Project Location: Collier County, FL
RWA has completed professional planning, engineering, and surveying services for a mixed use community that will include 1,999 residential units, an 18-hole golf course and a small commercial area. The property includes wetland and upland conservation areas that cover more than 50% of the project area and requires the construction of a portion of the Lely Area Stormwater Improvement Plan (LASIP) designed by Collier County and their consulting team. The largest component of this plan is the relocation and widening of the Lely Main Canal, which is the outfall for a very large upstream watershed area. A significant modeling effort addressed onsite stormwater issues and included the Harvey Harper methodology for water quality contaminants. The Lely Main Canal required the design of the 1,600 ft. long broad crested weir to improve upstream drainage in the highly developed areas of the watershed and prevent downstream salt water intrusion and dewatering of the local groundwater aquifer. RWA finalized the conceptual design for the Lely Main canal; realigned the routing to provide a more natural watercourse; and designed extensive littoral plantings for water quality enhancement.
For this project, the RWA team is responsible for all the entitlement work related to the zoning of the project, the preparation of a conceptual site plan and master plan, and all permitting associated with obtaining an ERP permit and all local permitting required for a mixed use master planned community.
Conceptual planning includes potable water system modeling and analysis of water main circulation and five protection demands. Sanitary sewer master planning includes development of lift station parameters for a manifolded system and preliminary design of a master lift station to serve the entire 2,400-acre development. Stormwater management modeling was used to design a weir and spreader system for discharge into the Rookery Bay National Estuarine System in addition to providing an effective stormwater system to preserve the significant wetland community on the site.
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