City of Naperville issued the following announcement on June 18.
Electrical work is taking place from now through Friday, June 22, between 7 a.m. and 3:30 p.m. in the alley on the west side of Main Street between The Gap and Talbots.
Due to heavy equipment being used, the sidewalk in front of the alley and the entrance from the Jackson Avenue parking lot will be blocked.
Please use caution in this area.
Original source can be found here.