Bicentennial_Bell_Irrigation_2024_0004.pdf

This document is an irrigation plan for the Bicentennial Bell Garden at Independence National Historical Park. The plan details a comprehensive irrigation system design with two pages of technical specifications and schematic drawings.

The irrigation system includes 1.5-inch and 1-inch schedule 40 PVC lateral lines, 3-inch schedule 40 PVC sleeves, and permanently irrigated areas with pop-up spray heads. The system incorporates multiple irrigation components including 12-inch pop-up spray heads, pre-filter irrigation (PRI), remote control valves (RCV), isolation gate valves, and quick-coupling valves with blow-out capabilities. Points of connection (POC) are marked throughout the plan with controllers and wired rain sensors specified for automated operation. The nozzle notation identifies specific spray head models including MP80, MP800, MP850SQ-210, and MP360 with varying flow rates and spray patterns (orange and grey lines, green and grey lines). The root watering system, controller placement, rain sensor locations, and trench details are illustrated with supporting diagrams on page two. All components are designed to ensure proper irrigation distribution across the garden landscape while maintaining minimum one-row planting clearance for landscape aesthetic requirements. The plan was updated on 2/8/2023 by NPS and represents 21 of 34 total plan pages for the project.