US Bridges

300 Avenue over Keya Paha Rv

FairPosted for load

Tripp County, South Dakota · 7W & 2.4S Clearfield · Structure no. 000000062040444

Built
1982
43 years old
Condition
Fair
inspected June 2023
Type
Girder and Floorbeam System
Steel
Length
60 ft
2 main spans
Daily traffic
31
2022 count
Owner
County
County Highway Agency

About this bridge

300 Avenue over Keya Paha Rv is a steel girder and floorbeam system carrying 300 Avenue over Keya Paha Rv in Tripp County, South Dakota. It was built in 1982, so it is 43 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 31 vehicles a day, roughly 2% of them trucks, projected to reach 31 by 2032. The structure is 60 ft (18.3 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
Carries300 Avenue
CrossesKeya Paha Rv
Location7W & 2.4S Clearfield
RouteCounty Highway 0
CountyTripp County
StateSouth Dakota
Coordinates43.13536, -100.16659
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating43.4 US tons
Inventory rating26 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckCorrugated steel
Main spans2 (+1 approach)
Design loadHS 20 + Mod
Structure length60 ft (18.3 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic31 (2022)
Projected traffic31 by 2032
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$7,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 300 Avenue over Keya Paha Rv built?

It was built in 1982, making it 43 years old in 2025.

What condition is 300 Avenue over Keya Paha Rv in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does 300 Avenue over Keya Paha Rv carry?

About 31 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is 300 Avenue over Keya Paha Rv?

The structure is 60 ft (18.3 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns 300 Avenue over Keya Paha Rv?

It is owned by the County Highway Agency.