US Bridges

41660 269 St. over Twelve Mile Ck

Good

Hutchinson County, South Dakota · 6N & 5.6E Parkston · Structure no. 000000034126010

Built
1997
28 years old
Condition
Good
inspected May 2024
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

41660 269 St. over Twelve Mile Ck is a concrete continuous slab carrying 41660 269 St. over Twelve Mile Ck in Hutchinson County, South Dakota. It was built in 1997, so it is 28 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 45 vehicles a day, roughly 2% of them trucks, projected to reach 45 by 2032. The structure is 128 ft (39 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries41660 269 St.
CrossesTwelve Mile Ck
Location6N & 5.6E Parkston
RouteCounty Highway 0
Coordinates43.48528, -97.86702
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating60.5 US tons
Inventory rating36.2 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length128 ft (39 m)
Longest span48 ft (14.6 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$25,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 41660 269 St. over Twelve Mile Ck built?

It was built in 1997, making it 28 years old in 2025.

What condition is 41660 269 St. over Twelve Mile 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 May 2024.

How much traffic does 41660 269 St. over Twelve Mile Ck carry?

About 45 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 41660 269 St. over Twelve Mile Ck?

The structure is 128 ft (39 m) long with a longest span of 48 ft (14.6 m) and a deck 29 ft wide.

Who owns 41660 269 St. over Twelve Mile Ck?

It is owned by the County Highway Agency.