US Bridges

B-Dike Road over Long. L. Unit 1 Overflow

Good

Burleigh County, North Dakota · 0.1 MI SE of Hq · Structure no. 000062522-59574

Built
2008
17 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
105 ft
8 main spans
Daily traffic
50
2024 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

B-Dike Road over Long. L. Unit 1 Overflow is a concrete culvert carrying B-Dike Road over Long. L. Unit 1 Overflow in Burleigh County, North Dakota. It was built in 2008, so it is 17 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 50 vehicles a day, projected to reach 50 by 2044. The structure is 105 ft (32 m) long and 43 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

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CarriesB-Dike Road
CrossesLong. L. Unit 1 Overflow
Location0.1 MI SE of Hq
RouteFederal Lands Road 0
CountyBurleigh County
StateNorth Dakota
Coordinates46.66833, -100.22983
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans8
Design loadHS 25 or greater
Structure length105 ft (32 m)
Longest span12 ft (3.7 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic50 (2024)
Projected traffic50 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 B-Dike Road over Long. L. Unit 1 Overflow built?

It was built in 2008, making it 17 years old in 2025.

What condition is B-Dike Road over Long. L. Unit 1 Overflow 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 August 2024.

How much traffic does B-Dike Road over Long. L. Unit 1 Overflow carry?

About 50 vehicles per day (2024 count).

How long is B-Dike Road over Long. L. Unit 1 Overflow?

The structure is 105 ft (32 m) long with a longest span of 12 ft (3.7 m) and a deck 43 ft wide.

Who owns B-Dike Road over Long. L. Unit 1 Overflow?

It is owned by the Bureau of Fish and Wildlife.