US Bridges

County Highway over Crooked Creek

Good

Sargent County, North Dakota · 6 South 1 East Milnor · Structure no. 000000041127080

Built
2013
12 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
55
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over Crooked Creek is a concrete culvert carrying County Highway over Crooked Creek in Sargent County, North Dakota. It was built in 2013, so it is 12 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, roughly 13% of them trucks, projected to reach 55 by 2038. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 9.9 mi (16 km).

CarriesCounty Highway
CrossesCrooked Creek
Location6 South 1 East Milnor
RouteCounty Highway 4129
Coordinates46.16684, -97.45877
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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.4 US tons
Inventory rating56.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHL 93
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 (2018)
Projected traffic55 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Crooked Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is County Highway over Crooked 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 November 2021.

How much traffic does County Highway over Crooked Creek carry?

About 55 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is County Highway over Crooked Creek?

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

Who owns County Highway over Crooked Creek?

It is owned by the County Highway Agency.