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Investigate Reservoir SedimentInvestigate Reservoir Sedimentand Watershed Erosion Using GISand Watershed Erosion Using GIS
Tiao J. ChangTiao J. Chang and Travis D. Bayes and Travis D. Bayes
Department of Civil EngineeringDepartment of Civil EngineeringOhio University, Athens, Ohio, USAOhio University, Athens, Ohio, USA
Scott McKeeverScott McKeeverMuskingum Watershed Conservancy DistrictMuskingum Watershed Conservancy District
New Philadelphia, Ohio, USANew Philadelphia, Ohio, USA
Prepared for the Sixth Scientific AssemblyPrepared for the Sixth Scientific AssemblyInternational Association of Hydrological SciencesInternational Association of Hydrological Sciences
Maastricht, The NetherlandsMaastricht, The NetherlandsJuly 18-27, 2001July 18-27, 2001
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Charles Mill LakeCharles Mill Lake
Original Volume* = Original Volume* = 11,369 acre-ft11,369 acre-ft
Current Volume* = Current Volume* = 8,129 acre-ft8,129 acre-ft
Sediment Volume* = Sediment Volume* = 3,139 acre-ft3,139 acre-ft
28% Loss of Volume28% Loss of Volume Used by MWCD for Used by MWCD for
Public RecreationPublic Recreation Need for DredgingNeed for Dredging
Charles Mill LakeCharles Mill Lake
U.S. 30U.S. 30
Rt 603Rt 603
Black Fork of theBlack Fork of theMohican RiverMohican River
*Note: Data is as of 1993*Note: Data is as of 1993
Rt 430Rt 430
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Dredging of Charles Mill LakeDredging of Charles Mill Lake
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How It WorksHow It Works
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Dredging of Charles Mill Lake Dredging of Charles Mill Lake
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Dredging Outlet Dredging Outlet
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Screen for Wetland FormationScreen for Wetland Formation
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Wetland FormationWetland Formation
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Wetland View 1Wetland View 1
As a Wetland!As a Wetland!
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Wetland View 2Wetland View 2
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Bed Elevation: 1934 Bed Elevation: 1934
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Bed Elevation: 1988 Bed Elevation: 1988
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Sediment Depth: 1934-1998Sediment Depth: 1934-1998
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Collecting SamplesCollecting Samples
Used GPS and USGS Maps for back-upUsed GPS and USGS Maps for back-up 60 sediment sample sites were selected60 sediment sample sites were selected
1. Retrieving the Samples (4 days)1. Retrieving the Samples (4 days)
2. Bagging the Samples for Transport2. Bagging the Samples for Transport
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Recording AttributesRecording Attributes
- Recorded UTM coordinates, sample #, general - Recorded UTM coordinates, sample #, general grain size and color with Munsell Chartgrain size and color with Munsell Chart
- Ground sediment and sieve analysis- Ground sediment and sieve analysis(8 weeks)(8 weeks)
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Images of DepositsImages of Deposits
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D90 ImageD90 Image
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D10 ImageD10 Image
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Uniformity ImageUniformity Image Gravelly if Cu>4Gravelly if Cu>4
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Gradation Image Gradation Image