On the Kawaihae watershed, which feeds into Pelekane Bay, we have been attacking the problem of erosion with a multi-pronged approach:
• Control of feral goats: we constructed 18 miles of goat-proof fence around the lower 6,600 acre watershed of Pelekane Bay, and have removed the goats from the area. This will allow vegetation to recover, and will decrease the amount of bare soil on the watershed.
• Installation of sediment check dams and erosion control fabric: in the most severely damaged areas, we have constructed simple rock dams wrapped in plastic to slow down overland flows during storms. The sediment being carried in the run-off can then settle out, preventing it from damaging downstream ocean environments.
Building a sediment check dam (L) and installing rolls of erosion control fabric (R).