US Bridges

41840 280 St. over Dry Ck

PoorPosted for load

Hutchinson County, South Dakota · 4S & 8.4E Parkston · Structure no. 000000034144120

Built
1941
84 years old
Condition
Poor
inspected May 2024
Type
Slab
Concrete Continuous
Length
36 ft
2 main spans
Daily traffic
69
2022 count
Owner
County
County Highway Agency

About this bridge

41840 280 St. over Dry Ck is a concrete continuous slab carrying 41840 280 St. over Dry Ck in Hutchinson County, South Dakota. It was built in 1941, so it is 84 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 69 vehicles a day, roughly 2% of them trucks, projected to reach 69 by 2032. The structure is 36 ft (11.1 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries41840 280 St.
CrossesDry Ck
Location4S & 8.4E Parkston
RouteCounty Highway 0
Coordinates43.32857, -97.82833
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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating18 US tons
Inventory rating13.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length36 ft (11.1 m)
Longest span16 ft (4.9 m)
Deck width27 ft (8.3 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic69 (2022)
Projected traffic69 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 statusEligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$417,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 41840 280 St. over Dry Ck built?

It was built in 1941, making it 84 years old in 2025.

What condition is 41840 280 St. over Dry 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 May 2024.

How much traffic does 41840 280 St. over Dry Ck carry?

About 69 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 41840 280 St. over Dry Ck?

The structure is 36 ft (11.1 m) long with a longest span of 16 ft (4.9 m) and a deck 27 ft wide.

Who owns 41840 280 St. over Dry Ck?

It is owned by the County Highway Agency.