Loading...
HomeMy WebLinkAboutIII Tab 3 - Site Utility Study• June 2005 The Boulevard MAJOR USE SPECIAL PERMIT SITE UTILITY STUDY • PREPARED FOR Flagler Hudson, LsL.C. KHA Project No.: 042611000 Prepared by:: KIMLEY-HORN AND ASSOCIATES, INC. 1691 Michigan Ave. Suite 400 MIAMI BEACH, FL 33139 Kir iev-Horn and Associates, !TIC. • • • • The Boulevard Site Utility Study The Boulevard 238-274 NE 34th St. MAJOR LJ SE SPECIAL PERMIT SITE UTILITY STUDY PREPARED FOR Flagler Hudson L.L.C. by: KIMLEY-HORN AND ASSOCIATES, INC. 1691 Michigan Ave. Suite.400 MIAMI BEACH, FL 33139 JUNE 2005 Page 1 • • The Boulevard Site Utility Study Introduction The Boulevard project is a proposed 15 story mixed-use/residential multi -family high rise building to be located on an approximate 0.85 +/- acre lot located on the southwest corner of NE 34th Street and Biscayne Boulevard, 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 structure. It will consist of a total 127 residential apartments units, 5 retail units and approximately 193 parking spaces. Table 1, below depicts the details of the proposed project. Retail Table 1: Project Summary 5 12,970 Residential 127 135,966 Total 132 148,936 Parking 193 I. Drainage Existing Drainage Presently, the site is undeveloped (sodded) on the east side of the property and the existing building on the west side of the subject site is to be demolished. There is no existing drainage system on -site. The Boulevard Site Utility Study Page 2 • • The Boulevard Site Utility Study Figurel: Site Location Map NE 32ND ST 1 NE 3' ST ST NE 30TH TE NE 30TH ST NE 29 T H[ TE NE 29TH ST Page 3 • • Proposed Drainage System The drainage system for the proposed development will consist of drainage wells and exfiltration trench, 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. Based on preliminary 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. Preliminary drainage computations for the project areas are provided in Attachment "A" Preliminary Drainage Well Calculations, which includes the basis for design. 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 other local, State and federal regulatory agencies having jurisdiction over the project. II. 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 3. Table 3: Existing Water Mains Location:' Between' Water Main(s):; NE34tStand NE33rdSt. Biscayne Blvd. 16" D.I. NE 34t St Biscayne Blvd. and NE. 2nd Ave. 4" D.I. The Boulevard Site Utility Study Page 4 • • In accordance with MDWASD criteria, the owner will most likely be required to construct a new 12-inch ductile iron (DI) water main along the frontage of the property on NE 34th St. The proposed 12" water main will likely be connected to the existing 16" along Biscayne Blvd. A final determination of the points of connection and requirements will not be provided by MDWASD until a Water and Sewer Agreement is requested by the owner. Water service meters will be installed by MDWASD forces at owner's expense. See Attachment `B" for a copy of the MDWASD water atlas sheet for the project area. III. Sanitary Sewer Collection System Table 4 depicts the sanitary sewer mains owned and operated by Miami -Dade Water and Sewer Department (MDWASD), within the vicinity of the project. Table 4: Existing Sanitary Sewer Mains Sanitary Sewer Main(s) Biscayne Blvd. NE 34th St and NE 33rd St. 60" Interceptor Main 8" Gravity Main NE 34`a St Biscayne Blvd. and NE. 2'a Ave. 8" gravity main A copy of the MDWASD