US Bridges

Irrfb County Hiway over East Fork Shell Creek

Good

Mountrail County, North Dakota · 4 West of Parshall · Structure no. 000000031130420

Built
1980
45 years old, rebuilt 2012
Condition
Good
inspected June 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
60 ft
1 main span
Daily traffic
282
2022 count
Owner
County
County Highway Agency

About this bridge

Irrfb County Hiway over East Fork Shell Creek is a prestressed concrete box beam or girders - single or spread carrying Irrfb County Hiway over East Fork Shell Creek in Mountrail County, North Dakota. It was built in 1980 and reconstructed in 2012, so it is 45 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 282 vehicles a day, projected to reach 380 by 2042. The structure is 60 ft (18.3 m) long and 36 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesIrrfb County Hiway
CrossesEast Fork Shell Creek
Location4 West of Parshall
RouteCounty Highway 0
Coordinates47.94859, -102.21514
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating71.8 US tons
Inventory rating14.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length60 ft (18.3 m)
Longest span57 ft (17.4 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic282 (2022)
Projected traffic380 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Irrfb County Hiway over East Fork Shell Creek built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 2012.

What condition is Irrfb County Hiway over East Fork Shell Creek 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 June 2024.

How much traffic does Irrfb County Hiway over East Fork Shell Creek carry?

About 282 vehicles per day (2022 count).

How long is Irrfb County Hiway over East Fork Shell Creek?

The structure is 60 ft (18.3 m) long with a longest span of 57 ft (17.4 m) and a deck 36 ft wide.

Who owns Irrfb County Hiway over East Fork Shell Creek?

It is owned by the County Highway Agency.