US Bridges

Township RD over Box Elder Ck

Good

Pennington County, South Dakota · Owanka · Structure no. 000000052728342

Built
2006
19 years old
Condition
Good
inspected June 2024
Type
Tee Beam
Prestressed Concrete
Length
81 ft
1 main span
Daily traffic
15
2022 count
Owner
County
County Highway Agency

About this bridge

Township RD over Box Elder Ck is a prestressed concrete tee beam carrying Township RD over Box Elder Ck in Pennington County, South Dakota. It was built in 2006, so it is 19 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 15 vehicles a day, roughly 9% of them trucks, projected to reach 15 by 2032. The structure is 81 ft (24.7 m) long and 30 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesTownship RD
CrossesBox Elder Ck
LocationOwanka
RouteCounty Highway 0
Coordinates44.02152, -102.59189
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
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating89.9 US tons
Inventory rating53.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length81 ft (24.7 m)
Longest span77 ft (23.5 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2032
Trucks9%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Township RD over Box Elder Ck built?

It was built in 2006, making it 19 years old in 2025.

What condition is Township RD over Box Elder 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 Township RD over Box Elder Ck carry?

About 15 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is Township RD over Box Elder Ck?

The structure is 81 ft (24.7 m) long with a longest span of 77 ft (23.5 m) and a deck 30 ft wide.

Who owns Township RD over Box Elder Ck?

It is owned by the County Highway Agency.