Bathymetry%20of%20Lake%20Travis

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Bathymetry of Lake Travis

• Christina Stanard
• GIS in Water Resources
• Fall 2006

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Background
Image courtesy of LCRA
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Mansfield Dam
Lake Travis
Elevation when full 681 ft. Dam Spillway
Elevation 714 ft. Current Elevation 644.11
ft.
From Lower Colorado River Authority www.lcra.org
Lake Austin
Image courtesy of Google Earth
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Purpose

• Develop a depth chart of Lake Travis according to
  the current water level
• Include boat launches and attractions
• Find the difference in surface area from the
  change in elevation

Boaters in Devils Cove on Lake Travis (Image
courtesy of www.nnin.net)
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Making the Chart

• Bathymetric data for the lake, converted to depth

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Making the Chart

• Adjusted the depth for the current elevation of
  644.1 ft.

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Chart of Lake Travis and its Attractions
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Zooming in
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Lake Austin and Mansfield Dam
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Changing Shoreline
Future Work

• The surface area of the lake when it is full is
  18,929 acres (78 km2)
• Interested in finding the area when the lake is
  at the current elevation...

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Improvements

• More elevation data points for the Lake
• This data is only 2 points/acre
• Elevations for boat access to attractions

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Questions?