Wetlands Restoration
Ottawa National Wildlife Refuge
Oak Harbor, OH (2004)
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This wildlife refuge needed to block off 52 acres of wetlands, to control the water depth. They needed to protect wetland plants on the mud flats until they had been established 18 months. Water levels would not affect their growth after that point.  
Oak Harbor, OH
 This crew is made up of the US Geological Survey and Ottawa National Refuge personnel. The installation consisted of 6' x 1,500' of AquaDams® in seven separate sections. At this point we had cleared the brush and started the AquaDam® on the bank of the marsh.
Oak Harbor, OH
The AquaDam® rolls down the hill to the foot of the slope. The start (fill end) of the AquaDam is placed at least 6' up the bank. Fill tubes extended even further up the bank. Fill hoses were inserted into the first 10' of the fill tubes.
Oak Harbor, OH
Depending on which way the wind blows, this mud flat, which is not very deep, can be completely blown dry by the wind. If the winds turns and comes from the opposite direction, it can blow water into the portion of the refuge, increasing the water depth to a maximum of 3.9 inches.
Oak Harbor, OH