HomeMy WebLinkAboutSite Utility Study•
CAPIRO TOWER
S.W. 12 AVE. & S.W. 31u) STREET
MIAMI, FLORIDA
SITE UTILITY STUDY
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PREPARED BY:
ZAMORA Sr ASSOCIATES, INC .
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1. SITE DESCRIPTION:
The is located at the southwest corner of S.W. 12th Avenue and S.W. 3rd
Street in the City of Miami. The site also has frontage on S.W. 4th
Street. The physical address is 300 S.W. 12th Avenue.
LEGAL DESCRITION:
Lots 1,2,3,4,5,6 and lots 15,16,27,18,19,20, Block 90 of "Lawrence
Estates Subdivision" according to the plat thereof es recorded in Plat
Book 2 at Page 46 of the Public Records of the City of Miami, Miami -
Dade County, Florida
The site will be developed as a 328 unit apartment building and will
have a commercial component of 10,000 square feet to be used for retail
purposes.
The total net area is 86,577 square feet or 1.99 acres.
Total Landscape areas will consist of 6,900 square feet. The remaining
square footage of the site will consist of either building or paved
areas.
2. DRAINAGE:
Once the project has been fully developed the site will consist of 92 %
impervious areas and 8 o pervious areas. This site will have a
stormwater runoff from the building roof, paved surface areas, deck
areas and landscape areas.
The weighted runoff coefficient using the Rational Method is as
follows;
Cw;
Description Area C (A) (C)
Pervious 0.16 0.4 0.06
Impervious 1.83 0.9 1.65
Total 1.99 1.71
Cw = 1.71 / 1.99 = 0.86
The site will be developed with several catch basins (inlets) through
out to collect the stormwater. The rainfall runoff will be directed
towards these proposed catch basins by sloping the paved areas towards
these catch basins. Furthermore, the roof runoff will be collected and
piped to the catch basins thru storm drainage pipes.
Once the sto.cwwater has been collected at the catch basins, they will
be directed via storm pipes to the proposed drainage wells. These
drainage wells will then dispose of the stormwater into the underlying
soil strata. The proposed wells will consist of 24" diameter wells with
their corresponding collection boxes.
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new twelve(12) inch water main.
hydrants (if required) will also
improvement.
The anticipated water demand based
follows;
This stormwater drainage system will be designed as per the City of
Miami Public Works Department and the Department of Environmental
Resources Management (DERM) standard policies for stormwater retention.
The calculations will be based on a 5 year 1-day storm event. Please
note that proposed stormwater drainage system will comply with the
requirement of providing pollution retardant baffles.
The following is the preliminary drainage calculations for this project
using the 5 year storm event.
Total Net Area: 86,577 square feet or 1.99 acres
Weighted Runoff Coefficient: 0.86
Intensity of Rainfall: 6.7 inches per hour
Runoff Q = c i a = (0.86) (6.7) (1.99)
11.47 cfs = 5,146 gallons per minute
Based on the standard usage of 1 well per acre, this site will provide
a minimum of 2 wells.
Please note that once construction documents are prepared the number of
wells may increase to three if the existing and proposed site
elevations dictate it.
3. WATER DISTRIBUTION:
Miami -Dade Water & Sewer Department (M-DWASD) records show that the
site currently has an existing eight (8) inch water main along the
property frontage on S.W. 3rd Street and also along S.W. 12`h Avenue.
Along S.W. 4ch Street there currently only exist a two (2) inch water
main. Please note that along S.W. 12rh Avenue north of S.W. 3rd Street
the water main increases to a twelve (12) inch main.
Based on the current standards from the Miami -Dade Water & Sewer
Department, a water main improvement would most likely be required. The
current standards require that a high rise development as well as
commercial developments must have a twelve (12) inch water main
abutting all public frontage. The actual requirements will be
determined upon receiving a water & sewer availability letter from the
department.
The proposed building water and fire services will be
Please note that additional fire
be connected to this water main
connected to the
on current M-DWASD standards is as
Apartments: 200 gallons per day per apartment (gpd)
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Retail Commercial space: 5 gallons per day (gpd) per 100 square feet
(sq. ft.)
Therefore the total water usage demand for this project is as follows;
Apartments 328 units @ 200 gpd = 65,600 gpd
Commercial 10,000 sq. ft. @ 5gpd / 100 sq. ft. = 500 gpd
TOTAL: 66,100 gpd
4. SANITARY SEWER DISTRIBUTION:
The site currently has an eight (8) inch sanitary sewer for a portion
of the frontage of S.W. 12th Avenue as well as a portion fronting S.W.
31-6 and 4th Street. This site will connect to one of these existing sewer
mains. Please note that since this project generates greater than
10,000 gallons per day, Miami -Dade Water & Sewer will have to determine
if any improvements will have to be performed on their system due to
the increase of sewage flow from this project.
The anticipated sewer demand based on current M-DWASD standards is as
follows;
Apartments: 200 gallons per day per apartment (gpd)
Retail Commercial space: 5 gallons per day (gpd) per 100 square feet
(sq. ft.)
Therefore the total sewer usage demand for this project is as follows;
Apartments 328 units @ 200 gpd = 65,600 gpd
Commercial 10,000 sq. ft. @ 5gpd / 100 sq. ft. = 500 gpd
TOTAL: 66,100 gpd
Using a peak factor of 2.5 this site will generate a total sewage
demand of 165,250 gallons per day.
5. SOLID WASTE GENERATION:
Solid Waste generated from this proposed project will be collected in
trash dumpster containers for both refuse and recycling. Regular
service will be provided thru a private hauling company or thru the
City of Miami Solid Waste Department.
The total daily volumes from this site for solid waste disposal is as
follows;
r
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RESIDENTIAL APARTMENTS:
Rate 1.5 tons per year per apartment
328 apartments x 1.5 tons/year = 492 tons per year
= 1.35 tons per day
= 2,700 lbs per day
COMMERCIAL DEVELOPMENT:
Rate 3.5 tons per year per square feet
10,000 square feet x 3.5 tons/year = 35,000 tons per year
= 95.9 tons per day
= 191,781 lbs per day
TOTAL WASTE GENERATED = 35,492 tons per year
= 97.25 tons per day
= 194,481 lbs per day