US Bridges

27150 446 Ave over Ck

PoorPosted for load

Turner County, South Dakota · 1.5N & 1W Marion · Structure no. 000000063060035

Built
1945
80 years old
Condition
Poor
inspected June 2023
Type
Culvert
Masonry
Length
27 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

27150 446 Ave over Ck is a masonry culvert carrying 27150 446 Ave over Ck in Turner County, South Dakota. It was built in 1945, so it is 80 years old, older than the South Dakota average of 48.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 100 vehicles a day, roughly 2% of them trucks, projected to reach 97 by 2032. The structure is 27 ft (8.2 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Carries27150 446 Ave
CrossesCk
Location1.5N & 1W Marion
RouteCounty Highway 0
Coordinates43.45289, -97.28037
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckNot applicable
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$325,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 27150 446 Ave over Ck built?

It was built in 1945, making it 80 years old in 2025.

What condition is 27150 446 Ave over Ck in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in June 2023.

How much traffic does 27150 446 Ave over Ck carry?

About 100 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 27150 446 Ave over Ck?

The structure is 27 ft (8.2 m) long with a longest span of 10 ft (3 m).

Who owns 27150 446 Ave over Ck?

It is owned by the County Highway Agency.