FERC Topo Maps Showing Constitution Pipeline Proposed RouteBy Helen McLean / August 7, 2012 Maps from FERC: Constitution Pipeline – USGS Topo Map Excerpts 14, 15 & 16 for Franklin, NY. Constitution Pipeline – USGS Topo Map – Excerpt 14 Constitution Pipeline – USGS Topo Map – Excerpt 15 Constitution Pipeline – USGS Topo Map – Excerpt 16