Keywords
Jackson, Lake (Leon County, Fla. : Lake), Lake restoration, Lakes -- Florida, Sediment desiccation testing, Drawdown and excavation method, Dredging cost–benefit analysis, Eutrophication from urban watershed development, Geotechnical sediment classification
Abstract
Megginnis Arm of Lake Jackson in Tallahassee, Florida, has experienced rapid eutrophication as a result of development within the contributing area watershed. Bottom sediments were sampled for purposes of mapping, classifying and designating for removal. Sediment desiccation studies were performed to determine the percent of consolidation and sealing characteristics of the soils in the event of a lake drawdown. Restoration alternatives are presented and compared on the basis of field investigations, laboratory testing and analysis, and the desiccation study. Alternative methods are discussed with respect to the cost, the flexibility and the problems inherent in the different proposals. From the geometry of Megginnis Arm, and construction permit limitations, this study was limited to methods of restoration which include dredging, drawdown and excavation, drawdown and compaction, and drawdown with dredging. By comparing the costs, the practicality, and geotechnical investigation and the flexibility of alternative methods, it is concluded that the drawdown and excavation method is the alternative. The dredging and drawdown and dredging alternatives were determined to be uneconomical and risky. These methods are not recommended.
Notes
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Graduation Date
1984
Semester
Summer
Advisor
Kuo, Shiou-San
Degree
Master of Science (M.S.)
College
College of Engineering
Degree Program
Engineering
Format
Pages
137 pages
Language
English
Rights
Public Domain
Length of Campus-only Access
None
Access Status
Masters Thesis (Open Access)
Identifier
DP0015865
Subjects
Lake sediments--Research; Sediments (Geology)--Evaluation; Reservoir drawdown--Environmental aspects; Dredging--Cost effectiveness; Lake restoration--Environmental aspects
STARS Citation
Johnson, Richard L., "Geotechnical Investigation of In-Lake Sediment Treatment for Megginnis Arm of Lake Jackson, Tallahassee, Florida" (1984). Retrospective Theses and Dissertations. 4685.
https://stars.library.ucf.edu/rtd/4685
Contributor (Linked data)
University of Central Florida. College of Engineering [VIAF]
Accessibility Status
Searchable text