SUBJECT:
Title
Highland Belleview East - Waiver Request to Improvement Plan in Review
7730 E Hwy 25 Belleview
Project #2011080002 #31005 Parcel #39196-003-01
Tillman & Associates Engineering
LDC 6.13.6.A(3)(c) Stormwater Quality Criteria
CODE states dry retention systems that have a depth of six feet or less, measured from top of bank to pond bottom, with side slopes that are no steeper than 4:1 and sodded bottoms
APPLICANT requests a waiver is requested for 7' pond depths. The proposed ponds are 7' deep with 4:1 sodded side slopes and bottoms. The additional 1’ of pond depth is not a significant departure from code criteria, which limits pond depths to 6’. The ponds were sized to retain back-to-back 100-year/24-hour storms without discharge. Additionally, ponds meet SJRWMD treatment volume recovery criteria.
LDC 6.12.12.D Sidewalks
CODE states at the discretion of the Development Review Committee, in lieu of construction along external streets, the developer may pay a sidewalk fee to the County in an amount necessary to complete construction. This amount shall be determined by the project engineer and approved by the County with payment required prior to final plan approval. The County may use these funds toward the construction of sidewalks throughout the County based on priorities established by the Board.
APPLICANT requests waiver to pay a fee in lieu of constructing the sidewalk along C-25.
LDC 2.12.8 Current Boundary and Topographic Survey
CODE states Current boundary and topographic survey (one foot contour intervals extending 100 feet beyond the project boundary) based upon accepted vertical datum. Surveys will be less than 12 months old and accurately reflect current site conditions, meeting standards set forth in Ch. 5J-17 FAC. Alternate topographic data may be accepted if pre-approved by the Marion County Land Surveyor.
APPLICANT requests a waiver is requested for survey more than 1 year old and using LiDAR for offsite areas. Site topography is consistent with the survey provided which was performed by JCH Consulting Group on 6/24/2022.
LDC 6.12.2.A Right-of-way Width
CODE states Right-of-way shall be platted or dedicated, meeting the minimum right-of-way width established in Table 6.12-1, to provide for the necessary access and other needed infrastructure improvements supporting the proposed development. Right-of-way can be provided by easement if approved by DRC.
APPLICANT requests a waiver as roadways will remain private & row width will be 30' wide with a 15' drainage and utility easement for a total width of 60'. This project is located within the City of Belleview Utility jurisdiction and they have accepted the proposed r/w and easement configuration.
LDC 6.13.3.D(1) Types of Stormwater Management Facilities
CODE states residential subdivisions. Retention/detention areas shall have side slopes no steeper than 4:1 (horizontal: vertical) with a minimum berm width of 12 feet stabilized at six percent grade maximum around the entire perimeter of the facility. Side slopes steeper than 4:1 may be allowed with additional accommodations related to public safety, maintenance, and access upon approval by the County Engineer or his designee.
APPLICANT requests a waiver to reduce berm width from 12' to 5'. The ponds will be privately owned and maintained by a HOA.
LDC 7.1.3.J(1)(b) Drainage Construction Specifications
CODE states the use of reinforced concrete pipe shall conform to FDOT Standard Specifications. Other pipe material may be allowed if on the FDOT Qualified Products List (QPL), and with the approval of the County Engineer. For projects that are to be maintained by the County, justification for use of material other than reinforced concrete pipe shall include, but not be limited to data and values of water levels, soil conditions, resistivity, pH, chlorides and sulfates. For County projects, a value engineering proposal shall be provided with the justifications for the use of other than reinforced concrete pipe.
APPLICANT requests a waiver to use alternate pipe materials in lieu of RCP. Pipe material will be high-performance polypropylene (PP) or high-density polyethylene (HDPE).
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