ST. PAUL, Minn. - The first week in December marks the last week of demolition of the old Diamond Building in Lowertown St. Paul.

The Mayor and the St. Paul Saints took advantage of that milestone by showing the public what the new ball diamond on the site will look like in 2015.

"We get to begin to see a new, important center of activity in downtown rising up out of the ground," Mayor Chris Coleman told a crowd.

While the demolition wraps up, the site clean-up begins.

"There's a lot of contaminated soil on this site and it's not just concentrated in one area or another, it's spread across the entire site," Mark Maghrak with Ryan Companies, explained.

Crews will actually start building the stadium in the spring of 2014. It's a moment that's been in the making for years.

"I got gray hair doing this project. I was a brunette before!" Annie Huidekoper with the Saints said with a chuckle. She's been working on getting a new stadium for almost 10 years, and has been laser-focused on Lowertown since 2009.

Huidekoper says the new stadium will be used by the team for one-third of the year, and by the community for the remainder of the year. She says amateur baseball is another big victor in this project. The city is projecting the ballpark will bring 400,000 visitors annually to Downtown St. Paul.

The Saints and the "Saintly City" have passed a number of milestones, and have a couple more to go.

"The magical day, we think, is going to be May 15th of 2015, so 5/15/15, and we can't wait," Huidekoper concluded.