US Bridges

Norwefian Ave. over Norwefian Gulch

Fair

Clay County, South Dakota · 6.3S & 7.5E Irene · Structure no. 000000014075063

Built
1996
29 years old
Condition
Fair
inspected August 2024
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

Norwefian Ave. over Norwefian Gulch is a concrete continuous culvert carrying Norwefian Ave. over Norwefian Gulch in Clay County, South Dakota. It was built in 1996, so it is 29 years old, younger than the South Dakota average of 48.9 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.

It carries about 25 vehicles a day, roughly 2% of them trucks, projected to reach 97 by 2032. The structure is 29 ft (8.9 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesNorwefian Ave.
CrossesNorwefian Gulch
Location6.3S & 7.5E Irene
RouteCounty Highway 0
CountyClay County
StateSouth Dakota
Coordinates42.99288, -97.01287
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating110.1 US tons
Inventory rating84.1 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length29 ft (8.9 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2022)
Projected traffic97 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Norwefian Ave. over Norwefian Gulch built?

It was built in 1996, making it 29 years old in 2025.

What condition is Norwefian Ave. over Norwefian Gulch 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 Norwefian Ave. over Norwefian Gulch carry?

About 25 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Norwefian Ave. over Norwefian Gulch?

The structure is 29 ft (8.9 m) long with a longest span of 14 ft (4.3 m).

Who owns Norwefian Ave. over Norwefian Gulch?

It is owned by the County Highway Agency.