US Bridges

Sherman Street over Rapid Ck

Good

Pennington County, South Dakota · Silver City · Structure no. 000000052246298

Built
2023
2 years old
Condition
Good
inspected December 2023
Type
Frame
Concrete
Length
50 ft
1 main span
Daily traffic
305
2022 count
Owner
County
County Highway Agency

About this bridge

Sherman Street over Rapid Ck is a concrete frame carrying Sherman Street over Rapid Ck in Pennington County, South Dakota. It was built in 2023, so it is 2 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 305 vehicles a day, roughly 2% of them trucks, projected to reach 305 by 2034. The structure is 50 ft (15.2 m) long and 26 ft wide. If it were closed, the detour would be 18.6 mi (30 km).

CarriesSherman Street
CrossesRapid Ck
LocationSilver City
RouteCounty Highway 0
Coordinates44.08521, -103.56352
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation9: Superior to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47.7 US tons
Inventory rating36.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length50 ft (15.2 m)
Longest span48 ft (14.6 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic305 (2022)
Projected traffic305 by 2034
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18.6 mi (30 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 Sherman Street over Rapid Ck built?

It was built in 2023, making it 2 years old in 2025.

What condition is Sherman Street over Rapid 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 December 2023.

How much traffic does Sherman Street over Rapid Ck carry?

About 305 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Sherman Street over Rapid Ck?

The structure is 50 ft (15.2 m) long with a longest span of 48 ft (14.6 m) and a deck 26 ft wide.

Who owns Sherman Street over Rapid Ck?

It is owned by the County Highway Agency.