Dubuque residents are being asked to help decide what the next big addition to the Historic Millwork District will look like, and the City wants your ideas. Credit: Google Maps | The area of 10th and Elm Street in the Millwork District. Credit: Google Maps | The area of 10th and Elm Street in the Millwork District. When the original Historic Millwork District Master Plan was adopted back in 2009, Foundry Square was identified as the ideal spot for a flexible plaza and park in the heart of the Millwork. The idea has gained more traction with the 2024 Updated Historic Millwork District Master Plan.