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Bureau of Economic Geology The University of Texas at Austin

Bureau of Economic Geology The University of Texas at Austin. GEOTUBES ALONG THE UPPER COAST. James Gibeaut. Preliminary Observations. Coastal Coordination Council Executive Committee Special Meeting November 12, 2001. Long-term Average Annual Rate of Shoreline Change. Approx. 7 ft.

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Bureau of Economic Geology The University of Texas at Austin

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  1. Bureau of Economic GeologyThe University of Texas at Austin

  2. GEOTUBES ALONG THE UPPER COAST James Gibeaut Preliminary Observations Coastal Coordination Council Executive Committee Special Meeting November 12, 2001

  3. Long-term Average Annual Rate of Shoreline Change

  4. Approx. 7 ft Approx. 30 ft Geotube Schematic

  5. Installation Covered and vegetated Exposed Maintenance

  6. Treasure IslandJuly 19, 2001

  7. Rollover Pass Gilchrist East Gilchrist West Dellanera Pocket Park 2 Riviera San Luis Pass Pirates Beach Treasure Island, North, Middle, South Gilchrist East 6,200 feet Gilchrist West 14,400 Dellanera 1,590 Pocket Park 2 380 Riviera 590 Pirates Beach 8,540 Treasure Island 1,650 Geotube LocationsJuly 2001 Total = 6.32 miles

  8. LIDAR Topographic Images Gilchrist East Geotube Area 1997 Nov 1998 Pre- Frances 1998 Post- Frances 2000 May 2001 July 1,000 ft Gulf of Mexico Rollover Pass

  9. Pirates Beach on Galveston Island June 14, 2001

  10. Exposed GeotubesJune 13, 2001

  11. Beach ProfileGilchristWest (GLO-021) Height in meters geotube Distance in meters

  12. GLO-021 Profile Location Sept. 23, 1999

  13. June 13, 2001 July 18, 2001 GLO-21 Profile Location

  14. Website www.beg.utexas.edu/coastal/coastal01.htm

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