Utility Trench Green Belt

A technical drawing of a utility trench labeled for use in a green belt area. It features a cross-sectional view of the trench, filled with different materials. The top layer consists of 4 inches of topsoil seeded or sodded, followed by approved native materials, free of debris, with no rocks larger than 3 inches, compacted to 90% maximum density. Below this, Class II granular fill material is compacted to 98% maximum density. The image specifies a minimum trench width extending 6 inches beyond the pipe to meet compaction requirements. The trench maintains a minimum cover of 5.5 feet above the new water main and a trench depth ensuring a minimum distance of 1 foot of granular fill above top of trench. A round pipe is visible in the lower section of the trench, with a minimum 4-inch space beneath it. Annotations and dimensions throughout the drawing provide further details regarding construction specifications and material requirements.