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JOSEPH W. SCHULKE, P.E. JODAH B. BITTLE, P.E. WILLIAM P. STODDARD, Ph.D., P.E. August 23, 2022 SCHULKE, BITTLE & STODDARD, L.L.C. CIVIL & STRUCTURAL ENGINEERING • LAND PLANNING • ENVIRONMENTAL PERMITTING Rich Szpyrka, Director Public Works Indian River County 1801 27th Street Vero Beach, FL 32960 Re: Providence Pointe Waiver Request - 15' SMA Dear Mr. Szpyrka: The Providence Pointe PD is currently under review for a modification to the approved site plan. Concurrent with the site plan application, the applicant is hereby requesting that the public works director approve a waiver or recommendation for a waiver from the 15' Stormwater maintenance area (SMA) typically provided around the perimeter of the stormwater management tract (IRC code section 930.07 (1)(m)(2) and (4)). This change is applicable to a portion of the development within Phase 2 that will be located at the SE corner of the site development, adjacent to 58th Ave/ 41 st street. The proposal includes a new residential concept, aptly named "East Lake BoatHouse" homes. These homes are proposed to be built adjacent to a 3 acre+- stormwater tract (pond) that is connected to an existing very large on-site 32 -acre lake. The connection will be made via a Con - Span culvert or equivalent, that is large enough to permit the passage of small boats (i.e. kayaks, canoes, row boats, paddle boards, etc.). This land plan proposes a unique boating and recreational lifestyle for the community, providing direct access to the 32 -acre lake and recreation amenity, and provides a unique home design with a traditional waterfront lifestyle. I have included several exhibits (attached), which illustrate this proposal and the alternate maintenance provisions as described below. The design of the stormwater tracts and lots for the Providence Pointe East Lake Boat House — Phase 2, propose the following: Stormwater Tract: • The stormwater tract (Tract 10) will be a manmade pond (approx. 3 acres) designed to operate as a standard wet detention system, and will be interconnected with an existing 32 -acre lake, and two other manmade ponds, that together will provide approximately 51 acres of surface water serving the entire Providence Pointe TND PD. • The pond will have a seawall at the stormwater tract / rear lot line boundary (pond perimeter). Top of wall (el. 20.25') will be set above the 25 yr. peak stage (el. 20.1' estimated) • The submerged lake bottom is designed to have a flat 15' wide maintenance shelf at el. 15.0', which is approx. 3' below normal water level (NWL = 18.0 ft.). This flat shelf will extend from the seawall 15' waterward then the lake bottom slopes at 4:1 to el. 12.0 ft., then 2:1 or flatter to the proposed lake bottom. 1717 INDIAN RIVER BLVD., SUITE 201, VERO BEACH, FLORIDA 32960 TEL 772 / 770-9622 F.vc 772 / 770-9496 EMAIL info@sbsengineers.com 27 8