Island Habitat Restoration
Design development was completed for restoring the Cat Island chain near the Port of Green Bay navigation channel. Post-construction, the island will provide a new disposal site for clean dredged material and produce major environmental benefits in the form of habitat on the island as well wave sheltering for a sensitive coastal wetland nearby.
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Green Bay, Wisconsin
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The restoration design is a multi-use solution providing habitat, habitat protection and a disposal area for dredged material from the navigation channel.
- Innovative approaches for sequencing construction of the islands
- Provisions for different habitats on the island
- Capacity for nearly 2 million yds3 of material, equivalent to 20 years of disposal capacity
- Nearly 200,000 yds3 of material dredged was re-used for beach nourishment
- Provide a long term storage solution for the disposal of dredge material.
- Improve habitat for various species of waterfowl and plants.
- Provide an efficient construction sequence.
- The form of the island was created with containment dikes.
- Extensive physical modeling determined the optimum shoreline configuration to enhance habitat.
- Construction of a spine of the island was proposed to provide a platform for equipment access and offer wave protection.