US Bridges

Entrance Road over Spring Creek

FairPosted for load

Dunn County, North Dakota · Below Dam Spillway · Structure no. 000062571-00019

Built
2003
22 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
25
2024 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

Entrance Road over Spring Creek is a concrete culvert carrying Entrance Road over Spring Creek in Dunn County, North Dakota. It was built in 2003, so it is 22 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 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 25 vehicles a day, projected to reach 30 by 2044. The structure is 25 ft (7.6 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesEntrance Road
CrossesSpring Creek
LocationBelow Dam Spillway
RouteFederal Lands Road 0
CountyDunn County
StateNorth Dakota
Coordinates47.3465, -102.64533
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
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width34 ft (10.5 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic25 (2024)
Projected traffic30 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Fish and Wildlife
Maintained byBureau of Fish and Wildlife
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 Entrance Road over Spring Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Entrance Road over Spring 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 2024.

How much traffic does Entrance Road over Spring Creek carry?

About 25 vehicles per day (2024 count).

How long is Entrance Road over Spring Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 34 ft wide.

Who owns Entrance Road over Spring Creek?

It is owned by the Bureau of Fish and Wildlife.