HomeMy WebLinkAboutSite Utility Study•
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Niaior Use Spec:Jai .--ernilt
Site U.' 'tv Stud.v
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Ken W. Ciroce, P.E. 435944
Vice President
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oduction
Bricked Flatiron is a proposed l . l 1 acre residential / commercial development that will
be constructed along South Miami. Avenue between SE. 0" and SW 12 Streets within
the limits ot the City of Miami, Florida. Brickell Flatiron will consists of 554
condominium units, 254,043 square feet of office space, 30,316 square feet of retail
space. 16,913 square lbot of restaurant space (equates to 169 seats) and a parking garage.
The proposed site will combine two tracts of land located on the north and south sides of
5h: 1 1 " Street. The south tract is vacant and the north tract contains a small office
building and parking lot that will be demolished to make room for the proposed
development. In addition to the structures to be demolished a portion of SE 1 1"' Street
between South Ivtiami Avenue and Brickell Plaza (SE I .Ave) will be vacated (see
attached reduced tentative plat in the appendix)_
Drainage
Existing Drainage: The existing site is surrounded by paved roads that are
maintained by the City of Miami Public Works Department_ The existing drainage
system consists of inlets and exfiltration trenches. The rim elevations of the existing
inlets vary depending on their location along the existing roads. The elevations along
the perimeter of the property as shown on the tentative plat vary between +5.60 and
-9.00 and relate to the City of Miami Datum. The existing development has a
drainage system that collects stormwater generated on -site and discharges it into the
ground through exflitration trenches.
Proposed Drainage: The proposed site is planned to be drained by the use of both
exfiltration trenches and drainage wells. This drainage system will be sized to dispose
the 5-year storm event as required by Miami -Dade County's Department of
Environmental R.esource Management (DERM). We anticipate the use of 24"
diameter drainage wens and exfiltration trenches to dispose of the stormwater
generated on -site. The on -site stoirl.wwater will be prevented from flowing onto public
roads by the placement ofa perimeter bean.
II. Water Distribution
Existing Water Mains: The Miami -Dade Water & Sewer Department (WASD)
owns and operates the following water mains in the vicinity, of the project (see
attached WASD Water Atlas in the appendix).
Pagc
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II. Water Distribution Cont'd
LOCATION
Brickell Plaza (SE,
Ave)
South Miami Avenue
SE 10th Street
SE 11 `h Street
SW ? Street
BETWEEN
SE 10' St and SW 12 Sat
SE 1 Oct St and SW 121°
S. Miami Ave & Brickell Piaza
S. Miami Ave & Brickell Plaza
S. Miami Ave & Brickell Plaza
DESCRIPTION
12" Water Main
6", & 16" Water Mains
6" Water Main
No Water Mains
12" & 16 Water Mains
Proposed Water Mains: Based on the table of existing water mains, we anticipate
that a new 12'' water main may be required by WASD_ This proposed main will run
along the south side of SE 10tt" Street and connect to the existing 12" water main
located at the intersection of SF: 10th Street and Brickell Plaza and to the existing 16"
water main located at the intersection of SE 10th Street and South Miami Ave. The
proposed development will connect the proposed 8" domestic and 6" tire mains to the
existing 12" water main located in Brickell Plaza.
Water Demand: The proposed project is expected to generate an average daily gate
demand of 145,278gallons per day (GPD) per WASD's standard flows for
residential and commercial developments. The flow calculations are as follows:
554 condominium units `c 200 GDP/Unit = 1 10,800 GPD
254,043 square feet of office space U 10 GPD!100 SF = 24,505 GPD
30,316 square feet of retail space (cr 5 GPD/100 SF = 1,516 GPD
16,913 square foot restaurant (1 seat/100 SF u2° 50 GPD!`seat) = 8,457 GPD
II, Sanitary Sewer Collection System
Existing Sanitary Sewer Mains: The Miami -Dade Water & Sewer Department
(WASD) owns and operates the following sanitary sewer mains in the vicinity of the
project (See attached WASD Sewer Atlas in the appendix)
LOCATION i BETWEEN DESCRIPTION
Brickell Plaza (SE is, SE 10th St and SW 12th St No Sewer Mains
Ave)
South Miami Avenue SE 10th St and SW 12St 8" Gravity Main
SE 1 O'h Street
SE 11 III
Street
SW 12th Street
S. Miami Ave & Brickell Plaza 8" Gravity Main & 24
Gravity Interceptor
S. Miami Ave & Brickell Plaza No Sewer Mains
S. Miami Ave & Brickell Plaza No Sewer Mains
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111. Sanitary Sewer Collection System Cant'd
Proposed Sanitary Sewer Mains: Based on the table of existing sewer mains, we do
not anticipate the construction of any off -site mains. The proposed development will
connect to the existing 8" gravity line located in South Miami Avenue with a 6"
service line. Please note that the building's sewer service lines exiting the building
will require that they be no larger than 6" due the fact that WASD does not permit an
8" service connection to an 8" gravity main.
The site can also connect to the existing gravity sewer manhole located at the
intersection of SW 11 t" Street and South Miami Avenue with an 8" service line. As
of the date (9/30/05) of this study the downstream pump station has sufficient
capacity to serve this site. A sewer allocation issued by DERM will be required to
allow the construction of this project.
Sanitary Sewer Load: The proposed project is expected to generate an average
daily sewer load of 145,278 gallons per date (GPD) per WASD's standard flows
for residential and commercial developments. The flow calculations are as follows:
554 condominium units i? 200 GDP t. nit =i l0.800 GPD
254,043 square feet of office space ci 10 GPD' 100 SF = 24.505 GPD
30,316 square feet of retail space u 5 GPD/ 100 SF = 1,516 GPD
16.913 square foot restaurant (1 seati 100 SF 50 GPD/seat) = 8,457 GPD
IV. Solid Waste Generation
The solid waste that will be generated by this development was calculated as
follows:
1. office/retail: 12,300 lbs/day (4 lbs per 100 SF per day)
2. condominium: 8,300 lbsiday (6 lbs per day per capita)
The solid waste that will be generated by this project will be collected in standard
on -site containers. Pick-up service will be provided by either a private garbage
collection company or by the City of Miami Solid Waste Department.
V. Gas
We do not anticipate a need for natural gas at the referenced project. The gas
service if required will be provided by TECO Peoples Gas. There is a 2" gas main
located in SE 10`h Street, SW Street_ S Miami Avenue and Brickell Plaza (SE
1s' Ave).
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VI, Electrical
Florida Power & Light has existing facilities to the site which overhead. The
available service is 120/208 Volt, 3 Phase. 240/480 Volt 3 Phase is also available
should the development require it. The project will be served from pole mounted
transfoianers or an FPL vault located on the ground floor of the proposed building.
Page 5 5130,2006
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Brkkeii Flatiron
Site Uti
Appendix I
C'',Doc'unInts and Sewngs'.groce.cen's Foiders'AlSWOR )0C,M1SCH ,ANOUS1, ;TR,Fry sTUDYBncken Flatiron u tWv
Study 2 doe
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S.W. CORNER
-SECTION 38-54 -41
W. 10th AVENUE
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AOCA,270
PORTION OF SECTION 39, TOWNSHIP 54 S., RANGE 41 14„
SCALE .1 " 300
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