Exit 37 reconstruction project set to begin June 15

STURGIS, S.D. — Phase one of a four-phase reconstruction project on the Exit 37 interchange Interstate 90 near Sturgis is set to begin Wednesday, June 15.

The project will include the reconstruction of the Exit 37 interchange, eastbound grading on I-90, paving from west of Exit 37 to the Tilford Port of Entry, drainage structure extensions, installation of pipe culverts, installation of a commercial vehicle electronic screening system and the construction of a new Port of Entry building.

The eastbound and westbound passing lanes on I-90 between Exit 37 and Exit 40 will be closed during the first phase of the project. The construction of a center bent for the new bridge at Exit 37 and grading of the new Exit 37 westbound off ramp and eastbound on and off ramps is also part of phase one, and the scheduled completion date is July 27.

Phase two is set to begin Monday, August 15. The work will put two-way traffic in the eastbound lanes of I-90 and it will include work in the westbound lanes and median to replace drainage culverts, extend box culverts, installation of the commercial vehicle screening system, construction of the Exit 37 westbound on and off ramps, continue with the new Exit 37 overpass bridge, demolition of the existing port of entry building and begin construction of the new building.

Phases three and four will occur in 2023 and will include the replacement of drainage culverts and box culvert extensions, as well as grading and paving of the eastbound lanes on I-90 from west of Exit 37 to the Port of Entry, completion of the interchange at Exit 37, and completion of the new Port of Entry building.

The project has a scheduled completion date for Friday, Oct. 27, 2023.

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