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1 .0 INTRODUCTION Site IR- 14 (Figure 1 . 1 ) , one of three sites in Indian River County, Florida , selected for development as dredged material management facilities, will provide long-term capacity for the management of sediments dredged from adjacent segments of the Intracoastal Waterway (ICWW) . The site-specific management plan for the IR- 14 dredged material management facility, outlined in this report, provides guidance for the development and operation of the material management area so that it efficiently processes , temporarily stores, and ultimately transfers material dredged during scheduled channel maintenance operations . To that end , this plan document addresses those facets of site design and operation which directly influence site efficiency or reduce off- site conflicts . These include elements of site preparation and facility construction , techniques ofdecantingand dewateringthe dredged material during and immediately following maintenance operations, and guidelines for post- dredging site operation and maintenance . Throughout, the goal of each phase of site management is to ensure that the site not only achieves its minimum 50-year design service life, but that it also fulfills its potential as a permanent operating facility for the intermediate storage, processing, and transfer of maintenance material dredged from the ICWW . Site IR- 14 was selected as the primary site to serve that portion of the ICWW in Indian River County defined in Taylor et al . ( 1997) as Reach III (Figure 1 .2 ) . Reach III extends from a point near Vero Beach ' s northern boundary , opposite the community of Gifford ( Cut IR-24 , station 28+00, ICWW mile 210 . 19) southward 8 . 27 miles to the Indian River/St , Lucie County line (Cut IR-35 , station 31 + 50, ICWW mile 218 .46) . A comprehensive evaluation of Jacksonville District Corps of Engineers ' archival records confirmed that this segment of the Waterway has not been dredged since its 1959 deepening to the present - 12-11 MLW project depth . Nevertheless, the most recent examination survey ( 1996 ) documented a total in situ reach shoal volume of 57 ,498 cubic yards (cy) within the authorized channel . The projected 50-year storage requirement for Reach III ---- 162 ,658 cy — represents extrapolation of the documented in situ shoaling volume multiplied by a bulking plus over-dredging factor of 2 . 15 . Thus, the IR- 14 containment basin must provide a capacity of about 163 , 000 cy .