EM 1110-2-1100 (Part II)
30 Apr 02
Figure II-6-48.
Weir jetty flow patterns
Qg = total volume of alongshore sediment transport to the inlet each year [L3]
Hi = average wave height for the ith day of the year [L]
n = total number of days during the year [T]
(4) Phase II: Channel sedimentation. The first portion of the channel sedimentation procedure is
5
d1
2
Transport ratio '
(II-6-35)
d2
where the transport ratio equals the ratio of the sediment transport potential in the dredged cut to the sediment
transport on the bar before dredging and
d1 = depth before dredging [L]
d2 = depth after dredging [L]
On a daily basis, the amount of material that would be retained in the ocean bar channel of the inlet is given
by:
2
5
Hi
d1
[L 3]
2
Daily shoal volume ' CQg
(II-6-36)
1&
d2
j Hi
n
2
i'1
Hydrodynamics of Tidal Inlets
II-6-57