2007 Annual Monitoring Report (pdf 16MB) - Bolsa Chica Lowlands ...

Bolsa Chica Lowlands Restoration Monitoring2007 Annual ReportShorezone Volume Change Relative to 1963 Survey (3) (m 3 /m)SurveyTransect DesignationDate 249+30 311+22 318+30 333+30 350+71 378+29 423+89May 1963 0 (1) 0 (1) 0 (1) 0 (1) 0 (1) 0 (1) 0 (1)Jul 1964 265 (1) 49 (1) 273 (1) 271 (1) - - -Oct 1966 72 (1) -107 (1) 113 (1) 180 (1) 56 (1) 172 (1) -24 (1)Apr 1969 90 (1) -172 (1) 18 (1) 123 (1) 339 (1) 190 (1) -230 (1)May 1973 423 (1) 157 (1) 255 (1) 221 (1) 55 (1) 78 (1) -287 (1)Dec 1978 497 (1) 511 (1) - - 197 (1) 83 (1) -164 (1)Jun 1979 510 (1) 196 (1) - - 123 (1) 117 (1) -213 (1)Apr 1982 412 (1) -166 (1) -18 (1) -2 (1) -112 (1) 31 (1) -123 (1)Jan 1983 516 (1) 130 (1) 339 (1) 346 (1) 164 (1) 71 (1) -5 (1)Feb 1992 484 -263 - - 40 -293 -133May 1992 484 -204 - - -8 -207 -80Nov 1992 477 -172 - - 98 -100 -91May 1993 527 113 - - 157 -133 -6Oct 1993 496 138 - - 182 207 49Apr 1994 551 145 - - 247 93 124Oct 1994 499 -168 - - 225 124 151May 1995 538 74 - - 185 -65 111Nov 1997 536 (2) 292 (2) - - 283 (2) -42 (2) 225 (2)Mar 2002 474 79 241 (1) 296 (1) 132 -53 361Oct 2005 - - - - - - -Mar 2006 - - - - - - -Jan 2007 506 813 1165 678 214 78 549May 2007 480 712 1223 809 242 85 506Oct 2007 493 771 1189 727 189 129 532Notes:(1) Beach profile data generated from TIN model(2) Beach profile data interpolated at 15.24 m (50.0 ft) intervals(3)Shorezone volume boundary extends from the back beach to the statisticalrange of closure. Shorezone volume basement elevation located at -13.83 mNAVD88 (-45.0 ft, MLLW, 1960-1978 tidal datum epoch)Merkel & Associates, Inc.