apalachicola river research information exchange - fws.gov hoehn... · apalachicola river research...
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Apalachicola River Research Information Exchange History of Activities on the Apalachicola River
Ted Hoehn
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First major survey in 1828
The river was navigable year round at 6.5' depths from Apalachicola Bay to the town of Aspalaga and 75% of the year, for boats with a 3.5' depth, to confluence of Chattahoochee and above to Columbus.
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Civil War – Time of Major Channel Change
1863
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Chipola River - Then
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Chipola River - Now
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“Modern” Historical Dredging
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Historical Dredging 1900- 1940’s: Most work done at the “new
channel” at Moccasin/River Styx and Cutoff/Lee Slough/Lower Chipola and Blountstown
1948: Revised Modern Navigation Channel approved
1956: Cut-offs on Apalachicola River conducted
1958: rock shoals opened in upper river, more removed in 1963, 1968
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Historical Dredging 1969 - 1970: Phase I-III of Navigation
Channel completed 1979: first COE dredging permit issued by
Florida with conditions 1986: Navigation Maintenance Plan
completed 1999: DEP permit required monitoring for T&E
mussels, many DA’s not allowed 2005: Florida denial of COE permit
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Pre- NMP
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Habitat Mapping
GFC (FWC) conducted bank habitat mapping for the entire River in 1984 COE, as part of permit condition,
remapped river in 2002 and digitized GFC 1984 effort USGS digitized banklines as part of
Apalachicola project
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