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Home My WebLink AboutIII. Tab 3. Site Utility StudyCOAL LAND DEVELOPMENT T RAFF'C AND TRANSPORTATION BISCAYNE PARK PHASES 1 AND II MULTI USE DEVELOPMENT SITE UTILITY STUDY MAY 2007 8550 W. FLAGLER STREET, SLH TE 113, WANE. FLORIDA 33 144 TEL: (305) 551 626) 9 FAX: (305) 551-4542 Emrnaf: vsn'vsneng.corn Since 1989 General CML LAND DEVELOPMENT TRAFRO AND TRANsPoRTA-noN TABLE OF CONTENTS Page 2. Storm Drainage System .... .. ...... 5 7 Water Distribution System ..... 4. Sewer Collection System 9 5. Solid Waste Generation 11 EXHIBITS: „ Location Map 12 Storm Drainage Well Calculations 14 "C- MD-WASD Atlas (Sewer) ..... 19 MD WASD Atlas (Water) 20 Proposed Water Use Calculations 21 DERM Pump Station Monthly Report 22 "D" Solid Waste Generation Calculations ....... 25 !s!vtlgi! 1,P-! Since 1989 CMi LAND DEVELOMENT TYWHC AND TRANSPORTATiON BISCAYNE PARK PHASES 1 AND -MULTI USE DEVELOPMENT SITE UTILITY STUDY 1, General A. Project Location and size: The proposed project consists of a Multi -use Facility to be constructed at an approximately 2,02 acres (Net Lot Area) downtown Miami, The project limits are: to the west NE 2nd Avenue to the north NE 25t" Street to the east Biscayne Blvd to the south NE 24th Street. The property being in Section 30, Township 53 South, Range 42 East, Miami - Dade County, Florida. B. Pre -Existing Conditions: The entire site consists of 17 different lots, in pre-existing condition the site being used as commercial establishment totaling approximately 8,472 sf of usable space and nine lots were being used as residential units. MIL LAND DEVELOPI4ENTT TRAFFiC AND TRANSFORTAnON Sinc-e _1989 C, The proposed project build -cut will be as follows: PHASE! Condominium Apartments 214 Units Commercial Retail 6,843 sf Office 12,238 sf Restaurant 100 Seats PHASE 11 Commercial Retail 9,952 sf Office 122,100 sf Restaurant 100 Seats 4 01'01 LAND DEVELOPMENT TRAFRC Atit, TRANSPORTATiON Since 1989 4`") , Storm Drainage System A. - xisting Storm Drainage System: Roadway storm drainage systems presently exist along the streets surrounding the proposed project. These systems are owned and maintained by the City of Miami and the Honda Department of Transportation. The site, in its existing or proposed conditions, does not or will not contribute any significant amount of storm water run-off into the Public Roadway System. No significant improvements to the existing Roadway Drainage System are expected as a result of this project other than some possible inlet modifications associated with the street or sidewalk improvements. B. Proposed On -Site Storm Drainage System: The proposed storm drainage system to serve this project will be designed to fully contain on -site the storm water run-off and to meet the Miami - Dade County Department of Environmental Resources Management (DERM) and The Florida Department Of Transportation (FOOT) requirements, This will be accomplished by means of deep drainage wells. No off- site run-offwill be generated from the site. The total contributing site area and 30% of the building wall area exposed to the rain will be included in the Disposal Well System design calculations. An impervious coefficient of 0.95 will be used for the purpose of this study. Based on information provided by an experienced well drilling company for other projects in the vicinity, an approximate well discharge rate 750 gpm per foot of head can be expected. Storm water from roofs, internal driveways, walkways and parking areas will be conveyed by means of a collection system to sediment tanks sized to meet the detention volume requirements prior to discharging into the Well System. Additional Water Quality pre-treatment and Pollution Retardant Baffles at the catch basins will be provided at areas subject to vehicle traffic. 