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( Section 2 . 3 .3 ) indicates the IR- 14 containment basin design provides sufficient retention time to allow precipitation of the finest sediments anticipated in Reach III without recourse to spur dikes . 2. 3. 5 Ramps An important goal of the Long- Range Dredged Material Management Program for Florida ' s ICWW is to manage each dredged material management site as a permanent operating facility . This goal carries two operational criteria. First, the material is to be actively worked to accelerate the drying process and thus render the material suitable for removal and reuse as quickly as possible . Second , to restore the basin ' s capacity and thereby extend its service life, material must be removed from the basin at or before the point at which the basin reaches its design capacity. As a result, ramps to provide heavy equipment access to the containment basin interior have been integrated into the design of the containment dike (Figures 2 . 1 and 2 . 5 ) . Thus , the site is designed to function more as a material processing and rehandling station than as a permanent storage facility . Although the design capacity of the IR- 14 containment basin ( 178 , 051 cy, Section 2 . 1 . 2) is adequate to receive the projected 50-year material storage requirement for Reach III , removing the dewatered material off site can effectively expand its capacity. In this manner, the useful service life of the site may extend indefinitely . In addition to providing for material removal , the ramps also allow easy entry for equipment used in the dewatering process . This latter process is discussed in Section 4 . 1 . The ramps will be positioned on the western and southern sides of the containment dike . An on-site access road will connect the ramps to Indian River Boulevard ( Figure 2 . 1 ) . Obliquely traversing the containment dike, the ramps will maintain the same 1 V : 3H side slope as the dike. The road surface of the ramps will be 12 ft wide with an ascending/descending grade of 5 % . 2. 3. 6 Perimeter Ditch Saltwater seepage from the interior of the containment basin into the on- site shallow aquifer is not expected to be a significant problem for several reasons . First, saltwater pumped from the ICWW (Indian River) will remain ponded within the containment basin only during actual dredging operations and for a short period immediately following dredging as the clarified effluent is released back to the ICWW . Such periods are expected to last approximately 8 to 12 weeks, once every 5 to 10 years . Second , during the site ' s 21