Specifications include, but are not limited to: Storm sewer system inventory and inspection: a. Develop and compile an inventory of all parts of the DelDOT owned stormwater drainage system statewide. b. Locate the drainage system using Global Positioning System (GPS) techniques, with sub-meter accuracy.2 c. Inspect all respective parts of the Departments conveyance system to verify inventory data, structural integrity and identify maintenance needs. Work is to include external and internal visual inspections of all drainage inlets, catch basins, manholes, junction boxes, flow diverters, stream channels, ditches, and pipes. d. Report any odors or visual clues that would indicate the presence of non-storm water discharges. e. Mark each drainage inlet upon completion of the inspection work with a Departmental approved decal. Each such mark shall display a public message related to protecting water quality. Presence of the mark will indicate progress made under this agreement.
