US Bridges

1 Lane Scoria RD over Magpie Creek

FairPosted for load

McKenzie County, North Dakota · 40 MI NW Belfield Nd · Structure no. 010808000001051

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Truss - Thru
Steel
Length
102 ft
1 main span
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

1 Lane Scoria RD over Magpie Creek is a steel truss - thru carrying 1 Lane Scoria RD over Magpie Creek in McKenzie County, North Dakota. It was built in 1975, so it is 50 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 102 ft (31.1 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
Carries1 Lane Scoria RD
CrossesMagpie Creek
Location40 MI NW Belfield Nd
RouteFederal Lands Road 804A
CountyMcKenzie County
StateNorth Dakota
Coordinates47.3447, -103.591
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.7 US tons
Inventory rating20 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 20
Structure length102 ft (31.1 m)
Longest span100 ft (30.5 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byPrivate (other than railroad)
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 1 Lane Scoria RD over Magpie Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is 1 Lane Scoria RD over Magpie Creek 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 August 2023.

How much traffic does 1 Lane Scoria RD over Magpie Creek carry?

About 50 vehicles per day (latest count).

How long is 1 Lane Scoria RD over Magpie Creek?

The structure is 102 ft (31.1 m) long with a longest span of 100 ft (30.5 m) and a deck 16 ft wide.

Who owns 1 Lane Scoria RD over Magpie Creek?

It is owned by the U.S. Forest Service and maintained by the Private (other than railroad).