Thornton Quarry

A very interesting project recently photographed is the Thornton Quarry / Deep Tunnel Project in Thornton, Illinois. Three hundred feet below the surface Walsh Construction Co and Atkinson Construction Co. are combining efforts to tunnel through rock to limestone quarries, huge cavities in the earth that will eventually store torrential rainwater. This will eliminate the need to release raw sewage from the overburdened sewage treatment plants into Lake Michigan and will alleviate basement flooding in cities and towns from the far south suburbs to the far northern suburbs.This project has been under construction for over thirty years.