US Bridges

County Highway over Maple River

Good

Cass County, North Dakota · 6 East 6 South Alice · Structure no. 000000009113391

Built
2009
16 years old
Condition
Good
inspected July 2021
Type
Culvert
Concrete
Length
46 ft
3 main spans
Daily traffic
75
2017 count
Owner
County
County Highway Agency

About this bridge

County Highway over Maple River is a concrete culvert carrying County Highway over Maple River in Cass County, North Dakota. It was built in 2009, so it is 16 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 75 vehicles a day, projected to reach 75 by 2037. The structure is 46 ft (14 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesMaple River
Location6 East 6 South Alice
RouteCounty Highway 0
Coordinates46.67927, -97.43036
Functional classRural Local

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 inspectionJuly 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 rating110.1 US tons
Inventory rating99.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length46 ft (14 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2017)
Projected traffic75 by 2037
Trucks—
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 Maple River built?

It was built in 2009, making it 16 years old in 2025.

What condition is County Highway over Maple River 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 July 2021.

How much traffic does County Highway over Maple River carry?

About 75 vehicles per day (2017 count).

How long is County Highway over Maple River?

The structure is 46 ft (14 m) long with a longest span of 14 ft (4.3 m).

Who owns County Highway over Maple River?

It is owned by the County Highway Agency.