Wenger 72944 Especificações descarregar pdf (Página 14)

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Executive Summary

FIGURE 2: EAA RESERVOIR LAYOUT

Reservoir Design

The total storage surface area of the reservoir is approximately 31,000 acres

with a maximum normal pool depth of 12 feet deep, and provides 360,000 acre-

feet of storage volume. Earthen embankments surrounding the reservoir will

have a minimum height of 23 feet above ground. The internal embankment

separating the two cells is 21 feet above ground.

Seepage Buffer

The 200 foot wide seepage buffer runs along the east, north, and western

boundaries of the reservoir. This seepage buffer will extend 200 feet from the

base of the embankment. In addition to providing its intended seepage

management function, it will also provide wildlife habitat within the project

footprint, encompassing a total of 560 acres. The design of the buffer is to mimic

an upland-wetland mosaic and allow for maintenance of the reservoir

embankment. The first 50 feet of the buffer from the toe of the embankment will

be an upland maintenance corridor. From 50 to 100 feet, the buffer area would

be re-graded to pre-construction elevations and allowed to re-vegetate naturally

as a wetland. From 100 to 200 feet, the buffer area would contain a deeper (-2

EAA Storage Reservoirs Revised Draft PIR and EIS February 2006

ES-vi

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