highway over Antelope Creek 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 July 2024.

How much traffic does County Highway over Antelope Creek carry?

About 325 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is County Highway over Antelope Creek?

The structure is 43 ft (13.1 m) long with a longest span of 14 ft (4.3 m).

Who owns County Highway over Antelope Creek?

It is owned by the County Highway Agency.