US Bridges

Old Wasta RD over Cheyenne Rv

Fair

Pennington County, South Dakota · 1.0 N 2.4 E Wasta · Structure no. 000000052824300

Built
1940
85 years old
Condition
Fair
inspected September 2024
Type
Truss - Deck
Steel
Length
977 ft
4 main spans
Daily traffic
120
2022 count
Owner
County
County Highway Agency

About this bridge

Old Wasta RD over Cheyenne Rv is a steel truss - deck carrying Old Wasta RD over Cheyenne Rv in Pennington County, South Dakota. It was built in 1940, so it is 85 years old, older 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.

It carries about 120 vehicles a day, roughly 3% of them trucks, projected to reach 120 by 2032. The structure is 977 ft (297.8 m) long and 27 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesOld Wasta RD
CrossesCheyenne Rv
Location1.0 N 2.4 E Wasta
RouteCounty Highway 0
CountyPennington County
StateSouth Dakota
Coordinates44.08098, -102.40034
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating38.3 US tons
Inventory rating22.9 US tons

Structure

Structure typeTruss - Deck
MaterialSteel
DeckClosed grating
Main spans4 (+6 approach)
Design loadHS 20 + Mod
Structure length977 ft (297.8 m)
Longest span150 ft (45.7 m)
Deck width27 ft (8.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2022)
Projected traffic120 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$43,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Wasta RD over Cheyenne Rv built?

It was built in 1940, making it 85 years old in 2025.

What condition is Old Wasta RD over Cheyenne 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 September 2024.

How much traffic does Old Wasta RD over Cheyenne Rv carry?

About 120 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Old Wasta RD over Cheyenne Rv?

The structure is 977 ft (297.8 m) long with a longest span of 150 ft (45.7 m) and a deck 27 ft wide.

Who owns Old Wasta RD over Cheyenne Rv?

It is owned by the County Highway Agency.