US Bridges

IRR County Road over Keya Paha Rv

Good

Todd County, South Dakota · 14.2E & 6.0S of Mission · Structure no. 000000061442120

Built
2000
25 years old
Condition
Good
inspected August 2021
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

IRR County Road over Keya Paha Rv is a concrete continuous culvert carrying IRR County Road over Keya Paha Rv in Todd County, South Dakota. It was built in 2000, so it is 25 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 20 vehicles a day, projected to reach 20 by 2042. The structure is 21 ft (6.3 m) long.

Location

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CarriesIRR County Road
CrossesKeya Paha Rv
Location14.2E & 6.0S of Mission
RouteCounty Highway 0
CountyTodd County
StateSouth Dakota
Coordinates43.2161, -100.36657
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length21 ft (6.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 IRR County Road over Keya Paha Rv built?

It was built in 2000, making it 25 years old in 2025.

What condition is IRR County Road over Keya Paha Rv 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 August 2021.

How much traffic does IRR County Road over Keya Paha Rv carry?

About 20 vehicles per day (2022 count).

How long is IRR County Road over Keya Paha Rv?

The structure is 21 ft (6.3 m) long with a longest span of 10 ft (3 m).

Who owns IRR County Road over Keya Paha Rv?

It is owned by the County Highway Agency.