US Bridges

50th ST SW over Plum Creek

Good

Stark County, North Dakota · 6 East of Lefor · Structure no. 000000045139220

Built
1992
33 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
55
2016 count
Owner
County
County Highway Agency

About this bridge

50th ST SW over Plum Creek is a concrete culvert carrying 50th ST SW over Plum Creek in Stark County, North Dakota. It was built in 1992, so it is 33 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 55 vehicles a day, projected to reach 75 by 2036. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Carries50th ST SW
CrossesPlum Creek
Location6 East of Lefor
RouteCounty Highway 4524
Coordinates46.68823, -102.42843
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 25 or greater
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic55 (2016)
Projected traffic75 by 2036
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 50th ST SW over Plum Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is 50th ST SW over Plum 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 August 2024.

How much traffic does 50th ST SW over Plum Creek carry?

About 55 vehicles per day (2016 count).

How long is 50th ST SW over Plum Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns 50th ST SW over Plum Creek?

It is owned by the County Highway Agency.