US Bridges

Bad River RD over Plum Ck

Good

Stanley County, South Dakota · 4 SW Wendte · Structure no. 000000059219391

Built
1983
42 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete Continuous
Length
99 ft
3 main spans
Daily traffic
71
2022 count
Owner
County
County Highway Agency

About this bridge

Bad River RD over Plum Ck is a concrete continuous slab carrying Bad River RD over Plum Ck in Stanley County, South Dakota. It was built in 1983, so it is 42 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 71 vehicles a day, roughly 3% of them trucks, projected to reach 71 by 2032. The structure is 99 ft (30.3 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesBad River RD
CrossesPlum Ck
Location4 SW Wendte
RouteCounty Highway 0
Coordinates44.21077, -100.72657
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Last inspectionSeptember 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.5 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length99 ft (30.3 m)
Longest span38 ft (11.6 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic71 (2022)
Projected traffic71 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$20,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Bad River RD over Plum Ck built?

It was built in 1983, making it 42 years old in 2025.

What condition is Bad River RD over Plum 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 2024.

How much traffic does Bad River RD over Plum Ck carry?

About 71 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Bad River RD over Plum Ck?

The structure is 99 ft (30.3 m) long with a longest span of 38 ft (11.6 m) and a deck 31 ft wide.

Who owns Bad River RD over Plum Ck?

It is owned by the County Highway Agency.