5 CIVIL LAND LOF WT TRAFRC AND ?RARSPOR 'fi s ON Since 1989 C , Required number of Wells: The proposed wells will be designed to maintain the site dry during the 5 year-24 hour storm, to keep flooding below the perimeter grades during the 25 year-3 day storm and to keep flooding below the minimum floor elevation during the 100 year- 3 day storm. Also, the wells will be designed to contain the entire run-off for the Critical Storm Event to meet the FDOT requirements since the project is adjacent to an FDOT facility. Based on the attached calculations, a total of one (2) — 24" diameter storm drainage wells are required to provide full on -site retention for this project depending on the actual yields obtained during the well drilling operations. For dell Disposal System calculations refer to attached Exhibit "B". • LAND DEEL KT TRAFFIC AND T Nsro` A'rI.eN 3, Water Distribution System A. Existing Water System Eacifities: Miami -Dade Water & Sewer Department (i D-WASD; owns and operates the following domestic water facilities in the vicinity of this project: An existing 12-inch and an exiting 2-inch water main on NE 25Th Street that run along the entire northerly boundary of the property. The 12- inch water main ends a short distance west of Biscayne Blvd and turns into a 2" water line. An existing 12-inch water main on NE 24th Street that run along the entire southerly boundary of the property. An existing 16-inch water main on Biscayne Blvd. that run along the entire easterly boundary of the property. An existing 6-inch water main on NE 2n° Avenue that run along the entire westerly boundary of the property. These existing water mains can be used to provide fire protection domestic and landscape irrigation service for this project. This project will have to be reviewed by Miami -Dade Water and Sewer Department (MD-WASD) to determine if additional extensions. That will be done at the time of permitting. 7 • CARL LAND DEVELOPMENT TRAFFIC AND RAN sPORTATON Since 1989 B, .Req ,iced Water System improvements: it appears that, based on the records provided by Miami -Dade Water and Sewer Department (MD-WASD) improvements to the existing water mains will be required to support the proposed development. MD-WASD may require additional system improvements to upgrade the 2" water main on NE 25`n Street and also to upgrade the existing 6" water main on NE 2nd Avenue to a 12-inch main to provide adequate fire flow to the proposed project. This will be determined during final design. C. Anticipated water use: The water use requirements for this project are calculated based on the build -out information previously described. An anticipated flow demand of 67,074 GPD is expected from this project. The previous flow demand from the existing buildings is 3,997 GPD. The net increase in demand from this project is 63,077 GPD. For determination of anticipated flows see Exhibit "C„ 8 CML LAND DEVELOPMENT TRAFFie M4 TPANSPOPTATVON Since 1989 4, Sewer Collection S s e A. Existing Sanitary Sewer System Facilities: Miami -Dade Water & Sewer Department (MD-VVASD) owns and operates the following sanitary sewer facilities in the vicinity of this project: • An existing 72-inch gravity sewer line along Biscayne Blvd. that runs along the entire easterly boundary of the project. An existing 8-inch gravity sewer line along Biscayne Blvd, that runs along a portion of easterly boundary of the project. ▪ An existing 8-inch gravity sewer line along NE 25t" Street that runs along a the entire northerly boundary of the project. An existing 30-inch gravity sewer line along NE 25th Street that runs along the entire northerly boundary of the project. • An existing 8-inch gravity sewer line along NE 24' Street that runs along the entire southerly boundary of the project. • An existing 12-inch gravity sewer line NE 2nd Avenue that runs along the entire westerly boundary of the project. • An existing 16-inch Force Main line NE 2nd Avenue that runs along the entire westerly boundary of the project. These lines collect all the sanitary flows from the general area and direct them to MD-WASD Pump Station # 30-0002. 