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Home My WebLink AboutO. Site Utility Study• • • Max Miami Site Utility Study IA A O USE SPECIAL PE` IT SITE UTILITY STUDY By: B, A, & K GROUP, INC. 12000 SW 92 STREET MIAMI, FL 33186 786-488-1000 MAY 2006 • Site Utility Study Introduction The Max Miami project is a proposed 31 story mixed use ---commercial / residential multi -family high rise building to be built on a total of 1.58 acres of land located at 1600 NE 1 st Avenue. It is located in the City of Miami, Miami - Dade County, Florida (see site location map -Fig 1). The development includes a residential tower constructed on a parking garage/ commercial structure. It will consist of a total 28 residential apartments units, 31,534 square feet of commercial area, 250,000 square feet of office area, 168 rooms of hotel, 18,730 square feet / 1,671 seats of restaurant /cafe, and 1,139 parking spaces. Table 1, below depicts the details of the proposed project. Table 1: Project Summary Occupancy Unit Floor Area (sf) Residential 28 units 38,210 Commercial 31,534 Office 250,000 Hotel 168 rooms 134,296 Restaurant/cafe 1,671 seats 18,730 Total 427,770 Parking 1,139 Max Miami Site Utility Study 2 • • • Location Map Figure 1 I. Drainage Existing Drainage Presently, half of the site is undeveloped. On the other half of the site, there was a two story CBS building. The building has been demolished. There are some drainage catch basins and drainage systems on site. Proposed Drainage System The drainage systems for the proposed development will consist of drainage wells and exfiltration trenches, if possible, to facilitate on -site disposal of storm water runoff. The 5- year design storm event will be used to design the storm water management system, in accordance with Section D-4, "Water Control", of Part 2 of the Miami -Dade County Public Works Manual. Max Miami 3 Site Utility Study • • • Based on the preliminary drainage calculations, it is anticipated that two (2) 24" drainage wells will provide sufficient capacity to dispose of the design 5-year 24- hour storm water runoff generated by the proposed development, The final drainage design for the project should be in conformance with the requirements of the Miami -Dade County DERM Water Control Section, Florida Department of Environmental Protection, and the local, State, and federal regulatory agencies having jurisdiction over the project. !I. Water Distribution System The water mains owned and operated by the Miami -Dade Water and Sewer Department (MDWASD) in the vicinity of the project are shown in the Table 2. Table 2: Existing Water Mains Location Between Water Main(s) NE Miami PI NE 16 St and NE 17 St 2" NE 16 St NE Miami PI and NE 1 Ave 4" NE 1 Ave NE 16 St and NE 17 St 2"and 12" In accordance with MDWASD criteria, the owner will most likely be required to construct a new 12-inch ductile iron (DI) water main along NE 16 Street and NE 1 Avenue. The proposed 12" water main will likely be connected to the existing 12" water main at the intersection of NE 16 Street and NE Miami Place and the existing 12" water main at NE 1 Avenue A final determination of the points of connection and requirements will not be provided by MDWASD until a Water Max Miami Site Utility Study 4 • Service Agreement is requested by the owner. Water service meters will be installed by MDWASD forces at owner's expense. See Attachment for a copy of the MDWASD water atlas sheet for the project area. Ikl. Sanitary Sewer Collection System Table 3 depicts the sanitary sewer mains owned and operated by Miami -Dade Water and Sewer Department (MDWASD) within the vicinity of the project. Table 3: Existing Sanitary Sewer Mains Location Between Sanitary Sewer Main(s) NE Miami PI NE 16 St and NE 17 St 8" Gravity Main NE 1 Ave NE 16 St and NE 17 St 8" Gravity Main A copy of the MDWASD Sewer Atlas sheet has been attached. Since the proposed building usage exceeds 10,000 gallons per day, the owner will most likely be required to construct a new 12-inch sanitary sewer line. A final determination of the points of connection and requirements will not be provided by MDWASD until a Sewer Service Agreement is requested by the owner. A letter of availability from DERM and further coordination with MDWASD is needed to verify the proposed sanitary sewer service connection points and requirements for this project. MDWASD may require upgrades to the sanitary sewer system, but this can not be determined without a request for a water and sewer service agreement. The flows from the existing MDWASD sanitary sewage mains on NE 1 Avenue are received by MDWASD Regional Pump Station #2. As of May 26, 2006, this pump Max Miami 5 Site Utility Study • • station is operating under capacity as established by the USEPA, and is not under any type of moratorium, See Attachment for Pump Station Monthly Information. At this time, it is not anticipated that any improvements to the regional pumping and/or transmission systems will be required to connect the proposed Project. However, a final determination regarding the status of the existing transmission system and the need for possible improvements will not be made until the construction plans are submitted to the Miami -Dade County DERM Wastewater Section and a Sanitary Sewage System Capacity Certification Letter is issued. The flows created by this project have been determined and are shown in Table 4. Table 4: Water and Sewer Flow Generation Type of Occupancy 1 Quantity 1 Usage rate Total Average Daily Flow (gpd) Residential 28 units 200 gpd per unit 5,600 Commercial 31,534 SF 10 gpd per 100 SF 1,577 Office 250,000 SF 10 gpd per 100 SF 25,000 Hotel 168 rooms 100 gpd per room 16,800 -I Restaurant/cafe 1,671 seats 50 gpd per seat 83,550 Total Anticipated Flow 132,527 gpd IV, Solid Waste Generation Solid waste generated by this project will be collected in standard on -site containers for refuse and recyclables. Regular pick-up service will be provided either by private hauling companies and/or by the City of Miami Solid Waste Max Miami Site Utility Study 6 • • • Department, who will transport the waste to Miami -Dade County's or private disposal and recycling facilities. The volumes of solid waste projected to be generated are shown in Table 5. Table 5: Solid Waste Generation Type of Occupancy Phase I Quantity Usage rate Total Solid Waste Generated (Tons/Day) Apartment 28 units 5lbs/unit/day 0.070 Commercial 389, 560sf 61bs/1000sf/day Total Anticipated Solid Waste Generated 1.0169 12469 Max Miami 7 Site Utility Study • • • ATTACH E T Preliminary drainage calculations Max Miami 8 Site Utility Study • • Q=CIA Q = ((98%) (0.95) + (2%) (0,25)) (6.2) (1.58) Q = 9.16 cfs Q=4111 gpm Lowest grate elevation = 11.0 October water table = 2.5 Salt water differential = 1.5 Head = 11.0 — (2.5+1.5) = 7.0 Assuming that the well can percolate 700 gpm per foot of head Water dissipates per well = 7.0 X 700 = 4900 gpm Use safety factor of 2.0, water dissipates per well = 4900 / 2 = 2450 gpm # of drainage well needed = 4111 /2450 = 1,7 Use 2 wells. Max Miami 9 Site Utility Study • • • ATTACHMENTS Existing utility record Max Miami 10 Site Utility Study DW 2 PP. LO 08/16 • • • ATTACHMENTS Pump station Information Max Miami 11 Site Utility Study DERM 7-4"t:at Station Stati= c_7ype Owner Number .CD,Ded nuirbez° of ga11on (gpd) 132527 • 411 - • MAY, 2-5, 2006 I 2: FM i...*********4.,-************ A5Rm+ 30 0002 0 CD Downstream s NO a * 711') iS is Cur:rent Erf (Hrs) Delt LT (Rrs) OfL-1 docu.5 Proi ected, ET (RILE: 1ois *4.**A,**-k******-3,.***********-A. 4.83 0.09 1002.04 0.02 1002.06'