B08_Attach_02_North_Rim_Final_CDs_Volume_05_20261012_Part6.pdf

This document is a technical plan and profile sheet for a construction project at the North Rim of Grand Canyon National Park. The project is being managed by HDR Engineering, Inc., located in Denver, CO 80202, with J. Glover serving as the project lead under the Gough/Glover designation.

The sheets (numbered 14 of 113 and 15 of 113) contain detailed engineering plans and profiles for utility and infrastructure work at the North Rim. The documentation includes site plans showing limits of construction, utility alignments for fiber optic lines, power to heat trace systems, and north rim to RSPH (Roaring Springs Power House) connections. The profiles display bore exit to RSPH alignments with specific elevation data, waterline fitting tables containing northing and easting coordinates for connection points, and technical specifications for pipeline installations. Key infrastructure elements documented include isolation valve vaults, gate valves, storm drains connecting to Roaring Springs Cave, and various utility conduits. The drawings reference multiple station locations (501+00 through 520+69) with corresponding slope calculations and bends. All work is located at the North Rim of Grand Canyon National Park, with drawings prepared in May 2026 and assigned drawing number 182752.