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Home My WebLink AboutSite Utility StudyTUSCAN PLACE MAJOR USE SPECIAL PERMIT SITE UTILITY STUDY LJ By: Fraga Engineers 38303 Shipping Avenue Miami, Florida 33146 October 2003 40 Tuscan Place Site Virility Study TUSCAN PLACE Site Utility Study Introduction The Tuscan Place Phase l Project will include the construction and development of a 13 -story apartment tower and a separate 6 -level parking structure located in the Mock bounded by N.W. Stn Street and a Street and by N.W. 0t" Avenue and �h Avenue in Miami. The main building will be comprised of residential units, as well as associated community space. The total site for phase I covers approximately 2.0 acres. The Tuscan Place Prase II Project will be located in the additional 1.4 acres, which comprise the total tract of 3.4 acres_ The second phase will be comprised of 202 residential units and a separate open parking garage attached to the Phase I garage. Drainage Existing Drainage This site is currently occupied by several one-story buildings to be removed, and the existing drainage system consists of some sparsely located inlets and sections of interconnected trench drain. Also some drainage consists of surface percolation with potential overflow to the adjacent City right -to -way during more extreme rainfall events. Proposed Drainage System The primary drainage system for the project will consist of french drains, which will allow the storm runoff to be fully contained and disposed of on site. The project will be designed consistent with a 5 -year design storm, DPRM Water Control section D-4, part 2 of Miami -Dade County Public Works Department. It is currently anticipated that three hundred eighty linear feet of french drain will provide sufficient capacity for the project_ The final drainage design for the project will provide a drainage system consistent with the above criteria and consistent with all approval and permitting requirements for the project_ Preliminary drainage computations for the project are provided in Table 'I below, which includes the basis for design. Tuscan Place Site Utility Study 0 TUSCAN PLACE Site Utility Study Table 7 Drainage Calculation Runoff Generation Total Net site Area 148,104sf = 3,40 Acres (Not including exterior Wall Areas) Total Impervious Areas (Incl, Wall areas) 115,874 sf 2.66 Acres Roof Area 71,508 sf = 1.64 Acres Exterior Wall Area (113 vertical Wall Areas) 44,366 sf = 1.02 Acres Pervious Area (green areas) 55,986 sf = 1.285 Acres Average Runoff Coefficient Impervious Site Area = 2.66 X 0.35= 2.527 Pervious Site Area 1.285 X 0.30 0.3855 Average Runoff Coefficient, C = (2.527 + 0.3855) 12,744 = 1.0614 Design Storm 5 year Return Frequency Time of Concentration 10 minutes Rainfall intensity 6.10 in1hr Peak Runoff Q = CIA = (I M14)(6.10)(2.744)= 17.767 cfs For percolation rate listed, the 15" perforated pipe french drains will absorb 21 gprMinearfoot so at 21 gpmf448.8=.174579 cfs To absorb 17.787 efs, 384 linear feet of french drain are required. Tuscan Place Site Utility Study 3 TUSCAN PLACE Site Utility Study 11. Water Distribution System The Miami -Dade Water and Sewer Department (M-DWASD) owns and operates the following water mains in the vicinity of the project. (See Water Atlas attached) Location Between Water Main(s) N.W. 6 Street N.W. 7 Ave to N.W. 6 Ave 8" North side of proj25 of N.W. 7'h Avenue N.W. 5 Street N.W. 7 Ave to N.W. 6 Ave 6" South side ofproject) N.W. 7 Avenue N.W. 6'"5t and N.W. e St. 6" est side ofproject) N.W 6 Avenue N.W. 5 SL and N.W. 6 St. 12" (East side 9!project) A water main extension will be required along N.W. v'�' Street. 111. Sanitary Sewer Collection System . The Miami -Dade Water and Sewer Department (M -DASD) owns and operates the following sanitary sewer mains in the vicinity of the project. (See Sewer Atlas attached) • Location Between Water Main(s) N_11V. e Street N.W 7 Ave to N.W. 6 Ave 8" (Gravity) to 338 feet east North side of ro'ect of N.W. 7'h Avenue N.W. 5 Street N.W. 7m Ave to NW 6 Ave 8" (Gravity) South side of ro'ect N.W, 7 Avenue N.W. 5 St. and N_W_ V4 St. 16" (Gravity) West side of the ro'ect N.W. Avenue N.W. 5 St. and N.W. e St. 8" (Gravity) f=ast side of rra'ect The Tuscan Place Project is projected to create a water demand of 54500 gallons per day (GPD) as per Chapter 24 of the Code of Miami -Dade County, Section 24- 13. There is adequate sewer capacity to serve the project. in order to accommodate for this demand, both the water and sanitary sewer connections to serve the project shall be coordinated with the Miami -Dade dater and Sewer Department (M-DWASD) to ensure that the existing system has adequate capacity. Tuscan Place Site Utility Study 4 TUSCAN PLACE Site Utility Study IV. Solid Waste Generation Solid waste generated by this project will be collected in standard ern -site containers for refuse and recyclables. Regular pick-up service will be provided either by private hauling companies andlor by the City of Miami Solid Waste Department, who will transport the waste to Miami -Dade Counties or private disposal and recycling facilities. The volumes of solid waste projected to be generated by the project are shown in Table 4, below Table 4 Project Solid Waste Generation Residential 354,711 sq. ft. @ 41bs1100 sq.ft./day = 14,188lbs/day V. Gas In the event that gas is required for the project, there is adequate capacity to handle any projected load. There is a 12" gas main on NW 6h Avenue, between NW Wh and e Street, as well as a 12" gas main on NW 5"' Street, between NW 7' Avenue and 6' Avenue. (See attached gas service letter) VI. Electrical Florida Power and Light Company has confirmed that there is sufficient capacity in the area for the proposed project. A vault will not be required. The project will be served by on-site toad -mounted transformers. Tuscan Place Site utility Study 5 338 'i I ER 0 744 OPITErl,, ATLm (F -14d ) 0 • No 828 829 Bao a2 3 a36 K 7C � 4IC4 944 3349 2 L 3723 322 22 is JS4276 * 33pA S C7 i704 329 3297 29.5 2 �0a y y x y °P 26 HW l ST 27 6 3 ag HGP ovap BB ? HE z s� 10 3 s 3 a 6007 3 S 94049 0 8 2 „� .o r. 3081 i: nov Ovsa $ 1 5848 ka 7 1 8270 'r 7 2 ROP OV7l'A 0�` - l7(-- 6 50 WEN NW A 3533 23 1 3Q 32 1 8' 3Q87 4828 40 OBQ ''4828 Ii 2-70 3 1 1 t 3037 3490 c 42 47 39 46 47 8 6480 2 38 3048 A826 1 5�7a 1 1 1 •00r 3wi CIT_ 4 284 :. 10"" 10w 5x70 20 6 3 4 3i 6156 43 103 10 av¢ 3 8A6488 so `� 18 HOP avFa 8 3078 6007 3038 3035 3018 1 M 12 s g 2868 1 to 7661 3104 282 8B 287 28 362 60�� 280 Y HAP a:n+A 288$„ gr. 164 OVE 28 8 dSB NaP8827 a 1 3018 a 289 fJ $FAQ )8`� 0 S 61 1 a F.9 ,� 0 ... .:. `` 42 2979 8641 81 1 6982 567a 79 FYX. r0 A R n 1 !88 3 f S �wE rL ATLAS ( r--. 14) •