At Rivermiles 5.5-4.7 (both banks), create a minimum of 10 acres of new off-channel, shallow water/marsh habitat. Because of the large size of this proejct, itmay be necessary to conduct it in phases and in multiple locations (the 10 acres need not be contiguous). One possible site for consideration is the Hamm Cree/City Light North property at RM 5.2-4.9, left bank.

The downstream limit of the potential project area may be revised based on the results of the Duwamish Transition Zone study ending in 2005.

The project depends on identifying suitable properties whose owners are willing to sell. The cost of property in this area is high. Even doing the project in phases and multiple locations may require the simultaneous acquisition of several adjacent parcels to create projects with adequate habitat value and economies of scale.

There may be opportunities to create/improve off-channel habitat in aquatic lands outside the shipping channel, possibly in conjunction with sediment cleanup efforts

Use of the Hamm Cree/City Light North property depends upon Seattle City Light agreeing to sell the property and securing suitable alternative sites for future substation or electrical generation needs.