US Bridges

County Highway over County Drain 23

Fair

Cass County, North Dakota · 1 South of Gardner · Structure no. 000000009135080

Built
1937
88 years old
Condition
Fair
inspected September 2023
Type
Culvert
Concrete
Length
24 ft
3 main spans
Daily traffic
260
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over County Drain 23 is a concrete culvert carrying County Highway over County Drain 23 in Cass County, North Dakota. It was built in 1937, so it is 88 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 260 vehicles a day, roughly 10% of them trucks, projected to reach 260 by 2039. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesCounty Drain 23
Location1 South of Gardner
RouteCounty Highway 945
CountyCass County
StateNorth Dakota
Coordinates47.13719, -96.96344
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length24 ft (7.3 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic260 (2019)
Projected traffic260 by 2039
Trucks10%
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 23 built?

It was built in 1937, making it 88 years old in 2025.

What condition is County Highway over County Drain 23 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 September 2023.

How much traffic does County Highway over County Drain 23 carry?

About 260 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is County Highway over County Drain 23?

The structure is 24 ft (7.3 m) long with a longest span of 8 ft (2.4 m).

Who owns County Highway over County Drain 23?

It is owned by the County Highway Agency.