Sewer Atlas sheet has been attached. The proposed on --site sanitary sewer system for the property can probably be connected to either or both of the existing public gravity mains. A letter of availability and further coordination with MDWASD is recommended to verify the proposed sanitary sewer The Boulevard Site Utility Study Page 5 • • • 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 agreement. The flows from the existing MDWASD sanitary sewage mains on Biscayne Blvd. and NE 34`'' St are received by MDWASD Regional Pump Station #2. As of June 7, 2005, this pump station is operating under capacity as established by the USEPA, and is not under any type of moratorium (see Attachment "C" 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 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 deterrined and are shown in Table 5. The Boulevard Site Utility Study Table 5: Water & Sewer Flow Generation Apartment 127 units 200 gpd per unit Total Average;' Daily Flow (gpd) 25,400 Retail 12,970 sf 5 gpd per 100sf 649 Total Anticipated Flow 26,049 gpd Page 6 • • • TV. 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 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 by the project are shown in Table 6. The Boulevard Site Utility Study Table 6: Solid Waste Generation Type of Occupancy Apartment Phase l<:'. Quantity 127 units 5lbs/unit/day Total Solid Waste Generated (Tons/Day) 0.318 Retail 12,970 sf 6lbs/1000 sf/day 0.039 Total Anticipated Solid Waste Generated 0.357 Page 7 • • • The Boulevard Site Utility Study Attachment A Preliminary Drainage Well Calculations Page 8 THE BOULEVARD City of Miami, Florida 411PRAINAGE CALCULATIONS: DRAINAGE WELLS (MASS DIAGRAM - DERM CRITERIA) • • 1. Site Data: A. Average October Water Table Elevation = B. County Flood Criteria Elevation = C. F.I.R.M. or 1i'BMA Base Flood Elevation = D. Average Crown Road Elevation = E. Average Existing Onsite Grade Elevation = F. Proposed drainage inlet grate elevation = 2. Total Contributing Drainage Area (A): 2.2,5:;'.: NGVD 5.00 NGVD (County Flood Criteria Map, see Appendix A) Zone X (Map No. 120250: 83J see Appendix A) 12.67 NGVD 12.20 NGVD 12.00 NGVD A. Impervious Areas: a) Asphalt and concrete pavement b) Roof areas + 1/3 NE building corner = Total Impervious Area (Al) = 1.44 Acres .3 Acres .06 Acres 1.29 Acres (89%) B. Pervious areas: a) Green Areas = 0.15 Acres (11%) 3. Weighted Runoff Coefficient (C): Runoff Coefficient Impervious (C1) = 0.90 Runoff Coefficient Pervious (C2) = 0 30 C = [(Al x C1) + (A2 x C2)] / A; C= 0.84 C x A = Total Contributing Area; C x A = 1.21 Acres 4. Time required to generate one inch of runoff (per DERM Water Control Section D-4) Rainfall Intensity (I) = 308.5 / [(48.6 x F-°.11) + t (0.5895 + F-2/3)] Frequency (F) = 5 years - Frequency Curve Q = CIA, V = Qt; V( V(1 in.) = CIAt(1 q.) 1"xA=CIAt(1in) = Qt(1 in.), t(1 in,) = Time to generate I inch of runoff Solving for t(1 in.), t(1 in.) = 1" / (IC) Time to Generate one inch of run-off t(in) Time to reach the inlet (tc.) Total Time required to generate 1 in of runoff: = 12.09 Min. = 10.00 ; Min. = 22.09 Min. DRAINAGE WENS -THE BLVD.xIs BASIN • • • 5. Cumulative Runoff (Inflow Mass Diagra Time CxA (acres) 1 (inches) Q (CFS) Accumulated Storm Runoff (CF) (Min.) (Sec.) 8 480 1.207 6.405 7.73 3,710 10 600 1.207 6.166 7.44 4,465 15 900 1.207 5.641 6.81 6,128 22.09 1325 1.207 5.034 6.08 8,050 30 1800 1.207 4.493 5.42 9,761 40 2400 1.207 3.956 