HomeMy WebLinkAboutIII. Tab 3. Sity Utility Studyson, P.Slidt..
Fritz. P.S.M.
Pere E. Calvet, P.S.M.
ti
xornin M. lba,luaeea, P.S.M.
ichael J. Alley, P_3,M.
ose L. San5ei, P.S.M_
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LAND SURVEYORS - ENGINEERS -LAND PLANNERS
3240 CORPORATE WAY - IRAMAR, -FLORIDA 33025
BROWAR PHONE: 054)435-7030
DADE PHONE_ r305) 562-7010
OOROWARD FAX: )954) 458-3288 < D.ADE FAX t305) 65 -5284
` .SFVSK N.COM
City Of Miami Courthouse
Center Garage
Major Use Special Permit
Site Utility Study
-10 1 ora '.E.#58710
Prre9 t Manager (EB#87)
A8fons C. relic, P.E.. P.SW.
Hernando J. Navas, P.E.
Luis F_ Leon, P.E.
Alhero A. Mora. P.E.
DADE OFFICE - 11941 S.W. 144TH STREI T. MtAMt, FL 33136 e PHONE: (305) 23-�°210
.Ati 15441`;City of Mliiuui Courthouse Parking Garage DOC iJM ENTS\CALCLLATit)N'S`vSite Utility Study_01.doe
Alberto A.Fidtml Page t 6: 19'200
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City of Miami Courthouse Center Garage
Site Utility Study
Introduction
The City of Miami Courthouse Center Garage is a proposed structure composed of
314,089 s.f of parking garage, 40,878 s.f. of office space and 4,043 s.f. of retail space.
This site is situated along NW 3r i Street between North Miami Avenue and NW 1st
Avenue in the City of Miami, Florida. A portion of the office space of this building will
serve as the main operations office for the Municipal Parking Authority.
I. Drainage
Existing .Drainage: The existing site is composed of a parking garage structure of
approximately 0.95 acres, an asphalt parking lot and a piece of vacant land where
there once lied retail building which has since been demolished. The drainage system
serving this parcel is composed of a series of drainage inlets and exfiltration trenches.
The inlet rim elevations range from approximately 11.6' NGVD to approximately
12.6' NGVD. The perimeter grade varies from 10.9' NGVD to 13.1' NGVD. This
site has very little above ground storage which gives the site the potential of
overflowing into the adjacent right-of-way during above average storm events.
Proposed Drainage: The proposed site is planned to be drained by the use of a
network of inlets and pipes conveying the run-off and directing it into two drainage
wells. This drainage system will be sized to dispose the 5-Year storm event as
required by Miami -Dade County DERM.
II. Water Distribution
Existing Water Mains: Miami -Dade Water & Sewer Department (M-DWASD)
owns and operates the following water mains in the vicinity of the project. (See
attached Water Atlas)
LOCATION
BETWEEN
DESCRIPTION
NW 2nd Street
NW lst Ave and N. Miami Ave.
12" Water Main
North Miami Ave.
NW 2ti1 St. and NW 3r`i St.
12" Water Main
NW 3r`i Street
NW 1st Ave and N. Miami Ave.
12" Water line
NW 1st Ave.
N W 2" i St. and NW 3rd St.
12" Water Line
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City of Miami Courthouse Center Garage
Site Utility Study
Proposed Water Mains: Based on the above, we anticipate that no off -site
improvements will be required by Miami -Dade WASD since the existing mains
comply with the ininirnum requirements implied by zoning and the fire department.
Water Demand: The proposed development is expected to generate an average dai
water demand of 4,29.1 gallons per day (g.p.d.) based on Miami -Dade Water &
Sewer Department tables for this type of development (4,043 s.f. of retail space X
5 g.p.d./100 s.f = 203 g.p.d.) + (40,878 s.f of office space X 10 g.p.d.C100 sat:
4,088 g.p.d)
IIL Sanitary Sewer Collection System
Existing Sanitary Sewer Mains: Miami -Dade Water & Sewer Department (M-
DWASD) owns and operates the following sanitary sewer mains in the vicinity of the
project. (See attached Water Atlas)
LOCATION
BETWEEN i
DESCRIPTION
NW 2nd Street
NW lst Ave and N. Miami
Ave.
10" Sanitary Gravity
Main
North Miami Ave.
NW 2nd St. and NW 3r St,
20" Sanitary Gravity
Main
NW 3rd Street
NW lst Ave and N. iMiarni
Ave.
12" Sanitary Gravity
Main
Proposed Sanitary Sewer Mains: Based on the above, we do not anticipate the
construction of any off -site mains. We plan to provide the structure with 2 sewer
connections to facilitate the distribution of the interior plumbing. One of the
connections will be to the existing 10" gravity line along NW 2t d Street with a new
private service. The other connection will be to the existing 12" sewer main on NW
3rd Street with a new private service. Please be advised that although the existing
mains abutting this site seem to be adequate Miarni-Dade Water & Sewer Department
will model the loads generated by this development to ensure that there is enough
capacity in the existing mains to serve this project.
Sanitary Sewer Load: Please refer to the Water Demand Section for the calculations
of the expected sanitary sewer loads. The sanitary sewer loads are as follows:
Total Site will generate 4,291 g.p.d
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City of Miami Courthouse Center Garage
Site Utility Study
IV. Solid Waste Generation
The solid waste that will be generated by this development was calculated to be
(250 employees .X 1.1 Kg/employee/day = 275 Kg./day) 607 lbs./dayr.
The solid waste that will be generated by this project will be collected in standard
on -site duanpster which will be rolled out from the structure for pick up. 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 fuel gas at the referenced p.roject, however, there is
an existing 8" gas main along NW 2nd Street. (Information obtained from the City
of Miami Underground Public Records)
VI. Electrical
Contact has been made with Florida Power and Light, and their representative has
informed us that 480/277 Volt, three phase service is available. The project will be
served from an FPL vault inside the building. (Information provided by TLC
Engineering for Architecture)
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City- of Miami Courthouse Center Garage
Site Utility Study
Appendix I
K:t015441\City of Miami Courthouse Parking GaaagelllOCUMENTS`,,CALCC LATiONS\Site Utility Study-41.cioc
Alberto A. Mora Page 5 6/i92007
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