Attachment D -Hickory 11 Repair.pdf

These engineering design documents detail the Hickory Creek Watershed Floodwater Retarding Structure Site No. 11 in Denton County, Texas, prepared by the USDA Natural Resources Conservation Service for a dam repair project. The technical drawings provide comprehensive plans for repairing the upstream wave berm, including specifications for rock riprap installation, geotextile fabric placement, earthwork, and fence reconstruction.

Key project details include a controlled drainage area of 1,555 square miles, total storage of 868 acres, an effective dam height of 32 feet, and an overall dam height of 36 feet. The repair scope involves stripping topsoil, excavation, earthfill, placing geotextile fabric, installing rock riprap, backfilling, blending earthwork, establishing vegetation, and reconstructing fences. The project is sponsored by the Denton County Soil and Water Conservation District and Denton County Commissioners Court, with construction drawings approved for the year 2025.