Specifications include, but are not limited to: Cleaning and repairing of storm pipes, structures, and appurtenances located within Grayfield Subdivision in the City of Grayson, Georgia. Grayfield's storm pipe system consists of approximately 19 manholes (catch basins), 18 headwalls, and 2,100 linear feet corrugated metal pipe with diameters ranging from 18 to 66 inches. All of the manholes need cleaning and sealing at joints. A couple of headwalls are separating from the pipes, and need to be reattached. All headwalls need clearing around them and rip rap outlet protection installed. Most of the pipes have the bottom full of silt, debris, and rip rap. Several of the pipes have rusted bottoms. The approach that the City is taking is to have the pipes cleared of debris, hydro jet cleaned; joints sealed, rusted bottoms repaired, and where needed pipes spray lined with either a geopolymer or polyurea system. The work also includes restoring/repairing the detention pond dam.
