MIL-HDBK-1025/5
Minimum Depth. Use the sum of the values of design draft,
c)
squat, and one-half the wave height plus overdepth requirements to obtain
design minimum depth.
Construction
2.5.1.3
For channel construction in most bottom materials, dredge flat
a)
slopes in the channel or provide additional width or depth to contain the
material sloughing from the dredged slope.
Type of dredging shall be decided primarily on the basis of
b)
the quantity of material to be dredged and wave exposure.
Maintenance Dredging
2.5.1.4
It involves removal of deposition caused by shoaling and
a)
siltation, and all floating debris.
In small-boat basins which are inaccessible to standard or
b)
portable dredging equipment, or where the total bed material cannot be reached
by land-based equipment, maintenance work may be accomplished in one of the
following ways:
1) By hydraulic pumping equipment.
2) By small floating draglines.
3) By divers
Breakwaters
2.5.2
Purpose
2.5.2.1
To prevent or reduce wave energy transmission into the small
a)
craft harbor basin.
To provide more sheltered conditions for craft and berthing
b)
facilities.
To protect the harbor entrance.
c)
Evaluate and obtain:
2.5.2.2 Design Data.
Degree of protection intended in lee of the structure.
a)
Wave runup.
b)
Hydrographic (bathymetric) and topographic surveys of the
c)
site.
Degree of permissible overtopping.
d)
Hydraulic model analysis for the wave-basin space.
e)
Shape and roughness of armor material.
f)
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