US Bridges

County Highway over Forest River

Fair

Walsh County, North Dakota · 8 East 8 South of Grafton · Structure no. 000000050152171

Built
1962
63 years old, rebuilt 2006
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
95 ft
2 main spans
Daily traffic
455
2017 count
Owner
County
County Highway Agency

About this bridge

County Highway over Forest River is a prestressed concrete box beam or girders - multiple carrying County Highway over Forest River in Walsh County, North Dakota. It was built in 1962 and reconstructed in 2006, so it is 63 years old, older than the North Dakota average of 48.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 455 vehicles a day, roughly 12% of them trucks, projected to reach 350 by 2037. The structure is 95 ft (29 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesCounty Highway
CrossesForest River
Location8 East 8 South of Grafton
RouteCounty Highway 5018
Coordinates48.29532, -97.19948
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating110.1 US tons
Inventory rating59.1 US tons

Structure

MaterialPrestressed Concrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length95 ft (29 m)
Longest span68 ft (20.7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic455 (2017)
Projected traffic350 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 1962, making it 63 years old in 2025. It was reconstructed in 2006.

What condition is County Highway over Forest River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.

How much traffic does County Highway over Forest River carry?

About 455 vehicles per day (2017 count), of which roughly 12% are trucks.

How long is County Highway over Forest River?

The structure is 95 ft (29 m) long with a longest span of 68 ft (20.7 m) and a deck 33 ft wide.

Who owns County Highway over Forest River?

It is owned by the County Highway Agency.