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LAND Doirete ion-
7RAFFIc AND TRANSPORTATION
CITY SQUARE
MULTI USE DEVELOPMENT
SITE UTILITY STUDY
January2006
8550 W. FLAGLER STREET, SUITE 113, MIAMI, FLORIDA 33144
TEL: (305) 551-6257 • FAX: (305) 551-4542
E-mail: vanevaneng.com
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LAND DEVELOPAENT
TRAFFIC AND TRAWSPORTMION
TABLE OF CONTENTS
1. General
2. Storm Drainage System
3. Water Distribution System
4. Sewer Collection System
5. Solid Waste Generation
Page
2
3
5
6
7
EXHIBITS:
"A" Location Map 10
"B" Storm Drainage Well Calculations 11
"C" MD-WASD Atlas (Sewer) 16
MD_WASD Atlas (Water) 17
Proposed Water Use Calculations 18
DERM Pump Station Monthly Report 19
"D" Solid Waste Generation Calculations 21
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1. General
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3055514542
CIVIL
LAND DEVELOP$ENT
TAFRC AND TRANSPORTATION
Surce 1989
CITY SQUARE- MULTI USE DEVELOPMENT
SITE UTILITY STUDY
A. Project Location and size:
The proposed project consists of a Multi -use Facility to be constructed of an
approximately 6.50 acre site in downtown Miami.
The project limits are:
to the east Herald Plaza (NE Bayshore Place)
to the NE 13th Street
to the west North Bayshore Drive
to the north NE 15th Street
The property being in Section 31, Township 53 South, Range 42 East Miami -
Dade County, Florida.
B. Existing Conditions:
This property in its existing conditions is being used as an existing 25,427
sf Commercial -Mixed Use Building. This building will be demolished to
allow for the construction of the new project.
C. The proposed project build -out will be as follows:
Condominium Apartments 985 Units
Retail 542,728 sf
Restaurants (25,000 sf) 750 seats
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2. Storm Drainage System
A. Existing Storm Drainage System:
3055514542 p. 5
CML
LAND DEVE1DPIENT
TRAFFIC AND TRANSPORTATION
Roadway storm drainage systems presently exist along the streets
surrounding the proposed project. These systems are owned and
maintained by the City of Miami. 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.
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) requirements. This will be accomplished by means of deep
drainage wells. No off- site run-off will be generated from this project.
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.
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TRAMM AND TRANB1 ORTAT N
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.
Based on the attached calculations, a total of 8 — 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 Well Disposal System calculations refer to attached Exhibit "S"
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3. Water Distribution System
A. Existing Water System Facilities:
3055514542
CML
LAND DEVEI.OPMENT
TRAFFIC AND TRANSPORIATOON
Miami -Dade Water & Sewer Department (MD-WASD) owns and operates
the following domestic water facilities in the vicinity of this project:
• An existing 12-inch water main on NE Bayshore Place (Herald Plaza)
that runs along the entire easterly boundary of the project.
• An existing 24-Inch water main on NE 15'h Street that runs along the
entire northerly boundary of the project.
• An existing 24-inch and an existing 6" water main on N. Bayshore
Drive that run along the entire westerly boundary of the project.
• An existing 6-inch and an existing 4" water main that runs within the
development's property that needs to be removed.
• An existing 36-inch transmission water main on NE 13th Street that
runs along the entire southerly boundary of the project_
These existing water mains can be used to provide fire protection
domestic and landscape irrigation service for this project.
B. Required Water System Improvements:
Based on the records provided by Miami -Dade Water and Sewer
Department (MD-WASD) the existing water mains appear to be adequate
to support the proposed development. MD-WASD Infill Committee will
make an evaluation of the system and may require additional system
improvements. 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
261,636 GPD is expected from this project. The previous flows are
approximately 2,543 GPD. The expected net increase is 259,094 GPD.
For determination of anticipated flows see Exhibit "C".
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3055514542
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LAND DEVF.OPIrENT
TRAFFIC AND TRANSPORTATION
4. Sewer Collectign System
A. Existing Sanitary Sewer System Facilities:
Miami -Dade Water & Sewer Department (MD-WASD) owns and operates
the following sanitary sewer facilities in the vicinity of this project:
• An existing 10-inch gravity sewer line along Herald Plaza that runs
along a portion of the Westerly boundary of the project. This line
connects to an existing 12-inch gravity line that runs west along NE
14'h Street.
