 A federal appeals court ruled that the EIS was "inadequate" and "...arbitrary and capricious" as it did not study other alternate routes that were less harmful to wetlands that the parkway was originally to be routed through.A supplemental EIS (SEIS), which changed the routing of the highway as well as increased the amount of land to be part of the Legacy Nature Preserve, was completed in January 2005.The SEIS also added in the trail system that now parallels the parkway.