A Brief History of Headland Breakwaters for Shore Protection ... - fsbpa

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AnnualSignificantWindsAnnualSignificantFetchFarshoreFetchWindowsStormFetchStormWinds90°90°TangentialBeachControl Line (R )OWave Crest LineOrthogonalR90°R/R =0.81OAnnualResultant WaveVectors H& at SiteL BSMB Output (H&T)RCP WAVE InputStormRCPWAVEBathymetricGridWave OrthogonalDiffractionPointPossible HeadlandAlignmentSpiralBeachSectionPossible Extentof HeadlandBWSpiral SectionTangentB mG BM bTangent SectionSpiralBWL =BW LengthBG B=Bay GapM =IndentationbB =Beach WidthmAverage Mb:Gb = 1:1.65Project UplandStatic Equilibrium Bay: Hsu et al 1989
Elevation (feet)Elev ation (feet)3020BmPresent beach widthbase bank to MHWSpartina patensTomboloSpartinaalternifloraBreakwaterA10Beach NourishmentBerm0Bottom3020BmPresent beach widthbase bank to MHWSpartina patensMbMaximum bay indentationcenterline breakwater to MHWB100Beach NourishmentBermBottomBreakwater componentsHardaway and Byrne, 1999
Page 1 and 2: Brief History ofHeadlandBreakwaters
Page 3: Early on• 1979: Hardaway attends
Page 6 and 7: Summerille/StaplesMarch 8, 1988 Apr
Page 8 and 9: Offsets and differential erosion of
Page 10 and 11: Drummond -Installed November 1985Ae
Page 12: Drummond Field under construction:
Page 15 and 16: Drummond Field: April 7, 2010
Page 18 and 19: Aqua-Po: October 2009
Page 20 and 21: Claiborne Landing: 2010
Page 22 and 23: Elm’s Beach: September 2000Instal
Page 24 and 25: Elms Beach: October 20, 2009
Page 26 and 27: Carden: January 2006Installed Decem
Page 28 and 29: The 1990s• Yorktown: First three
Page 31 and 32: Yorktown: 2010
Page 33 and 34: Asbury: March 2007
Page 35: Asbury: 2008
Page 38 and 39: Kingsmill, pre-construction: 1996
Page 40: James River SitesWest Bank/Boykin:
Page 43 and 44: VanDyke: 2007
Page 45: Luter: January 2010
Page 49 and 50: Bidirectional Wind/Wave SettingSite
Page 51 and 52: The New Millenia• Pax River NAS-
Page 53 and 54: Pax River, NAS: January 11, 2003
Page 55 and 56: Fuel Pier
Page 57 and 58: Fort Boykin with West Bank seen in
Page 59 and 60: Pax River Gate 4: 2007
Page 61 and 62: Lately• Davis - 2005: located nea
Page 63 and 64: Davis: 2010
Page 65 and 66: Clarke: 2008, under construction
Page 67 and 68: Clarke :2010
Page 69: Headland Breakwater Systems in Ches
Page 72 and 73: VIMS West: 2010
Page 74: Questions?For Mr. HardawayYorktown,

A Brief History of Headland Breakwaters for Shore Protection ... - fsbpa

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