U.S. Highway 18 Bridge Repair Near Winner

Project Summary:

Low slump bridge deck overlays, PCC paving and new guardrail at 6 structures around Winner.

• 18 ft width restriction on U.S. Highway 18 from U.S. Highway 183N Jct to Colome
• 11 ft width restriction on S.D. Highway 49 at Hamill

Project Timeline:

May 2025 - Nov. 2025

Project Updates:

Aug. 27, 2025: 

July 15, 2025 – Aug. 15, 2025, Completed Work:
Asphalt paving was completed for the westbound shoulders and guardrail widening at the Cottonwood Creek and Big Hollow Creek bridges. Traffic was shifted to the westbound lanes, and work began on the eastbound lanes of these bridges. Both bridge decks were milled, class work was completed, and the low-slump dense concrete overlay was placed on the Cottonwood Creek bridge. Approach slab repairs were also completed on the Dog Ear Creek bridge.

Anticipated Work Aug. 15, 2025 – Sept. 15, 2025:
Crews will place the low-slump dense concrete overlay on the Big Hollow Creek bridge. Shoulder paving and guardrail work will continue at the Cottonwood Creek and Big Hollow Creek bridges. A new sleeper slab will be poured on the east end of the Dog Ear Creek bridge, followed by new concrete surfacing between the bridge and the existing pavement. It is anticipated that all work on the Cottonwood Creek and Big Hollow Creek bridges will be completed within this period, and traffic control will be removed.

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May 20, 2025 - Press Release: 

Beginning Tuesday, May 27, 2025, work is scheduled to begin on several bridges near Winner. The repair areas will be the following bridges:

•    Bridge over Cottonwood Creek; located seven miles west of Winner on U.S. Highway 18;
•    Bridge over Big Hollow Creek; located three miles west of Winner on Highway 18;
•    Bridge over Dog Ear Creek; located on the western edge of Winner on Highway 18;
•    Bridge over the West Branch of Thunder Creek; located one and one-half miles southeast of Winner on Highway 18;
•    Bridge over Thunder Creek; located three and one-half miles southeast of Winner on Highway 18; and
•    Bridge over Moccasin Creek; located on S.D. Highway 49 near Hamill.

Work at each location will consist of concrete removal and repair of the existing bridge decks followed by a low slump dense concrete overlay. The bridge over Dog Ear Creek will also consist of new approach slabs and concrete paving off the east end of the bridge. Work will be done in phases with one lane of the bridges being worked on at a time while the other lane remains open to traffic. Traffic at each location will be controlled by temporary traffic signals or stop signs. An 18-foot width restriction will be enforced on all bridges located on Highway 18 and an 11-foot width restriction will be enforced on the bridge over Moccasin Creek (Highway 49 near Hamill). 

Traffic control is scheduled to be installed on Tuesday, May 27, 2025, at the bridge over Cottonwood Creek and the bridge over Big Hollow Creek. On Thursday, May 29, 2025, traffic control will also be installed at the bridge over Dog Ear Creek. 

STATEWIDE CONSTRUCTION PROJECTS PAGE

PCN: 08H9