US Bridges

National Park Road over I-94/PARK Road Separatio

Good

Billings County, North Dakota · 16 West of Jct. US 85 · Structure no. 0094026204 L

Built
1965
60 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
138 ft
3 main spans
Daily traffic
300
2019 count
Owner
State
State Highway Agency

About this bridge

National Park Road over I-94/PARK Road Separatio is a steel continuous stringer/multi-beam or girder carrying National Park Road over I-94/PARK Road Separatio in Billings County, North Dakota. It was built in 1965, so it is 60 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 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 300 vehicles a day, roughly 5% of them trucks, projected to reach 300 by 2039. The structure is 138 ft (42.1 m) long and 30 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesNational Park Road
CrossesI-94/PARK Road Separatio
Location16 West of Jct. US 85
RouteState Lands Road 0
Coordinates46.92342, -103.51143
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.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating73.6 US tons
Inventory rating44.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length138 ft (42.1 m)
Longest span55 ft (16.8 m)
Deck width30 ft (9.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic300 (2019)
Projected traffic300 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was National Park Road over I-94/PARK Road Separatio built?

It was built in 1965, making it 60 years old in 2025.

What condition is National Park Road over I-94/PARK Road Separatio 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 National Park Road over I-94/PARK Road Separatio carry?

About 300 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is National Park Road over I-94/PARK Road Separatio?

The structure is 138 ft (42.1 m) long with a longest span of 55 ft (16.8 m) and a deck 30 ft wide.

Who owns National Park Road over I-94/PARK Road Separatio?

It is owned by the State Highway Agency.