4.78 11,460 50 3000 1.207 3.534 4.27 12,796 60 3600 1.207 3.193 3.85 13,875 90 5400 1.207 2.477 2.99 16,143 120 7200 1.207 2.023 2.44 17,579 180 10800 1.207 1.480 1.79 19,297 6. Drainage Well Design Discharge Rate: Based on well discharge rate of 500 GPM/ft. IIead DW-1 Lowest nlet Rini Elev. (NGVD) 12.00 Oct,Water Table elev. (NGVD) 2.25 Headloss due to Higher SG of Salt Water (ft.) 2.20 Head Acting on Well (ft.);, 7.55 Well Discharge Rate (CFS) 8.41 Well:Structure Dimensions. idth (ft-) Length th Well Structure Storage Volume (CF) 241.6 DW-2 12.00 2.25 2.20 7.55 8.41 241.6 Well Discharge Rate (CFS) 7. Detention Time: 16.82 1 Total Storage (CF) The drainage well structure must be designed to detain runoff for a minimum of 90 seconds prior to discharge. Qd = Design Runoff Rate (CFS) = Vd = Detention Volume (CF) = Qd x 90 sec. = Vdt = Detention Volume Per Well (CF) = W = Width of Well Structure (ft.) = L = Length of Well Structure (ft.) = 6.08 CFS 546.77 CF 273.38 CF 4.0 ft. 8.0 ft. 483.20 is the minimum depth required from the top of well casing to the floor of the well box to achieve 90 second detention time: Hmx,, (ft-) = Val 1 (W x L) = 8.60 ft. Top of Well Casing Elev. µ 10.00 Elevation at Floor of Well Box (NOVD) = Top of Well Casing Elev. - I , . - 1.40 • • • 8. Excess storm water runoff excluding well structure storage: Time Well Discharge Rate (CFS) Accumulated Well Discharge Volume (CF) :: Accumulated Storm Runoff. (CF) Total Overflow Volume .. . (CF) (Min.) (Sec.). 8 480 16.82 8.075 3,710 -4,364 10 600 16.82 10,094 4.465 -5,628 15 900 16.82 15,140 6,128 -9,013 22.09 1,325.12 16.82 22,292 8,050 -14,242 30 1800 16.82 30,281 9,761 -20,520 40 2400 16.82 40,374 11,460 -28,914 50 3000 16.82 50,468 12,796 -37,672 60 3600 16.82 60,561 13,875 -46,687 90 5400 16.82 90,842 16.143 -74,699 120 7200 16.82 121,123 17,579 -103,544 180 10800 16.82 181,684 19,297 -162,388 9. Excess storm water runoff including well structure storage: (Min.); 8 10 15 22.09 30 40 50 60 90 120 180 (Sec.) 480 600 900 1,325.12 1800 2400 3000 3600 5400 7200 10800 Accumulated Storm Runoff (CF) 3,710 4,465 6,128 8,050 9,761 11,460 12,796 13,875 16,143 17,579 19,297 Storage in' Well Structure (CF) 483 483 483 483 483 483 483 483 483 483 483 Accumulated ) Well Discharge. Volume (CF) 8,075 10,094 15,140 22,292 30.281 40,374 50,468 60,561 90,842 121,123 181,684 Total Overflow Volume.. (CF) ... -4,847.65 -6,111.47 -9,496.05 -14,724.93 -21,002.84 - 29,397.50 -38,154.75 -47,169.71 - 75,182.62 - 104,026.70 -162,870.84 Safety Factor 2.77% Safety Factor 2.95% • Attachment B Existing L tility Records • • • • • design ticket 04941040.txt From: irth_host@callsunshine.com Sent: Wednesday, February 18, 2004 9:26 AM To: Fernandez, Jorge Subject: SSOCOF CONFRM 2004/02/18 #00001 04941040-000 NORM DSGN NEW CONFRM 00001 CALL SUNSHINE 02/18/04 09:25:38ET 04941040-000 DESIGN STREET Ticket : 04941040 Rev:000 Taken: 02/18/04 09:17ET State: FL Cnty: DADE Place: MIAMI Subdivision: Address : 238 to 274 Street : NE 34TH ST Cross 1 : NE 2ND AVE Within 1/4 mile: Y Locat: UTILITIES WITHIN BOUNDARIES BISCAYNE BLVD, NE 2ND AVE, NE 33RD ST & NE 34TH ST Remarks : In response to receipt of a design ticket, SSOCOF provides the originator of the design ticket with a list of SSOCOF members in the vicinity of the design project. SSOCOF does not notify SSOCOF members of the receipt by SSOCOF of a design ticket. It is the sole responsibility of the design engineer to