Representative Average Annual
Direction of Representative Average Net
Entrance Dredging, m3/yr
Longshore Sediment Transport, degrees
Direction of Representative Average Net
Representative Minimum Annual
Entrance Dredging, m3/yr
Longshore Sediment Transport, N, S, E,
W
Representative Maximum Annual
Entrance Dredging m3/yr
Representative Minimum Net Longshore
Sediment Transport, m3/yr
Maintained Channel Depth Over Bar
Representative Maximum Net
MLLW, m
Longshore Sediment Transport, m3/yr
Maintained Channel Width Over Bar
Representative Average Gross
MLLW, m
Longshore Sediment Transport, m3/yr
Average Dredging Depth Over Bar, m
Representative Minimum Gross
Maintained Channel Depth Between
Longshore Sediment Transport, m3/yr
Jetties MLLW, m
Representative Maximum Gross
Maintained Channel Width Between
Longshore Sediment Transport, m3/yr
Jetties MLLW, m
Representative Wave Height, m
Advance Dredging Depth Between
Representative Wave Period, s
Jetties, m
Median Grain Size, mm
Orthogonal of Shoreline, N, S, E, W, NA
Recent Minimum Channel Cross
Comments
Sectional Area Below MSL, m2
Table 2. Selected parameter extremes of inlets within the Federal Inlets Database (preliminary)
Parameter
Higher Value / Inlet Name
Lower Value / Inlet Name
Minimum Width, m
9,600 m / Willapa Bay, WA
190 m / Chincoteague Inlet, VA
5x106 m3/yr / Columbia River,
1.07x104 m3/yr / Frankfort
Representative Average Net
Longshore Sediment Transport, m3/yr
OR/WA
Harbor (Lake Michigan), MI
1.51x107 m3/yr / Columbia
1.60x105 m3/yr / St. Lucie Inlet,
Representative Average Gross
Longshore Sediment Transport, m3/yr
River, OR/WA
FL
Representative Wave Height, m
2.1 m / Grays Harbor, WA
0.5 m / Murrells Inlet, SC
Representative Wave Period, s
10 sec / Grays Harbor, WA
4.4 sec / Gordon Pass, FL
0.82 mm / Venice Inlet (Casey's
0.21 mm / Gordon Pass, FL
Median Grain Size, mm
Pass), FL
7.50x106 m3/yr / Savannah
1.31x103 m3/yr / Wilson Harbor
Representative Average Annual
Entrance Dredging, m3/yr
River, GA
(Lake Ontario), NY
Maintained Channel Depth Between
16.76 m / Columbia River,
2.44 m (inner channel) / New
Jetties MLLW, m
OR/WA
Pass, FL
Maintained Channel Width Between
609.6 m / Columbia River,
18.29 m / Mispillion River, DE
Jetties MLLW, m
OR/WA
6
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