US Bridges

County Highway over County Drain No. 20

Good

Richland County, North Dakota · 4 East of Great Bend · Structure no. 000000039127330

Built
1990
35 years old
Condition
Good
inspected November 2021
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
255
2018 count
Owner
County
County Highway Agency

About this bridge

County Highway over County Drain No. 20 is a concrete culvert carrying County Highway over County Drain No. 20 in Richland County, North Dakota. It was built in 1990, so it is 35 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 255 vehicles a day, roughly 14% of them trucks, projected to reach 365 by 2038. The structure is 28 ft (8.5 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesCounty Drain No. 20
Location4 East of Great Bend
RouteCounty Highway 3934
Coordinates46.15263, -96.73251
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 protection7 GoodSome minor problems.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72 US tons
Inventory rating43.2 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic255 (2018)
Projected traffic365 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 County Drain No. 20 built?

It was built in 1990, making it 35 years old in 2025.

What condition is County Highway over County Drain No. 20 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 County Drain No. 20 carry?

About 255 vehicles per day (2018 count), of which roughly 14% are trucks.

How long is County Highway over County Drain No. 20?

The structure is 28 ft (8.5 m) long with a longest span of 9 ft (2.7 m).

Who owns County Highway over County Drain No. 20?

It is owned by the County Highway Agency.