US Bridges

54th ST SW over Philbrick Creek

Good

Slope County, North Dakota · 7 North 14 East of Amidon · Structure no. 000000044149030

Built
1986
39 years old
Condition
Good
inspected October 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
82 ft
1 main span
Daily traffic
100
2018 count
Owner
County
County Highway Agency

About this bridge

54th ST SW over Philbrick Creek is a prestressed concrete box beam or girders - single or spread carrying 54th ST SW over Philbrick Creek in Slope 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 13% of them trucks, projected to reach 100 by 2038. The structure is 82 ft (25 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Carries54th ST SW
CrossesPhilbrick Creek
Location7 North 14 East of Amidon
RouteCounty Highway 0
Coordinates46.59373, -103.03074
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length82 ft (25 m)
Longest span78 ft (23.8 m)
Deck width33 ft (10.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2018)
Projected traffic100 by 2038
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 54th ST SW over Philbrick Creek built?

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

What condition is 54th ST SW over Philbrick 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 October 2024.

How much traffic does 54th ST SW over Philbrick Creek carry?

About 100 vehicles per day (2018 count), of which roughly 13% are trucks.

How long is 54th ST SW over Philbrick Creek?

The structure is 82 ft (25 m) long with a longest span of 78 ft (23.8 m) and a deck 33 ft wide.

Who owns 54th ST SW over Philbrick Creek?

It is owned by the County Highway Agency.