US Bridges

Main ST over Pony Ck

Good

Hutchinson County, South Dakota · Main ST - Parkston · Structure no. 000000034064073

Built
1999
26 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete Continuous
Length
29 ft
2 main spans
Daily traffic
20
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Main ST over Pony Ck is a concrete continuous culvert carrying Main ST over Pony Ck in Hutchinson County, South Dakota. It was built in 1999, so it is 26 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 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, roughly 2% of them trucks, projected to reach 20 by 2032. The structure is 29 ft (8.7 m) long. If it were closed, the detour would be 0.6 mi (1 km).

CarriesMain ST
CrossesPony Ck
LocationMain ST - Parkston
RouteCity Street 0
Coordinates43.39471, -97.98827
Functional classUrban 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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length29 ft (8.7 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 traffic20 (2022)
Projected traffic20 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$160,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Main ST over Pony Ck built?

It was built in 1999, making it 26 years old in 2025.

What condition is Main ST over Pony Ck 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 September 2023.

How much traffic does Main ST over Pony Ck carry?

About 20 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Main ST over Pony Ck?

The structure is 29 ft (8.7 m) long with a longest span of 14 ft (4.3 m).

Who owns Main ST over Pony Ck?

It is owned by the Town or Township Highway Agency.