US Bridges

County Highway over Forest River

Good

Walsh County, North Dakota · 11 East 4 South · Structure no. 000000050154130

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
92 ft
2 main spans
Daily traffic
100
2017 count
Owner
County
County Highway Agency

About this bridge

County Highway over Forest River is a prestressed concrete continuous box beam or girders - single or spread carrying County Highway over Forest River in Walsh County, North Dakota. It was built in 1986, so it is 39 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 100 vehicles a day, roughly 12% of them trucks, projected to reach 100 by 2037. The structure is 92 ft (28 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesForest River
Location11 East 4 South
RouteCounty Highway 0
Coordinates48.35307, -97.15087
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating34.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length92 ft (28 m)
Longest span42 ft (12.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2017)
Projected traffic100 by 2037
Trucks12%
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 Forest River built?

It was built in 1986, making it 39 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 October 2024.

How much traffic does County Highway over Forest River carry?

About 100 vehicles per day (2017 count), of which roughly 12% are trucks.

How long is County Highway over Forest River?

The structure is 92 ft (28 m) long with a longest span of 42 ft (12.9 m) and a deck 30 ft wide.

Who owns County Highway over Forest River?

It is owned by the County Highway Agency.