• An existing 12-inch gravity sewer line along N. Bayshore Drive that
runs along a portion of the west side of the project.
• An existing 72-inch gravity sewer interceptor along N. Bayshore drive
that runs along the entire westerly portion of the property.
These existing sewer mains can be used to provide service for this
project. These lines collect all the sanitary flows from the general area and
direct them to MD-WASD Pump Station # 30-002.
B. Required Sanitary Sewer System requirements:
Based on the records provided by Miami -Dade Water and Sewer
Department (MD-WASD) the existing sewer mains appear to be adequate
to support the proposed development.
The Sanitary Sewer System in the vicinity of this project will have to be
evaluated by the MD-WASD to determine if additional improvements may
be required. That will be done at the time of permitting.
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LAND DEVELOPMENT
TRAFFIC AND TRANSPORTATION
C. Transmission Capacity Requirements
The Wastewater generated by this project will be conveyed to MD-WASD
Regional Pump Station No. 30-002. This is a major station with a yearly
NAPOT of 4.65 hours per day as of November 2005 according to DERM.
(See Exhibit "C').
Pump Station No_ 30-002 at this time has sufficient available capacity to
support this project.
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5, Solid Waste Generation
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CML
LAND DEVELOPMENT
TRAFFIC AND TRANSPORTATION
A. Solid Waste Generated by this project will be collected in standardized on -
site containers for refuse and re-cyciables. 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 78 CY per
day. (See Appendix "D").
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Jan 20 06 11:13a VSN ENGINEERING
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LAND DEVELOPOENT
TRAFFIC AND TRAMPORTATION
EXHIBIT "A"
LOCATION PLAN •
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LOCATION SKETCH
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PROJECT LOCATION
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LAND DVELOP ENT
TIC AND TRANSPORTATION
EXHIBIT "B"
Storm Drainage Calculations
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PROJECT NAME
DRAINAGE AREA: •
CM.
LAND DEVELOPMENT
'TRAFFIC AND TRANSPORTATION
CITY SQUARE 11712006
ENTIRE SITE Page 1
SITE DATA:
SITE AREA = 6.50 ACRES
BUILDING FOOT PRINT = 450 FT
BUILDING HIGHT = 400 FT
BUILDING WALL AREA = 4.13 ACRES
CONTRIBUTING BUILDING AREA= 1.24 ACRES
CONTRIBUTING AREA = 7.74 ACRES
NUMBER OF WELLS = 8
REQUIRED VOLUME FOR 90 SEC, DETENTION TIME (PER WELL):
CONTRIBUTING AREA PER WELL = 0.97 ACRES
RAINFALL INTENSITY (90 SEC) = 6,4 IN/HR
RUN OFF VOLUME (90 SEC) = 502 CF
DETENTION VOLUME PROVIDED:
TANK LENGTH = 16.00 FT
TANK WIDTH = 7.00 FT
TANK BOTTOM ELEV = -2.50 NOVO
TOP OF WELL CASING ELEV 2.50 NGVO
STORAGE DEPTH = 5.00 FT
DETENTION VOL PROVIDED = (per welt) 560 CF
TOTAL DETENTION VOLUME = 4,480 CF
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PROJECT NAME
DRAINAGE AREA:
Since 1989
3055514542 p,15
CIVIL
LAND OEVID4P11191T
TRAFFIC AND TRANSPORTATION
CITY SQUARE 1/7/2006
ENTIRE SITE Page 2
DRAINAGE WELL DATA:
WELL DIAMETER r
WELL DISCHARGE RATE PER FT OF HEAD
AVAILABLE HEAD =
DISCHARGE RATE PER WELL =
CUMULATIVE INFLOWIOUTFLOW DATA:
STORM FREQUENCY =
C FACTOR
DRAINAGE AREA =
it OF WELLS PROVIDED
TOTAL DISCHARGE RATE =
TOTAL DISCHARGE RATE =
SEDIMENT TANK STORAGE =
F.D. STORAGE _
SOLID PIPE STORAGE
INFLOW-EXFILTRATION TABLE
24 INCHES
759 GPM
3.00 FT
2,250 GPM
6 YEARS
0.95
7.74 ACRES
8
18,000 GPM
40.11 CFS
4,480 CF
0 CF
0 CF
I TIME
MIN
1NTEN.
