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Updated 09/26/06 SCOPE OF WORK FOR THE DEVELOPMENT OF A LONG RANGE DREDGED MATERIAL MANAGEMENT PLAN
TASK I . IDENTIFICATION OF PROJECTED DREDGING REQUIREMENTS AND AVAILABLE DISPOSAL RESOURCESA. Data Collection - Solicit historical data, base map and aerial photo materials, demographic information, easement and title documentation, and any other information pertinent to the project from the following agencies: · F.I.N.D.· Jacksonville District Corps of Engineers· DEP - Local and Tallahassee· Department of State, Division of Archives, History and Records Management· Florida Wildlife Conservation Commission· National Marine Fisheries Service· U.S. Fish and Wildlife Service· Local City and County Governmental AgenciesB. Public Information Workshops - Project information will be periodically provided to the general public and local governments through a series of workshops as generally outlined in Attachment A-2. C. Establish Long -Term Requirements 1. Material Characteristics - From existing data, and channel sediment samples taken within each dredging reach, develop a characteristics profile of material to be dredged (e.g., grain size, specific gravity, chemistry, etc.) 2. Quantities - From existing data estimate long term (50 yr.) volume estimates for material to be dredged (undisturbed volumes). For each estimate include location of dredging, material characteristics, bulking factor, and expected dredging frequency. 3. Inventory of Existing Sites - From existing data establish data files of existing sites including size, location, remaining capacity, use restrictions, upland access, pipeline access, wetland acreage, upland acreage and onsite dike material. 4. Estimate Disposal Capacity Deficits for Long -Term Requirements - Based on information obtained from 1 - 3 above estimate the additional disposal capacity required to meet long term needs. If possible, identify component shortfalls by appropriate dredging reach of waterway. These estimates should account for all known activities which could influence the quantities involved. TASK II. IDENTIFY DISPOSAL OPTIONS A. Selection of Material Management Concept - From all information obtained evaluate material management concepts available to F.I.N.D. Select the concept or combination of concepts which is considered to be the most feasible and is compatible with the disposal resources identified. As a minimum, the following concepts should be considered. · Distributed disposal (historical)· Centralized containment - self contained· Centralized disposal - intermediate holding· Ocean disposal· Overdepth Dredging· Other Beneficial UsesB. Material Management Concept Detail - For any material management concept other than centralized upland containment, prepare a discussion of anticipated procedures, costs, permitting, etc., for this concept. Also, indicate how two or more material management concepts will interface into a comprehensive material management plan including potential beneficial uses of the dredged material. C. Centralized Containment Site Identification - Through the use of all available photographic maps, identify candidate containment sites within the study area which are not presently available to F.I.N.D and that generally meet the site evaluation criteria found in Attachment A-1, Categories I through III D . * * * PROJECT ADVISORY COMMITTEE MEETING * * * Presentation to F.I.N.D. Board D. Establish Site Bank - From all of the sites identified, eliminate those which are obviously not compatible with the selected material management concept. Sites remaining will constitute those disposal resources which satisfy the basic material management concept and which appear to best fit the site evaluation criteria Categories I through Ill D. TASK III. SITE FIELD INSPECTION A. For each site placed in the site bank perform an on-ground field inspection to qualitatively confirm site characteristics, vegetation patterns, soil conditions, wetlands jurisdictional limits, and general suitability for dredged material containment. * * *PROJECT ADVISORY COMMITTEE MEETING * * * Presentation to F.I.N.D. Board TASK IV. SITE EVALUATION A. Site Evaluation - The standard set of site evaluation criteria, as set forth in Attachment A-l, Categories I through III, will be used as a basis for the evaluation of individual sites within the site bank relative to one another. Sites found to be unacceptable will be removed from the site bank. B. Narrative - In support of the evaluation, an accompanying narrative will be developed for each site in the site bank. The narrative will provide a written description of the site and will document the basis for selection or non-selection of the site. * * * PROJECT ADVISORY COMMITTEE MEETING* * * Presentation to F.I.N.D. Board TASK V. PRIMARY AND SECONDARY SITE SELECTION A. Based upon the results of Task IV. primary and secondary dredge material site(s) will be selected for each dredging reach of the study area. These sites will be the sites in each dredging reach which best fit the Site Evaluation Criteria. * * * PROJECT ADVISORY COMMITTEE MEETING* * * Presentation to F.I.N.D. Board TASK VI. BASE MAP PREPARATION A. Map Materials - Aerial photo negatives will be made available by F.I.N.D., or the contractor may select other aerial photographs as may be available to him. These will be used to produce photo-base maps on erasable mylar with a scale between 1" - 400' and 1" - 300' for the entire waterway within the study area. B. Map Annotation - Once prepared the photo-base maps will be marked to show the following: · Centerline of ICW channel including designated cut areas.· Location, boundaries, and sizes of all disposal sites in the site bank.· Alpha-numeric index assigned to each site.· Locations, quantities and characteristics of material required to be dredged.· Historical Dredging events with quantities and locations.· Channel mile markers.· Dredging reach parameters.· Any other pertinent information.TASK VII. PHASE II - RECOMMENDED SCOPE OF WORK A. Based upon the results of the Phase I Study, develop a recommended scope of work for Phase II of this study area. TASK VIII. DOCUMENT PREPARATION A. Draft Submittal - Draft versions of all project work products will be submitted to F.I.N.D. for review and comment. These will include the following: 1. Technical Report - Detailed description of the work performed and the methods used, complete set of narratives for each site in the site bank, recommendations for Phase II of the project. 2. Base Map - One complete set of photobase mylar maps, scale between 1" - 400' and 1" - 300'. Maps will show those items noted in Section IV. B of the Scope of Work. 3. Computer Disks - All information contained in the technical report and on the base maps will be backed up on floppy disks and provided to F.I.N.D. * * * PROJECT ADVISORY COMMITTEE MEETING* * * Presentation to F.I.N.D. Board B. Final Submittal - Following receipt of F.I.N.D. comments on the draft submittal, all documents will be finalized and submitted. Presentation to F.I.N.D. Board |
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