a. Plunge pool of Mortar Gully.
b. Gully scarp of Coastal 6 Gully.
Figure 53. Examples of slope failure.
Table 15. Preliminary estimates of delay before natural pond drainage.
Distance
Max.
Max. recession
Min. time before
Gully
to pond (m)
recession (m)
rate (m/yr)
natural drainage (yr)
Bread Truck
65100
3.4
1.9
3550
In-Between
40
9.8
2.3
1720
Parachute
~80
9.3
3.1
2530
43
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