9 L LAND DEVE1Of1.EN7 TRAFFIC AND TRANSPORTATION Since 1989 B. Required Sanitary Sewer System requirements: Based on the records provided by Nlia '-Dade Water and Sewer Department (MD=WASD) the existing sewer mains appear to be adequate to support the proposed development. No additional sanitary system improvements are expected. C. Transmission Capacity Requirements The Wastewater generated by this project will be conveyed to MD-WASD Regional Pump Station No. 30-0002. This is p major station with a yearly NAPOT of 5.60 hours per day as of April 2007 according to DERM. (See Exhibit "C"). The impact of this project on the ET of this station is 0.04 hours. The expected ET will be 5.64 hours which is less than the allowed 10 hours. Pump Station No. 30-0002 at this time has sufficient available capacity to support this project. 10 CIVIL LAND DEVELOPMENT MAPFIC AND TRANSPORTATION Since 1989 5. Solid Waste Generation A. Solid Waste Generated by this project will be collected in standardized on - site containers for refuse and re-cyclables. Either hauling companies and/or the City of Miami Solid Waste Department will provide regular pick- up services. The anticipated daily solid waste generation for this project is CY per day. (See Appendix "D"). 11 CYJIL LAND DEi«PMEn 7 TBAFF€C AND TRANSF .,UTA11oN EXHIBIT "A" Location Map • 12 • r, isaffi ,ES CIVIL LAND DEVELOPNENT TRAFFIC A TRANSPORTATiON •PROJECT LOCATION Since 1989. CIVIL LAND DEVELOPMENT TRAFFIC AND WNSPORTAMON EXHIBIT "B" Storm Drainage Calculations 14 fl NLi `,4 OM Since 1989 PROJECT NAME DRAINAGE AREA., SITE DATA: CML LAND DEVELOPMENT TRAFFIC AND TRANSPORTATION BISCAYNE PARK PHASES & II 5/7/2007 ENTIRE SITE Page 1 SITE AREA = 2.02 ACRES BUILDING FOOT PRINT = 200 FT BUILDING HIGHT = 190 FT BUILDING WALL AREA = 0.87 ACRES CONTRIBUTING BUILDING AREA = 0.26 ACRES CONTRIBUTING AREA = 2.28 ACRES NUMBER OF WELLS = 2 REQUIRED VOLUME FOR 90 SEC. DETENTION TIME: CONTRIBUTING AREA PER WELL = 1 14 ACRES RAINFALL INTENSITY (90 SEC) = 6.4 IN/HR RUN OFF VOLUME (90 SEC) = 520 CF DETENTION VOLUME PROVIDED: TANK LENGTH = 16.00 FT TANK WIDTH = 7.50 FT TANK BOTTOM ELEV = =2.50 NGVD TOP OF WELL CASING ELEV = 2.50 NGVD STORAGE DEPTH = 5.00 FT DETENTION VOL PROVIDED = (per well) 600 CF TOTAL DETENTION VOLUME = 1,200 CF PROJECT NAME DRAINAGE AREA or'i!. LAND DEVELOPNENT 3RAFFiC AND TS ,A#4SIoRTAT}oi Since 1989 BISCAYNE PARK PHASES I & II 5/7/2007 ENTIRE SITE Page 2 DRAINAGE WELL DATA: WELL DIAMETER = 24 INCHES WELL DISCHARGE RATE PER FT OF HEAD = 750 GPM AVAILABLE HEAD = 5.00 FT DISCHARGE RATE PER WELL = 3.750 GPM CUMULATIVE INFLOW/OUTFLOW DATA: STORM FREQUENCY C FACTOR DRAINAGE AREA # OF WELLS PROVIDED TOTAL DISCHARGE RATE = TOTAL DISCHARGE RATE = SEDIMENT TANK STORAGE = F.D. STORAGE = SOLID PIPE STORAGE = INFLOW-EXFILTRATION TABLE 5 YEARS 0.78 2.28 ACRES 2 7.500 GPM 16.71 CFS 1.200 CF 0 CF 0 CF TIME MIN INTEN. IN/HR CUM.INFLOW CF SYST. STO. CF A _ INFL. CF WELL DiSCH. CF OVERFLOW' j CFS 8 6.41 5473 1200 4273 8021 j -7.81 10 6.17 6587 1200 5387 10027 -7.73 15 5.64 9040 1200 7840 15040 -8.00 20 5.20 11109 1200 9909 20053 -8.45 30 4.50 14406 1200 13206 30080 -9.37 40 3.96 16915 1200 15715 40107 -10.16 60 3.20 20484 1200 19284 60160 -11.35 90 2.48 23835 1200 22636 90241 -12.52 12€0 2.03 25961 1200 24761 120321 -13.27 150 1.71 27427 1200 25227 150401 [ -13.80 180 