US Bridges

County HWY # 10 over Branch of Maple River

Good

Cass County, North Dakota · Tower City · Structure no. 000000009102220

Built
2017
8 years old
Condition
Good
inspected August 2021
Type
Culvert
Concrete
Length
28 ft
3 main spans
Daily traffic
300
2018 count
Owner
County
County Highway Agency

About this bridge

County HWY # 10 over Branch of Maple River is a concrete culvert carrying County HWY # 10 over Branch of Maple River in Cass County, North Dakota. It was built in 2017, so it is 8 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 300 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 HWY # 10
CrossesBranch of Maple River
LocationTower City
RouteCounty Highway 0
Coordinates46.91999, -97.66566
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 inspectionAugust 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 rating110.1 US tons
Inventory rating90.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length28 ft (8.5 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 traffic300 (2018)
Projected traffic300 by 2038
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 HWY # 10 over Branch of Maple River built?

It was built in 2017, making it 8 years old in 2025.

What condition is County HWY # 10 over Branch of 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 2021.

How much traffic does County HWY # 10 over Branch of Maple River carry?

About 300 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is County HWY # 10 over Branch of Maple River?

The structure is 28 ft (8.5 m) long with a longest span of 8 ft (2.4 m).

Who owns County HWY # 10 over Branch of Maple River?

It is owned by the County Highway Agency.