Alameda Point Bulkhead Featured at PDCA Conference
PND's Alameda Point Waste Isolation Bulkhead project was highlighted at the Pile Driving Contractors Association's (PDCA) 2017 conference on Design and Installation of Cost Efficient Piles (DICEP) held in Portland, Oregon, from September 19-21. The conference theme was, “The 4 E’s: Economy, Efficiency, Environmental and Effectiveness.” John Olson of PND Seattle delivered a 40-minute presentation on the Alameda project, which we think was an excellent example of the 4 E's!
The project consisted of the installation of an OPEN CELL SHEET PILE™ (OSCP) bulkhead to contain 60 years of buried contaminated waste material from Naval Air Station Alameda in California. Use of this technology as the preferred remedy for this Superfund cleanup project eliminated the need to excavate and haul waste 700 miles through major population centers for disposal in a hazardous waste disposal facility. The project saved the owner more than $25 million and three years in scheduled construction. The original estimate for excavation and haul was $33 million. Using the OCSP bulkhead remedy only cost about $8 million. Recycled materials were used extensively, and this remedy eliminated more than 10,000 tons of greenhouse gas emissions.
The owner was the U.S. Navy. When the Naval Air Station ceased operations in 1997, its decommissioning and closure was assigned to the Base Realignment and Closure (BRAC)Program Management Office. The Environmental Protection Agency designated the property a Superfund site in 1999. PND became involved in the project in 2012, after the original remedy was found to be unacceptable for number of reasons (cost, time, environmental impact, etc.) and an OPEN CELL™ bulkhead became the number one option. Design and feasibility studies occurred over a two-year stretch, with extensive oversight by the BRAC and our client, AMEC Environmental. Procurement and fabrication of the sheet piles occurred from September through December 2013. Site construction occurred from August to November 2014. PND provided fabrication and construction support services throughout the project.