New construction began Monday for the Longmeadow Parkway project in Algonquin. The southbound right turn lane of Sleepy Hollow Road north of Longmeadow Parkway and a portion of the westbound outside lane of Longmeadow Parkway east of Sleepy Hollow Road will be closed for the next three to four weeks, according to a news release from the Kane County Division of Transportation. The closures will allow crews to safely work on creating a small wall for the project.