US Bridges

County Highway over Forest River

Good

Walsh County, North Dakota · 1 North of Forest River · Structure no. 000000050139221

Built
2016
9 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete
Length
96 ft
3 main spans
Daily traffic
420
2016 count
Owner
County
County Highway Agency

About this bridge

County Highway over Forest River is a concrete slab carrying County Highway over Forest River in Walsh County, North Dakota. It was built in 2016, so it is 9 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 420 vehicles a day, roughly 12% of them trucks, projected to reach 250 by 2036. The structure is 96 ft (29.3 m) long and 30 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesCounty Highway
CrossesForest River
Location1 North of Forest River
RouteCounty Highway 5039
CountyWalsh County
StateNorth Dakota
Coordinates48.22624, -97.47042
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.5 US tons
Inventory rating36.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length96 ft (29.3 m)
Longest span35 ft (10.7 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic420 (2016)
Projected traffic250 by 2036
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Forest River built?

It was built in 2016, making it 9 years old in 2025.

What condition is County Highway over Forest 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 2024.

How much traffic does County Highway over Forest River carry?

About 420 vehicles per day (2016 count), of which roughly 12% are trucks.

How long is County Highway over Forest River?

The structure is 96 ft (29.3 m) long with a longest span of 35 ft (10.7 m) and a deck 30 ft wide.

Who owns County Highway over Forest River?

It is owned by the County Highway Agency.