Double Storm Catch Basin

A technical engineering drawing of a double storm catch basin. It is a detailed schematic showing the dimensions, materials, and construction specifics needed for building this structure. The drawing is divided into multiple sections, demonstrating the top and side views, along with detailed annotations. The top view shows two circular grates inside a square frame, measuring 6 feet by 12 feet. The side view reveals a cylindrical structure outlined with bricks and cement plastering, measuring 3 feet 4 inches in height with additional specifications for plaster coating and reinforcing rods. The drawing indicates brick adjustment courses and a precast concrete spandrel. Additional details include a granular backfill, perforated edge drain, and specific notes regarding structure backfill requirements. Each section is annotated with descriptive labels and precise measurements such as thickness specifications for materials used.