Artist Ann Hamilton visited the new federal courthouse being constructed at 101 Locust St. in Des Moines on Tuesday to review the art being installed in the lobby. While construction of the courthouse is not 100% complete, Jasmeet Singh, a project manager from Jacobs Solutions Inc., said it will be finished soon but would not provide a specific estimate. Construction workers on Tuesday were installing nine columns including panels made of limestone with writing inspired by historical U.S. documents that Hamilton previously reviewed. “I started reading some of the foundational documents; some of them are pretty dry, but I think what I felt in all of them is that it lays out this aspiration for our democratic legal system,” Hamilton said. “So what you’re seeing in stone is the composition that draws on the vocabulary of these documents. The earliest one is the Magna Carta, and I think the most recent one is the United States v. Virginia. So what are those things that have given us the vocabulary to address where the culture is? And then I made what is a more poetic structure of that language.” Hamilton plans to return for the grand opening of the courthouse.