US Bridges

198 Street over Medicine Knoll Ck

Good

Hughes County, South Dakota · 1.2 E Blunt · Structure no. 000000033302020

Built
2012
13 years old
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
127 ft
3 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

198 Street over Medicine Knoll Ck is a concrete continuous slab carrying 198 Street over Medicine Knoll Ck in Hughes County, South Dakota. It was built in 2012, so it is 13 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 10% of them trucks, projected to reach 65 by 2032. The structure is 127 ft (38.7 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries198 Street
CrossesMedicine Knoll Ck
Location1.2 E Blunt
RouteCounty Highway 0
Coordinates44.51241, -99.96278
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 protection8 Very GoodNo problems noted.
Last inspectionJune 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 rating48.5 US tons
Inventory rating37.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length127 ft (38.7 m)
Longest span48 ft (14.6 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic65 by 2032
Trucks10%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 198 Street over Medicine Knoll Ck built?

It was built in 2012, making it 13 years old in 2025.

What condition is 198 Street over Medicine Knoll 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 June 2024.

How much traffic does 198 Street over Medicine Knoll Ck carry?

About 45 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is 198 Street over Medicine Knoll Ck?

The structure is 127 ft (38.7 m) long with a longest span of 48 ft (14.6 m) and a deck 33 ft wide.

Who owns 198 Street over Medicine Knoll Ck?

It is owned by the County Highway Agency.