US Bridges

County Highway over Maple River

Good

Cass County, North Dakota · 4 West 3 North of Alice · Structure no. 000000009104300

Built
2014
11 years old
Condition
Good
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
124 ft
3 main spans
Daily traffic
20
2019 count
Owner
County
County Highway Agency

About this bridge

County Highway over Maple River is a prestressed concrete box beam or girders - single or spread carrying County Highway over Maple River in Cass County, North Dakota. It was built in 2014, so it is 11 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 20 vehicles a day, projected to reach 20 by 2039. The structure is 124 ft (37.8 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesCounty Highway
CrossesMaple River
Location4 West 3 North of Alice
RouteCounty Highway 0
CountyCass County
StateNorth Dakota
Coordinates46.80373, -97.62754
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating45.7 US tons

Structure

Structure typeBox Beam or Girders - Single or Spread
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length124 ft (37.8 m)
Longest span42 ft (12.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2019)
Projected traffic20 by 2039
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$272,000
NavigationNo navigation control on waterway

Frequently asked questions

When was County Highway over Maple River built?

It was built in 2014, making it 11 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 August 2023.

How much traffic does County Highway over Maple River carry?

About 20 vehicles per day (2019 count).

How long is County Highway over Maple River?

The structure is 124 ft (37.8 m) long with a longest span of 42 ft (12.7 m) and a deck 30 ft wide.

Who owns County Highway over Maple River?

It is owned by the County Highway Agency.