US Bridges

102nd Ave SE over Unit I Spillway

Good

Burleigh County, North Dakota · 2.9 Mi. Wnw Headquarters · Structure no. 000062522-38600

Built
2001
24 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
59 ft
4 main spans
Daily traffic
20
2024 count
Owner
Federal
Bureau of Fish and Wildlife

About this bridge

102nd Ave SE over Unit I Spillway is a concrete culvert carrying 102nd Ave SE over Unit I Spillway in Burleigh County, North Dakota. It was built in 2001, so it is 24 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 20 vehicles a day, projected to reach 30 by 2044. The structure is 59 ft (18 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Carries102nd Ave SE
CrossesUnit I Spillway
Location2.9 Mi. Wnw Headquarters
RouteFederal Lands Road 0
Coordinates46.692, -100.28733
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 evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length59 ft (18 m)
Longest span14 ft (4.3 m)
Deck width40 ft (12.3 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deck107 ft (32.7 m)

Traffic and service

Average daily traffic20 (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 102nd Ave SE over Unit I Spillway built?

It was built in 2001, making it 24 years old in 2025.

What condition is 102nd Ave SE over Unit I Spillway 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 102nd Ave SE over Unit I Spillway carry?

About 20 vehicles per day (2024 count).

How long is 102nd Ave SE over Unit I Spillway?

The structure is 59 ft (18 m) long with a longest span of 14 ft (4.3 m) and a deck 40 ft wide.

Who owns 102nd Ave SE over Unit I Spillway?

It is owned by the Bureau of Fish and Wildlife.