MIL-HDBK-1025/5
Floods
2.7.5
Nature of Damage. Flood damage, at harbor sites on or near a
2.7.5.1
river, is in the form of debris accumulation and collision of floating objects
with structures.
Protection.
2.7.5.2
Provide training wall as protection against debris and
shoaling hazards.
Summary of Common Design Problems
2.8
Problems.
The problems most commonly reported for small-craft
2.8.1
berthing facilities are listed in paras. 2.8.1.1 through 2.8.1.6.
Ice
2.8.1.1
Windblowing or movement by currents of ice floes constitutes a
a)
serious regional problem. Free-floating cake ice is the greatest cause of ice
damage.
If feasible, piles shall be driven butt-end down where ice
b)
formation is anticipated.
In a floating-pier system, the greatest damage is caused by
c)
ice crushing the floats. Forced-convection or bubbler systems are effective
for ice prevention.
Corrosive
Environment
2.8.1.2
Failure of low-level lighting systems due to sea spray in high
a)
wind
conditions is a problem.
Frequency of corrosion of water valves by seawater
b)
necessitates the selection of T-type faucet handles over the circular type.
Use of untreated wood for decking or structural members of
c)
fixed piers.
Fuel Dispensing
2.8.1.3
Fueling boats during extreme low water levels at fixed-pier
a)
stations.
Reliability of fuel line connections to floating-pier
b)
stations.
Floating-Pier Systems
2.8.1.4
a) Difficulty of adjusting chain or cable anchorages during water
level fluctuation cycles and tendency of these systems to drift beyond
desirable limits.
Time and difficulty involved in seasonal removal and storage
b)
of floating systems at locations requiring winter security.
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