B08_Attach_02_North_Rim_Final_CDs_Volume_05_20261012_Part4.pdf

This is a Civil Sheet Map for the North Rim of Grand Canyon National Park prepared by HDR Engineering, Inc., located in Denver, Colorado. The drawing is dated June 2026 and represents site work planning for the Roaring Springs area at the North Rim facility. The map depicts the layout and limits of construction (typical) for infrastructure improvements at the Roaring Springs Pumphouse and surrounding area, including existing electrical enclosures, transformer locations, slope stabilization features, and fencing. Key site elements shown include the North Rim to RSPH power distribution route, Roaring Springs Cave to RSPH water volume pipe, borehole and exit locations, and day-use trail access. The site plan is drawn to a scale of 1 inch equals 20 feet and identifies multiple construction zones (051C103, 051C104, 051C105, 051C107, and 051C401) with general notes indicating that all equipment will need to be flown into the jobsite area. This technical drawing appears to be part of a larger contract documentation package for infrastructure development or renovation work at the Grand Canyon National Park facility.