On the heels of its exhibit at the Vermont Statehouse, installed in its permanent home in Barre’s Aldrich Public Library, and reproduced in book form, “Heart of Barre: Building Community After the Floods” is now heading to Washington, D.C. Later this month, a smaller, photographic reproduction of one of the two anchor pieces in the exhibit — the 80-by-80-inch grid of 20 portraits of survivors of the 2023 flood shown here — will represent Vermont…