contact SSOCOF members to request information about the location of SSOCOF members" underground facilities. Submission of a design ticket will not satisfy the requirement of Chapter 556, Florida Statutes, to notify SSOCOF of an intent to excavate or demolish. That intent must be made known specifically to SSOCOF in the manner required by law. In an effort to save time on future calls, save your design ticket number if you intend to begin excavation within 90 days of your design request. The design ticket can be referenced , and the information on it can be used to save time when you call in the excavation request. *** GEOCODED PLACE IS MIAMI *** *** LOOKUP BY ADDRESS *** Grids : 2548C8011C 2548B8011C 2548C8011B 2548B8011B Work date: 02/18/04 Time: 09:19ET Hrs note: 000 Category: 6 Duration: UNKNOWN Due Date : 02/20/04 Time: 23:59ET Work type: DESIGN Ug/Oh/Both: U Machinery: N Depth: UNK Permits: N N/A Done for : DESIGN Company : KIMLEY HORN AND ASSOCIATES Type: CONT Co addr : 420 LINCOLN RD Co addr2: SUITE 353 City : MIAMI BEACH State: FL Zip: 33139 Caller : JORGE FERNANDEZ Phone: 305-673-2025 Ext: 237 Contact : SAME Phone: 305-673-2025 Ext: 237 BestTime: 8-5 Mobile : 305-582-0628 Fax : 305-673-4882 Finai1 : JORGE.FERNANDEZ@KIMLEY-HORN.COM Submitted: 02/18/04 09:17ET Oper: KIM Chan: 40 Mbrs : ATTF01 NANCY SPENCE 770-918-5424 AT&T COMM - NORTH 2315 SALEM ROAD CONYERS, GA 30013 Level 1: NO Level 2: NO Level 3: YES FEES WILL VARY Page I FAX 770-785-3125 • • • design ticket 04941040.txt Level 4: NO CC1282 THOMAS CARROLL COMCAST CABLE 2601 SW 145 AVE MIRAMAR, FL 33027 Level 1: Level 2: Level 3: Level 4: DCPWT DWIGHT CARROLL/LEA PUBLIC WORKS - MDC 7100 NW 36TH ST MIAMI, FL 33166 Level 1: Level 2: Level 3: Level 4: FPLDAD TRACY STERN** FLORIDA POWER & LIGHT 4200 W FLAGLER ST (SDD/LFO) MIAMI, FL 33134 Level 1: NO CHARGE Level 2: SERVICES NOT PROVIDED Level 3: SERVICES NOT PROVIDED Level 4: SERVICES NOT PROVIDED FPLDBR TRACY STERN** FLORIDA POWER & LIGHT 4200 W FLAGLER ST (SDD/LFO) MIAMI, FL 33134 Level 1: NO CHARGE Level 2: SERVICES NOT PROVIDED Level 3: SERVICES NOT PROVIDED Level 4: SERVICES NOT PROVIDED FPLFOD SHELDON JORDAN* FPL FIBERNET 9250 W FLAGLER ST MIAMI, FL 33174 Level 1: NO CHARGE Level 2: SERVICES NOT PROVIDED Level 3: SERVICES NOT PROVIDED Level 4: SERVICES NOT PROVIDED HTE907 L3C900 NETWORK RELOCATIONS DEPT. 954-538-9310 305-592-3470 305-442-5966 FAX 954-538-9423 FAX 305-477-6422 FAX 305-442-5975 BY MEMBER BY MEMBER BY MEMBER 305-442-5966 FAX 305-442-5975 BY MEMBER BY MEMBER BY MEMBER 305-552-4751 FAX 305-552-2411 BY BY BY MEMBER MEMBER MEMBER 877-366-8344 LEVEL 3 COMMUNICATIONS LLC FAX 720-888-5223 1025 ELDORADO BLVD, BLDG 13C04 BLDG 13C04 BROOMFIELD, CO 80021 Level 1: Level 2: Level 3: Level 4: LS1104 MCIU01 INVESTIGATIONS 972-729-6016 MCI FAX 972-656-6022 2400 N. GLENVILLE RICHARDSON, TX 75082 Level 1: $0 Level 2: SERVICES NOT PROVIDED BY MEMBER Level 3: SERVICES NOT PROVIDED BY MEMBER Level 4: SERVICES NOT PROVIDED BY MEMBER MDWS RAFAEL BALLESTEROS 305-669-7658 MIAMI DADE WATER SEWER FAX 305-669-7769 3575 S LEJEUNE RD Page 2 • • • design ticket 04941040.txt MIAMI, FL 33146 Level 1: Level 2: Level 3: Level 4: PGSNIA ANGEL L QUANT / LETHIA JAME 305-573-3820 PEOPLES GAS - FT LAUD FAX 305-576-5307 60 NW 17 ST MIAMI, FL 33101 Level 1: Level 2: Level 3: Level 4: QST885 FIBER PROTECTION CENTER 800-283-4237 QWEST COMMUNICATIONS FAX 303-992-1729 555 17 ST DENVER, CO 80202 Level 1: Level 2: Level 3: Level 4: SBF23 STEVEN B. MASSIE 305-222-8745 BELLSOUTH FAX 305-221-7652 9101 SW 24 STREET MIAMI, FL 33165 Level 1: FEE TO BE DETERMINE➢ Level 2: NOT PROVIDED BY MEMBER Level 3: FEE TO BE DETERMINED Level 4: NOT PROVIDED BY MEMBER TC1143 VIRGILIO ALVAREZ 305-914-9414 TCG SOUTH FLORIDA FAX 305-914-9424 995 NE 124TH ST NORTH MIAMI, FL 33161 Level 1: Level 2: Level 3: Level 4: USC964 JEFF YOUNT 310-385-3828 GLOBAL CROSSING TELECOMMUNICATIONS, INC FAX 310-409-7518 360 N. CRESENT DR BEVERLY HILLS, CA 90210 Level 1: Level 2: Level 3: Level 4: USSP01 SPRINT LONG DIST. ENGINEER 407-932-1560 SPRINT 10 EAST DRURY KISSIMMEE, FL 34744 Level 1: NO FEE HOWEVER WE WILL OFFER THIS Level 2: NO Level 3: NO Level 4: NO Page 3 • • _ OWN 653 z 2 2007 1 R31 # CE az / / 222{ �s - \- 11 • j \ l « 0.1 76A 275 • 5e,wer et5 273 �` 7, E3ZAA\ 243 2836 2645 1 227 f441 2 NE 29 1851 xaa '22B 24 NE S3 5T 251' : 252, Li 1622 6371 19 598 7 /NE 30 TER 52"233 232 12' 281 4 955.. 257 255 • • Attachment C Pump Station Monthly Information • • Pub Station Monthly Information tation..30 -0002 Atlas Pg.,E13 IAMB DADE WATER & SEWER DEPARTMENT ddr..925 BISCAYNE BLVD e ownship--Range 31-53-42 e- ET clock.Y Te1m,Y #Pumps, 5 amp Type.A Stn Class.M Speed.R Hrspwr.+ Res flow(gpd) Pans.. 2,071,718 Plats.. 0 Extens. 0 Proj Napot % Cap 4.29 hrs 42.90 2.85 hrs 28.50 2.85 hrs 28.50 <Plan. Review> Moratorium..OK Moratorium effective since / / Date Mo,NAPOT Avg Daily Flows Rgd Fig 4/28/2005 1.49 5.95 0.00 Y 3/01/2005 2.92 11.67 0.00 Y 1/28/2005 2.77 11.07 0,00 Y 2/28/2004 2.80 11.21 0.06 'Y .1/23/2004 3.09 12.34 0.00 Y .0/25/2004 3.28 13.10 0.00 Y 9/24/2004 3.14 12.56 0.00 Y Signature , . LEALG t LD/M Station I<m>provement G©LD/B <S>tation Inform. GOLD/II <'U>pstream Station x4LD/D <D>own.stream Station GOLD/P <P>ump Information >OflLD/T Sewer Cer<t>ification Yearly NAP©T (hrs).. Stn Gross Capacity(gpd) Station Reduction Factor Stn Net Cap Certif(gpd)., Stn Net Capacity(gpd)..•- Indicated Flows(gpd) 2.85 57,600,000 0.60 0 34, 560, 000 4,104,000 Comments • Pmp 5 5 5 5 _ 5 5 5 Sign. Date .. 03/17/2003 3 : 52 : 24. 01 7 ON INVL0.:QQL OC •L �!L • o • Attachment D Maps W 44TH ST� 42ND ST <L Cam] NE 43RD ST ELI NE 42ND ST 0 NW 38TH S NW 35TH ST NW 34TH TE W 34TH ST NW 33RD S NW 32ND ST NW 31ST ST NW 30TH ST i 1\ �\ NE 41ST ST wt 43RD ST 42ND NE 40TH ST NE 39TH ST NE 38H ST 1 SADAL PALM RD NE 39TH ST 1 Si NE 37TH S <\ C 195 10111111110 PROJECT STILAN 0 (f) 0 z N= 29TH S 0 NE • 35TH ST 3 NE 32ND ST NE 31 ST ST NE 30TH TE NE 30TH ST NE 29TH NE 29TH ST NE 28TH ST NE 28TH ST NE 27TH TE NE 26TH TE NE 26TH SST Kimley-Horn and Associates, Inc. 1691 Michigan Ave Suite 400 Miami Beach, Florida 33139 Phone: 305-673-2025 Fax: 305-673-4882 NE 26TH ST THE BOULEVARD LOCATION MAP BROWAR0 7J / COUNTY GfS f4sr 0 • { 2 NOTES 1 CONTOUR INTERVAL 1.0 FOOT {Except as indicated} 2. DATUM LS MEAN SEA 1..EVEL.. J< • 1.4 1.E`.1END --2 (EST€MATED} �-❑ Kimsey -Horn and Associates, Inc. 1691 Michigan Ave Suite 400 Miami Beach, Florida 33139 Phone: 305-673-2025 Fax; 305-673-4882 THE BOULEVARD AVERAGE OCTOBER GROUND WATER LEVEL 196045 111° Kimley-Horn and Associates, Inc. THE BOULEVARD FLOOD CRITERIA MAP 1691 Michigan Ave Suite 400 Miami Beach, Florida 33139 Phone: 305-673-2025 Fax 305-673-4882 ❑=o Kimsey -Horn and Associates, Inc. THE BOULEVARD FIRM FLOOD INSURANCE RATE MAP. 12025C0183 J 1691 Michigan Ave Suite 400 Mimi Beach, Florida 33139 Phone: 305-673-2025 Fax: 305— 6 73— 4882