EVEREST June, 2013 - California Department of Boating and ...

More documents

Recommendations

Info

Orange County Coastal Regional Sediment Management Plan Sandy beach and subtidal soft-bottom are the primary habitats within one mile of the receiver site near Newport Beach Pier. Grunion has the potential to spawn at the beach between March and August depending on habitat suitability. The area is identified as potential overwintering habitat for snowy plover, which have been observed downcoast during 2004-2010 winter surveys at Balboa Beach (USFWS, 2007b and 2010). Designated critical habitat for snowy plover occurs at Balboa Beach (USFWS, 2011). Sandy beach and subtidal soft-bottom occur at receiver and sediment source locations within Newport Harbor and Upper Newport Bay. However, a primary habitat consideration for dredging and discharge of sediments at many of the sites within the bay is proximity to eelgrass. Eelgrass occurs within and along the shorelines of the entrance channel, Balboa Marina Channel, east Balboa Peninsula, east side of Bay Isle, along the perimeter of Balboa Island, Harbor Island, Collins Isle, Linda Isle, Balboa North Channel, Bayshores, and along the Corona Del Mar shoreline bend in lower Newport Bay (CRM, 2009). Eelgrass was not mapped in 2006- 2008 in the western part of the bay near Lido Isle, north within the Newport Dunes Aquatic Park, or in the vicinity of North Star Beach. At the time of this report, the Orange County Coastkeeper is conducting an an eelgrass restoration project at De Anza peninsula. Another sensitive resource consideration of Newport Harbor and Upper Newport Bay sites is proximity to least tern colonies during the breeding season, April to September. Least terns have the potential to forage in the vicinity of sediment sources and receiver sites; however, nesting islands in Upper Newport Bay are located more than two miles from most receiver and sediment sources. An exception includes North Star Beach, which is located within two miles, but more than 1.5 miles from nesting sites. The Upper Newport Beach sediment source location is close (
Orange County Coastal Regional Sediment Management Plan Dana Point to Capistrano Beach Sediment source and receiver sites occur within Dana Point Harbor (Figure 3.8). An offshore sediment source location has been identified less than one mile from the entrance to the harbor. Beach receiver sites occur at Baby Beach, Doheny State Beach and Capistrano State Beach. Nearshore placement also has been identified as an option at Capistrano County Beach (USACE, 2007b). Sandy beach and subtidal soft-bottom are the primary habitats at sediment source and receiver sites. Eelgrass occurs in proximity to Baby Beach within Dana Point Harbor; small-to-large patches of eelgrass were located 160 to 412 feet west of the existing bulkhead at the Youth Sailing Center during surveys conducted in 2008-2009 (CRM, 2008; MBC Applied Environmental Sciences, 2009b). The Dana Point Harbor jetties are a major roost site for brown pelicans (Strong and Jaques, 2003). Sandy beach habitat occurs at the Doheny State Beach receiver site. Grunion may spawn at the beach between March and August depending on habitat suitability. The area is identified as potential overwintering habitat for snowy plover; however, no snowy plovers were observed at this beach during winter surveys conducted between 2004 and 2010 (USFWS, 2007b and 2010). The Doheny State Beach receiver site is within the Doheny Beach SMCA (also refer to Section 3.6). Nearshore reefs occur downcoast of Dana Point Harbor. Historically canopy kelp was more abundant than mapped with recent surveys. Diver surveys indicate that surfgrass has localized occurrence on nearshore reefs between Dana Point Harbor and Capistrano County Beach (USACE, 2007b). A minor roost site for brown pelican occurs at Doheny State Beach. The Capistrano County Beach receiver site includes beach or nearshore discharge options (USACE, 2007b). The beach is relatively narrow and includes sandy to mixed sand-cobble habitat. The beach is not mapped as a grunion spawning area. The area is identified as potential overwintering habitat for snowy plover. The site was not included in the 2004-2010 winter surveys for snowy plover (USFWS, 2007b and 2010); however, snowy plover have been reported to forage at the beach (USACE, 2007b). The nearshore area is sandy offshore of the beach. The nearshore area between Dana Point and Capistrano County Beach includes mixed sand and hard-bottom habitat with understory algae and localized occurrence of surfgrass (USACE, 2007b). Historically, canopy kelp has occurred upcoast and downcoast of the site; the nearest kelp beds were more than one mile from the site in 2008 (Figure 3.8). San Clemente Sandy beach is the primary habitat at the San Clemente City Beach receiver site (Figure 3.9). The beach is mapped as grunion spawning habitat along most of the site, but not at the downcoast end where the beach substantially narrows. Grunion has the potential to spawn at the site between March and August depending on habitat suitability. Nearshore reefs occur Everest International Consultants, Inc. 3.41
Page 1 and 2:
Prepared for U.S. Army Corps of Eng
Page 3 and 4:
Orange County Coastal Regional Sedi
Page 5 and 6:
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
Page 13 and 14:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Page 49 and 50: Orange County Coastal Regional Sedi
Page 99: Orange County Coastal Regional Sedi
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
show all

EVEREST June, 2013 - California Department of Boating and ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?