Arlington - U.S. Highway 81

Project Complete

Project Summary:

US Hwy 81 grade raise north of Madison and South of Arlington

The purpose of this project is to reconstruct US-81 through the Twin Lakes to raise the elevation of the road and prevent the road from flooding in future high-water events.  The new road will have 12-foot wide driving lanes, 7 foot wide shoulders, and traffic will be protected by a 3-cable guardrail.

The benefits of this project are that future rain events will not cause the water to over-top the road so that the road will not need to be closed.  3-cable guardrail will replace the current W-beam guardrail and should eliminate some of the snow drifting that has been known to occur through this stretch of road.


Project Timeline:

Construction will begin on April 4, 2022, when the road will be closed to through traffic.  Guardrail removal and installation of new equalizer pipes will begin the week of April 4.  Grading, paving and Guardrail installation will begin after the pipe culvers are substantially complete.

U.S. Highway 81 will open between mile markers 112 and 114 (south of Arlington) on Tuesday, Sept. 6, 2022. Highway 81 is opening approximately two weeks ahead of the originally scheduled mid-September date.

Project Press Releases:

March 28, 2022

September 1, 2022

News Articles: 

Keloland - Sept. 7, 2022


Project Photos:

August 2022:

July 2022: 


June 2022: 


Project Contract Amount:

$8.47 Million


Project Contacts:

Prime contractor Contact: Wayne Lloyd, Prairie States Trucking Inc.  605-799-5473

SDDOT Contact: Brad Tiede, Project Engineer 605-940-3914


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