1.48 28501 1200 27301 i 180481 -14.18 200000 180000 160000 120000 100000 O 0 20 40 CUMULATIVE INFLOW-EXFILTRATION 60 80 100 TIME (MIN) CUMULATIVE INFLOW 120 140 '160 180 Since 1989 CIVIL LAND oninort.va TRAFFIC AND TRANSPORTADON EXHIBIT "C" MD-WASD Sewer Atlas MD-WASD Water Atlas Proposed Water Use Calculations DERM Pump Station 30-0002 Status 1 8 N[ z1 SF n f..._...7\ 1.13 7,8 44 I NCJP Mir: 2-, n 1 �Fs SUBJECT PROPERTY ., i I 1.5 \ -I 1 on 3 L S 3 ti 1 04 106 107 1 _▪ 240.5 2F301 799 7 12HOC / 1 3ti 112 1E1 41"1141: 671101 2.9 NE: 24- 11I 0 6 _—. �i D s 7 .2 711 NF 29;if 2772 11 '701.1 NE r l20C) 1 (J{S44 5450 5d� �/ 51 £S a 7 rich......_._ 6 66 • 832 7 • t 31 _ 7 \ 1.... 2754 J \/1 5136 1 13 , 1 �s.r) I, 'I 5 I33� /1:- 1 130 1 27 t, I i<_�rt _. '--).kill) ['VT.:: rt a i- Q.9A7' 12z \ !ti i7€ t131\ 1 i41 1E5.4<�[`t ).4.1i 1 �.. i ▪ 'I;5 _ l ,.,. / • 1 0 2 Sfl 1 1 1 _...._ 537 1 -73 'i s5 441 \11 //i \..... 25 63 Fla n" a 3.3 01 61? � , '\ 4 6b l t I 1 ki 1 { .. 14 E5 l(7 :Lau 'F1[1F -7 202E; .775 1 74-41 \_6 ../ 2610 1537i )51 TJ-7 i 7- 82.2 1 r7/3NF- 71 5T I J i .....-. ' 2 7 7 E3 2.7711 4 7 4.0 'All 7 1 1 0 NC: 22 TER 441 F07 7 7 3 tf \ 3F3 MD-WASD SEWER ATLAS • 7;:i4 120 1.21 32 3) a) 33213 66I NI:27SI /r [is SUBJECT PROPERTY Eton (-) VIE 75 5-1- Ni 24 811 -- ( n \J1 0 Pik _NE 20 :31- 1.1 27 o f - 0887 2 1.324,4) 2"- 0860 4 Rd (704 I._ 1'1337 LEEE P / j11337 7010 751f1 MD-WASD WATER. ATLAS 75t 7 a •<' 92 22 TER 39 0 GML LAND DEVELOPMENT TRAFEID AND TPANSPORTATYDN PROPOSED WATER USE CALCULATIONS PROJECT BVSCAYNE PARK PHASE ! AND H. DATE: 5-May-07 TYPEDING USE AREA RATE [sti [gpdisti Units; gpdiunit; AU [gpd] PROPOSED FLOWS: PHASE I Residential Apartments Retail Commercial Office Restaurant (number of seats) - PHASE 11 Retaif Commercial Office Restaurant (number of seats) SUB -TOTAL PREVIOUS FLOWS: Retail Commercial SF Residential SLJB-TOTAL 214 200 42.800 6,843 0.05 342 12„238 0.10 1,224 100 50 1 5,000 9,952 122,100 100 8,472 9 0.05 0.10 50 498 12,210 5,000 67.074 0,10 847 350 3,150 3,997 NET NCREASE: 63,076 655C W. FLAG LER STREET, SLUE 113, MAW; FLORIDA 33144 TEL: (305) 551-6267 , FAX: (305) 551-4542 E-rnaTh vsn@vsnena.com °S2 ?d: ate NAPOT Estimate Report Pump Station Number: 3 : -Dd This is offic' doc=7,nt. 00.0 TOP Scazi= : : Status 7!-Trs OK Proposed Sow: 6307E Pro Delta ec Hr CapacityL 56.40 22 s.�ef'sL LAND =' OEVELO 1 TRAFFIC AND " hSK2P,TA N EXHIBIT "D" Solid Waste Generation Calculations f f 23 . . . . . Since .1.989 OWIL LAND DEVELOPMENT TR,VflC AND TRANSKFA .110N PROPOSED SOLID WASTE CALCULATIONS PROJECT BISCAYNE PARK PHASES AND 11 DATE: 5-May-07 TYPE OF BULDNG USE AREA/UN TS RATE SOLID WASTE [sf] I [1b/s9 GENERATED [seats] lb/seat, lbj SOLID VVASTE GENERATED [tons] PHASE! APARTMENT UNITS RESTAURANT OFFICE RETAIL COMMERCIAL PHASE II RESTAURANT OFFICE 214 100 14,000 7,000 8 1,712 5 500 0.025 350 0.025 175 100 5 8,472 0.025 500 212 0.86 0.25 0.18 0.09 0.25 0.11 NET INCREASE: 3,449 1,72 ANTICIPATED SOLID WASTE VOLUME AT 7 CY PER T /2 CY / DAY B50 W. FLAGLER STREET, SUITE 113, MIAMI, FLORIDA 33144 TEL: (305) 551-6267 FAX: (305) 551-4542 vsn@ysneng.corn Since 1.989 LAND DEVELOPMENT TRAFF)C AN TRANSPOKTATION EXHIBIT D" Solid Waste Generation Calculations s 25 s CML LAND DEVELOPMENT TRAFFIC MD TRANSPORTATION .cince 1989 PROPOSED SOLID WASTE CALCULATIONS PROJECT BISCAYNE PARKPHASESANDU DATE 7-May-07 TYPE OF BUILDING USE PHASE APARTMENT UNITS RESTAURANT OFFICE RETAIL COMMERCIAL PHASE II RESTAURANT OFFICE AREA/UNITS I RATE [sf] 1[Ib/sf] [seats] (lb/set] 214 100 14,000 7,000 8 5 0.025 0.025 100 5 8,472 0.025 SOLID WASTE SOLID WASTE GENERATED GENERATED [lb] [tons] 1,712 500 350 175 500 212 0.86 0,25 0.18 0.09 0 25 0.1 1 NET INCREASE: 3,449 1.72 ANTICIPATED SOLID WASTE VOLUME AT 7 CY PER T 12 CY / DAY 26