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Section 6 The Selected Alternative Plan

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

6-23

6.4.3.2 Mechanical Design

Pump Station General Information and Size Criteria

The new pumping stations of the Project shall be categorized as medium-sized.

For the purpose of this study, a pump station is considered medium-sized if it

has least one pump with a capacity greater than 75 cfs, and no pumps with a

capacity greater than 450 cfs. By contrast, existing pump stations G-370 and G-

372 are categorized as large pumping stations because the largest pumps in each

station have 925 cfs capacity.

The pump stations shall be designed in accordance with Hydraulic Institute

Standards, EM 1110-2-3102 (General Principles of Pumping Station Design and

Layout), EM 1110-2-3105 (Mechanical and Electrical Design of Pumping

Stations). The pumping stations will also follow the guidance of ETL 1110-2-313

(Hydraulic Design Guidance for Rectangular Sumps of Small Pumping Stations

with Vertical Pumps and Ponded Approaches). The use of formed suction

intakes and siphon discharges for the larger pumps at these stations shall be

evaluated during preparation of the plans and specifications for each specific

pumping station, and shall be based upon the channel intake design, the

required pumping heads, and life cycle cost analysis.

It is assumed that mixed flow or vertical axial flow pumps will be used for all

pumping stations. All of the pumps will be water-lubricated. The medium-sized

pumping stations will be designed with vertical, axial flow pumps with either a

horizontal or siphon type discharge. Pumping station criteria and information is

located in Appendix A on Table A-33, EAA Pumping Station Information.

6.4.3.2.1 Medium-Sized Pumping Stations

Pumping stations categorized as medium-sized pumping stations are S-610 and

S-611. S-610 is located along the North New River Canal and has a capacity of

2505 cfs, and S-611 is located along the Miami Canal and has a capacity of 800

cfs.

6.4.3.2.2 Pumps: Pumping Capacity, Pump Sizes, and General Information

The medium-sized pumping stations will have four and nine pumping systems.

The pumps in each of the stations will be axial-flow-type vertical-shaft pumps.

Power to the pumps will be provided by either diesel engines through right angle

reduction gear drives or by direct-drive electric motors. Appendix A, Table A-33

lists the number of pumps, the capacities of the pumps, the drives, etc., for each

of the pumping stations in the EAA.

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Wenger 72944 Spezifikationen Seite 251