Demolition is underway at a formal naval air station in Alameda, California, and contractors are looking for ways to recycle the debris from the site, a report by the Alameda Sun says. Demolition of the buildings and pavement on-site at Alameda Point began May 23.
Crews have been separating concrete, asphalt, structural steel, sheet metal and rebar for recycling. The report says Joe Ernst, president of Oakland, California, contractor srmErnst, which is working on the project, says in the report recycling was part of its bid for the project.
The ground asphalt and concrete produced will remain on-site and be used under streets and on exterior concrete structures and surfaces.
Alameda Point Partners, the development group in charge of the demolition, plans to transform the space into a mixed-use neighborhood with a waterfront park. Workers have removed pavement on a space known as Seaplane Lagoon where Phase I of the waterfront park will be built, the report says. Ernst says in the report the next step for that area will be ground improvement in a 25-foot-wide band at the back side of the bulkhead.
Ground improvement will include soil cement mixing 15 to 20 feet deep. The report says placing cement in the ground densifies the soil and mitigates liquefaction risk and collapse during earthquakes. The report says the Navy removed material from the front of the bulkhead when they remediated the lagoon. The original bulkhead relied on fill to the top of the wall to brace it and offset pressure. The Navy did not replace it after removing all the contaminated soil there, the report says.
New infrastructure at the site is expected to be completed in the next two years, the report says. Vertical construction of the new buildings is scheduled to start by the end of 2018. The first residential units are expected to be complete by the second half of 2019.
The report says the 68-acre development will house 600 market-rate residential units, 200 affordable rental units, up to 600,000 square feet of commercial space and 15 acres of parks and public open space. New transportation services and facilities, including a new ferry terminal, are also planned for the development.