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Argus Surveying of Benson Beach

Argus Surveying of Benson Beach. Sponsored by: USACE Portland District. N. Dry-Beach Acreage. 630m. Submerged sandbars. 500m. 200m. (bold lines mark March shorelines). Oct 2006. 23 Sept 2010. (2.0m NAVD88 shorelines through Sept). Man-made salient Aug-Sep 2010.

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Argus Surveying of Benson Beach

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  1. Argus Surveying of Benson Beach Sponsored by: USACE Portland District

  2. N Dry-Beach Acreage 630m Submerged sandbars 500m 200m

  3. (bold lines mark March shorelines) Oct 2006 23 Sept 2010

  4. (2.0m NAVD88 shorelines through Sept)

  5. Man-made salient Aug-Sep 2010 Post 2005/2006 extreme storms natural recovery

  6. Total Dry-Beach Acreage (m**2) 12.3acres Extreme 05-06 Winter

  7. Total Dry-Beach Acreage (m**2)

  8. 2.0m NAVD88 5/16/2010 Middle& Outer Bars

  9. 8/21/2010

  10. 8/27/2010

  11. 9/10/2010

  12. 9/22/2010

  13. 9/22/2010

  14. 9/22/2010

  15. 9/22/2010

  16. Man-made salient Aug-Sep 2010 Post 2005/2006 extreme storms natural recovery

  17. Bar Systems following the Fall 2006 and 2010 Salients

  18. Oct 2010 and Dec 2008 have the most similar 3-bar systems

  19. Total Dry-Beach Acreage (m**2) (“similar” to Fall 2010) 12.3acres

  20. Argus at North Head Lighthouse would not have been possible without funding from USACE and the joint cooperation of Washington State Parks, Coast Guard, and USACE

  21. NorthWest Research Associates (NWRA)Redmond, WA NWRA is a scientific research group, owned and operated by its Principal Investigators, with expertise in the geophysical and related sciences.

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