Bogue Banks Beach - Carteret County Shore Protection Office
Bogue Banks Beach - Carteret County Shore Protection Office
Bogue Banks Beach - Carteret County Shore Protection Office
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Final Report <strong>Bogue</strong> <strong>Banks</strong> <strong>Beach</strong> & Nearshore Mapping Program<br />
Periodic Survey Evaluation<br />
Erosion<br />
Accretion<br />
Volume Change (cy/ft)<br />
60<br />
40<br />
20<br />
0<br />
-20<br />
-40<br />
-60<br />
Emerald Isle Unit Volume Change<br />
West East<br />
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48<br />
Transect Number<br />
Volume Change Above MHW Volume Change Above -5 ft Volume Change Above -12 ft<br />
Volume Change Above -20 ft Volume Change Above -30 ft<br />
Figure 10. Emerald Isle Unit Volume Change (2010 - 2011)<br />
5.4.2. Indian <strong>Beach</strong>/Salter Path<br />
The Indian <strong>Beach</strong> region covers Transects 49 through 58. Since monitoring efforts began in<br />
1999, this region has received 1.36 million cy of nourishment material from the <strong>Bogue</strong> <strong>Banks</strong><br />
<strong>Beach</strong> Restoration Project, USACE Section 933, and FEMA post-storm work (Ophelia). A<br />
summary of average shoreline and volume changes between 2010 and 2011 for the Indian<br />
<strong>Beach</strong>/Salter Path region are presented in Table 16.<br />
Table 16. Average <strong>Shore</strong>line and Volume Change for Indian <strong>Beach</strong>/Salter Path<br />
Reach<br />
Length<br />
Emerald Isle<br />
West<br />
avg<br />
shoreline<br />
change @<br />
MHW<br />
avg volume<br />
change<br />
above +1.1<br />
ft NAVD<br />
cumulative<br />
volume<br />
change<br />
above +1.1<br />
ft NAVD<br />
avg volume<br />
change<br />
above -5 ft<br />
NAVD<br />
cumulative<br />
volume<br />
change<br />
above -5 ft<br />
Emerald Isle<br />
Central<br />
Emerald Isle<br />
East<br />
<strong>Shore</strong>line change in the Indian <strong>Beach</strong>/Salter Path area showed a significant accretion of<br />
approximately 14 ft between the last two surveys. Profile plots in Appendix C show continued<br />
accretion of the beachface as was the case with Emerald Isle. Volumetrically, Table 16 indicates<br />
that the Indian <strong>Beach</strong>/Salter Path area gained approximately 55,000 cy of material above -12 ft<br />
NAVD88. Figure 11 displays the unit volume change at each transect for the Indian<br />
<strong>Beach</strong>/Salter path region. As can be seen, there are localized areas of volume gains and losses<br />
throughout the region.<br />
November 2011 24<br />
NAVD<br />
avg volume<br />
change<br />
above -12 ft<br />
NAVD<br />
cumulative<br />
volume<br />
change<br />
above -12 ft<br />
NAVD<br />
avg volume<br />
change<br />
above -20 ft<br />
NAVD<br />
cumulative<br />
volume<br />
change<br />
above -20 ft<br />
NAVD<br />
avg volume<br />
change<br />
above -30 ft<br />
NAVD<br />
cumulative<br />
volume<br />
change<br />
above -30 ft<br />
NAVD<br />
Reach (Profiles) ft ft cy/ft cy cy/ft cy cy/ft cy cy/ft cy cy/ft cy<br />
Indian <strong>Beach</strong>-Salter Path (49-58) 12,850 14.2 3.9 50,509 4.3 55,361 4.3 55,234 -1.7 -21,734 6.8 87,177
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