Get ready for more construction in downtown Elkhart.

Crews are installing a one-million gallon, underground tank in Elkhart.

It's part of an ongoing project to reduce the amount of sewage mixing with storm water runoff and going into nearby rivers.

Work also today included replacing a 100-year old water main.

"Waterfall Drive between Jackson and Lexington will be closed as well as the Gause lot, that's where the vast majority of the work is going on," says Elkhart City Engineer Mike Machlan. "The sidewalk on Lexington will be open the whole time, so that people can get to the various businesses."

There will be also traffic restrictions around Waterfall Drive and Lexington Avenue.

The entire sewer project will continue until at least September of next year.