American installation artist Robert Irwin will create a major piece for the Chinati Foundation in Marfa, Texas, the foundation announced on Thursday.

The project has been in the works for 13 years, Irwin said.

"I'm not going to count my chickens before they hatch," he joked. "I'll believe it when I see it."

He'll have to wait a couple of years until then. Construction on the installation will begin next year and isn't slated to be completed until 2016.