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 STRUCTURAL
Grounds-Continued
n Earth Dams and Dikes:
damage from erosion
burrowing animals
seepage
lack of vegetation density or vigor of growth
drop inlet pipes for stoppage
logs
debris
outlet ends for erosion
piping damage or failure
n Emergency Spillways of Drop Inlet Dams:
blockage
erosion damage
Permanent Check Dams in Water Course:
overflow at notch section
bypassing at ends
erosion on downstream side
damaged and deteriorated walls and apron
Hillside and Terrace Diversion Embankment, Channels, and Culverts:
silt
debris
rank vegetation
low and weak sections
overflow
erosion
gullying
burrowing animals
5-30
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