Planning and engineering services to include the following scope of work: • Modelling drainage patterns on the island to account for the 90th percentile King Tide condition and 100 year-storm event scenarios. • Inventory existing storm drainage system to include location, size/capacity, and condition of each storm drain. • Based on this assessment, list immediate maintenance recommendations to maximize the current functionality of the existing drainage system. • Preparing technical drawings and specifications of project concepts identified in the development of this Drainage Improvement Plan. • Identify applicable innovative nature-based solutions including creekbank elevation practices and other green infrastructure techniques. • Outline any state or federal permitting considerations pertaining to each project concept proposed in the Drainage Improvement Plan. • Prepare current cost estimates for the implementation of each proposed infrastructure upgrade project. • Identify regular and long-term maintenance considerations of each proposed project. • Conduct at least one public education workshop/presentation to present Drainage Improvement Plan findings prior to adoption.
