US Bridges

County Highway over Antelope Creek

Fair

Richland County, North Dakota · 1 North of Mooreton · Structure no. 000000039119241

Built
1954
71 years old
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
37
2022 count
Owner
County
County Highway Agency

About this bridge

County Highway over Antelope Creek is a steel stringer/multi-beam or girder carrying County Highway over Antelope Creek in Richland County, North Dakota. It was built in 1954, so it is 71 years old, older 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.

It carries about 37 vehicles a day, projected to reach 50 by 2042. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesAntelope Creek
Location1 North of Mooreton
RouteCounty Highway 0
CountyRichland County
StateNorth Dakota
Coordinates46.28241, -96.88229
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating66.9 US tons
Inventory rating40.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span41 ft (12.5 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37 (2022)
Projected traffic50 by 2042
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 1954, making it 71 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 37 vehicles per day (2022 count).

How long is County Highway over Antelope Creek?

The structure is 45 ft (13.7 m) long with a longest span of 41 ft (12.5 m) and a deck 28 ft wide.

Who owns County Highway over Antelope Creek?

It is owned by the County Highway Agency.