The Cubs held an official groundbreaking today for renovations at Wrigley Field. It’s being called the “1060 Project” in reference to the stadium’s address at 1060 West Addison Street. Chicago mayor Rahm Emanuel and MLB commissioner Bud Selig were both on-hand for the festivities.

The Cubs hope to have the $575 million Wrigleyville renovation completed by Opening Day in 2018. The first of four phases will take place this winter, including plans for seven new outfield signs and a massive jumbotron above the left field bleachers. The Cubs have 177 days to get the work done before Opening Day next season.