US Bridges

County Hiway 1112 over James River

Good

Dickey County, North Dakota · 1 West of Oakes · Structure no. 000000011143100

Built
1986
39 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
168 ft
3 main spans
Daily traffic
420
2020 count
Owner
County
County Highway Agency

About this bridge

County Hiway 1112 over James River is a prestressed concrete continuous box beam or girders - single or spread carrying County Hiway 1112 over James River in Dickey 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 420 vehicles a day, roughly 12% of them trucks, projected to reach 800 by 2040. The structure is 168 ft (51.2 m) long and 34 ft wide. If it were closed, the detour would be 13 mi (21 km).

CarriesCounty Hiway 1112
CrossesJames River
Location1 West of Oakes
RouteCounty Highway 1112
Coordinates46.13896, -98.11517
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
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 alignment8: Equal to present desirable criteria
Operating rating48.8 US tons
Inventory rating20.3 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length168 ft (51.2 m)
Longest span57 ft (17.4 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic420 (2020)
Projected traffic800 by 2040
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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 Hiway 1112 over James River built?

It was built in 1986, making it 39 years old in 2025.

What condition is County Hiway 1112 over James 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 April 2023.

How much traffic does County Hiway 1112 over James River carry?

About 420 vehicles per day (2020 count), of which roughly 12% are trucks.

How long is County Hiway 1112 over James River?

The structure is 168 ft (51.2 m) long with a longest span of 57 ft (17.4 m) and a deck 34 ft wide.

Who owns County Hiway 1112 over James River?

It is owned by the County Highway Agency.