US Bridges

County Highway over Antelope Creek

FairPosted for load

Richland County, North Dakota · 4 West 4 North Mooreton · Structure no. 000000039116210

Built
1977
48 years old
Condition
Fair
inspected July 2024
Type
Culvert
Wood or Timber
Length
33 ft
3 main spans
Daily traffic
75
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Antelope Creek is a wood or timber culvert carrying County Highway over Antelope Creek in Richland County, North Dakota. It was built in 1977, so it is 48 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, projected to reach 75 by 2039. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesAntelope Creek
Location4 West 4 North Mooreton
RouteCounty Highway 0
CountyRichland County
StateNorth Dakota
Coordinates46.32584, -96.94601
Functional classRural Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating69.1 US tons
Inventory rating14 US tons

Structure

Structure typeCulvert
MaterialWood or Timber
DeckNot applicable
Main spans3
Design loadH 20
Structure length33 ft (10.1 m)
Longest span11 ft (3.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2019)
Projected traffic75 by 2039
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 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 1977, making it 48 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 75 vehicles per day (2019 count).

How long is County Highway over Antelope Creek?

The structure is 33 ft (10.1 m) long with a longest span of 11 ft (3.4 m).

Who owns County Highway over Antelope Creek?

It is owned by the County Highway Agency.