US Bridges

IRR SD063 over White Rv

Fair

Jackson County, South Dakota · 3.6 S I 90 Interch · Structure no. 000000036447138

Built
1970
55 years old
Condition
Fair
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
578 ft
4 main spans
Daily traffic
177
2024 count
Owner
State
State Highway Agency

About this bridge

IRR SD063 over White Rv is a steel continuous stringer/multi-beam or girder carrying IRR SD063 over White Rv in Jackson County, South Dakota. It was built in 1970, so it is 55 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 6 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 177 vehicles a day, roughly 16% of them trucks, projected to reach 222 by 2044. The structure is 578 ft (176.3 m) long and 35 ft wide. If it were closed, the detour would be 36 mi (58 km).

CarriesIRR SD063
CrossesWhite Rv
Location3.6 S I 90 Interch
RouteState Highway 63
Coordinates43.79712, -101.24858
Functional classRural Major 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.1 US tons
Inventory rating29.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length578 ft (176.3 m)
Longest span162 ft (49.4 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic177 (2024)
Projected traffic222 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed36 mi (58 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SD063 over White Rv built?

It was built in 1970, making it 55 years old in 2025.

What condition is IRR SD063 over White 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 January 2024.

How much traffic does IRR SD063 over White Rv carry?

About 177 vehicles per day (2024 count), of which roughly 16% are trucks.

How long is IRR SD063 over White Rv?

The structure is 578 ft (176.3 m) long with a longest span of 162 ft (49.4 m) and a deck 35 ft wide.

Who owns IRR SD063 over White Rv?

It is owned by the State Highway Agency.