B08_Attach_02_North_Rim_Final_CDs_Volume_05_20261012_Part9.pdf

These documents are design sheets for the Roaring Springs Pumphouse utility corridor project at the North Rim of Grand Canyon National Park, prepared by HDR Engineering, Inc. in Denver, Colorado. The sheets include an enlarged plan view showing the water distribution piping system layout with coordinates and connection points, along with a waterline fitting table detailing 13 specific fittings numbered 24-36 with their respective northing/easting coordinates and descriptions. The descriptions specify various piping components including 4-inch and 2-inch steel raw water distribution lines, schedule 40 and 80 steel pipe fittings, 90-degree and 45-degree bends, vertical bends (rotated), connections to process piping, armored 3-inch power lines, and connections to RSPH (Roaring Springs Pumphouse), BSPH (Booster Spring Pumphouse), and slope stabilization features. The second set of design sheets presents four cross-sectional views (A, B, C, and D) at 1 inch equals 3 feet scale, illustrating the subsurface and above-ground utility infrastructure including existing grade lines, final grades with vertical clearances of 10 inches behind the RSPH, steel potable water lines, raw water distribution, armored power conduits, and related piping systems at the North Rim project site.