Call Before You Dig this 811 Day! ZANESVILLE, OH – 8/11 isn’t just a date, it’s also an important reminder for homeowners to call ahead if they’re planning an outdoor digging project. “People should always call in before digging projects because you never know what utility lines are hidden underneath the ground.” Chronaberry says some of these outdoor projects could include installing new fencing, planting trees, or building a deck. If you are planning an outdoor project before the summer is over, call 811 or head to Columbia Gas of Ohio’s website.