US Bridges

Interstate 29 over County Drain 2

Good

Richland County, North Dakota · 10 South of Nd 46 · Structure no. 0029038039

Built
1973
52 years old, rebuilt 2019
Condition
Good
inspected May 2021
Type
Culvert
Concrete
Length
33 ft
3 main spans
Daily traffic
5,600
2019 count
Owner
State
State Highway Agency

About this bridge

Interstate 29 over County Drain 2 is a concrete culvert carrying Interstate 29 over County Drain 2 in Richland County, North Dakota. It was built in 1973 and reconstructed in 2019, so it is 52 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 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 5,600 vehicles a day, roughly 21% of them trucks, projected to reach 5,600 by 2039. The structure is 33 ft (10.1 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesInterstate 29
CrossesCounty Drain 2
Location10 South of Nd 46
RouteInterstate 29
Coordinates46.48532, -96.83137
Functional classRural Principal Arterial - Interstate

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 inspectionMay 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.8 US tons
Inventory rating37 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length33 ft (10.1 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 traffic5,600 (2019)
Projected traffic5,600 by 2039
Trucks21%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Interstate 29 over County Drain 2 built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2019.

What condition is Interstate 29 over County Drain 2 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 May 2021.

How much traffic does Interstate 29 over County Drain 2 carry?

About 5,600 vehicles per day (2019 count), of which roughly 21% are trucks.

How long is Interstate 29 over County Drain 2?

The structure is 33 ft (10.1 m) long with a longest span of 10 ft (3 m).

Who owns Interstate 29 over County Drain 2?

It is owned by the State Highway Agency.