IN/HR
CUM.INFLOW
CF
SYST. STO.
CF
ADJ. INFL.
CF
WELL D1SCH.
CF
OVERFLOW
CFS
8
6.41
22611
4480
18131
19251
-2.33
10
6.17
27214
4480
22734
24064
-2.22
15
5.64
37349
4480
32869
36096
-3.59
20
5.20
45896
4480
41416
48128
-5.59
30
4.50
59514
4460
55034
72193
-9.53
49
3.96
69883
4480
56403
98257
-12.86
6o
3.20
84626
4480
80146
144385
-17.54
90
2A8
98476
4480
93998
216578
-22.70
1ZU
2.03
107252
4480
102772
288770
-25.83
150
1.71
113312
4480
108832
360963
-28.01
180
1.48
117747
4480
11325T
433155
-29.62
13
500000
450000
400000
350000
300000
0
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200000
150000
100000
50000
0
0
CUMULATIVE INFLOW—EXFILTRATION
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WELL DISCHARGE
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CUMULATIVE IFIFLOW
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1.115MQJNEL INFLOW
20
40
60
80
100
TIME (MIN)
120
140
160
180
200
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LAND DEVELOPMENT
TRAFFIC AND TAANGPORTAT7ON
EXHIBIT "C"
MD-WASD Sewer Atlas
MD-WASD Water Atlas
Proposed Water Use Calculations
DERM Pump Station 30-002 Status
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PROJECT LOCATION
MD-WASD SEWER ATLAS
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PROJECT LOCATION
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MD-WASD WATER ATLAS
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3055514542
LAND DrvappwENT
TRAFFIC AND TF ANSPORTATIDN
PROPOSED WATER USE CALCULATIONS
PROJECT CITY SQUARE
DATE: 18-Jan-06
TYPE OF BUILDING USE _
AREA
[sf)
[units]
RATE
[gpdisfj
[gpdiuni]
ADF
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PROPOSED FLOWS:
Residential Condominiums
985
200
197,000
Retail
542,728
' 0,05
27,136
Restaurants (25,000 sf, 750 seats)
750
50.00
37,500
SUB -TOTAL
261.636
PREVIOUS FLOWS:
Commercial
25,427
0.10
2,543
SUB -TOTAL
2.543
NET INCREASE: 259,094
8550 W. FLAGLER STREET, SUITE 113, MIAMI, FLORIDA 33144
'TEL: (305) 5514267 • FAX (305) 551.4542
E-mail: vsn@vanene.com
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Jan 20 0S 11:16a VSN ENGINEERING
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p. 21
*2005110211183977*DRARMM * This is not an official docum
ent. *
M Stat Station Station Current Delta Projected
R Type Owner Number ET (Hrs) ET (Hrs) ET (Hrs)
Proposed Number of gallons (gpd): 109531
********* :t**•****************** Downstream Stations ********,*************art*****
ON. A5RM* 30 0002 4.65 0.08 4.73
AC 30 ' CD 1001.97 0.02 1001.99
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DIAL
LARD DEVELOPMENT
TRAFFIC AND TRANSPORTATION
EXHIBIT " D"
Solid Waste Generation Calculations
p. 22
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3055514542 p.23
MIL
LAND DEYE.PPAENT
TRAFRO AND TRANSPORTATION
PROPOSED SOLID WASTE CALCULATIONS
PROJECT CITY SQUARE
DATE: 19-Jan-06
TYPE OF BUILDING USE
AIREAIUNITS
[s#]
[seats]
RATE
jiblslj
[Ib/seatj
SOLID WASTE
GENERATED
[Ib]
SOLID WASTE
GENERATED
[tons]
PROPOSED BUILDING:
APARTMENT UNITS
985
8
7,880
3.94
RETAIL
542,728
0.025
13,568
6.78
RESTAURANTS
750
1.00
750
0.38
NET INCREASE:
22,198
. 11.10
ANTICIPATED SOLID WASTE VOLUME AT 7 CY PER Tc 78 CY I DAY
21
8550 W. FLAGLER STREET, MATE 113, MIAMI, FLORIDA 33144
TEL: (305) 551-6267• FAX: (305) 551-4542
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