US Bridges

Forest Road over Rapid Ck

Good

Pennington County, South Dakota · 0.2W & 0.2S Johnson Sidng · Structure no. 000000052306300

Built
2001
24 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
42 ft
1 main span
Daily traffic
101
2022 count
Owner
County
County Highway Agency

About this bridge

Forest Road over Rapid Ck is a prestressed concrete tee beam carrying Forest Road over Rapid Ck in Pennington County, South Dakota. It was built in 2001, so it is 24 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 101 vehicles a day, roughly 2% of them trucks, projected to reach 101 by 2032. The structure is 42 ft (12.8 m) long and 27 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesForest Road
CrossesRapid Ck
Location0.2W & 0.2S Johnson Sidng
RouteCounty Highway 0
Coordinates44.08178, -103.44056
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating33.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length42 ft (12.8 m)
Longest span37 ft (11.3 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic101 (2022)
Projected traffic101 by 2032
Trucks2%
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 Forest Road over Rapid Ck built?

It was built in 2001, making it 24 years old in 2025.

What condition is Forest Road 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 July 2023.

How much traffic does Forest Road over Rapid Ck carry?

About 101 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is Forest Road over Rapid Ck?

The structure is 42 ft (12.8 m) long with a longest span of 37 ft (11.3 m) and a deck 27 ft wide.

Who owns Forest Road over Rapid Ck?

It is owned by the County Highway Agency.