When it comes to environmental stewardship, actions speak louder than words. Provided here are just two examples of innovative, proactive steps Duke Realty took to remediate, reuse and recycle in development projects last year.
Goodyear – Columbus, Ohio
Our company delivered a build-to-suit facility for this national retailer and looked for ways to incorporate sustainable practices, processes and products. As part of our development of the 1.2 million-square-foot distribution center in Columbus, Ohio, we completed an erosion control inspection and implemented recommendations from the report to ensure the cleanliness of storm water during construction. Another step we took was to install LED lights with occupancy sensors that automatically turn lights off when areas of the building are not being used to conserve energy. In addition, plumbing fixtures identified with the WaterSense label were incorporated. This is a designation that products are backed by independent, third–party certification and meet EPA’s water efficiency and performance specifications. Lastly, we opted to install a beige roof, rather than white, to limit visible staining yet still reflect the heat load and help the HVAC system run more efficiently.
Park 81 North – Minneapolis, Minnesota
Park 81 North in Minneapolis, Minnesota, is being developed on the site of a former precast concrete plant. To accommodate new construction, several on-site precast and block buildings and utility structures were demolished. The resulting concrete, along with abandoned concrete planks, were pulverized, resulting in more than 80,000 tons of crushed concrete that will be reused as pads under future new buildings in the park. Site cleanup also entailed appropriately removing contaminated soil, buried fuel tanks, asbestos, fluorescent lamps, ballasts, mercury and oil. Duke Realty’s first building in Park 81 North is scheduled for completion in September 2019, with land available for two other future buildings. These redevelopment efforts will provide a productive, economic benefit for the community, and eliminate the negative externalities associated with stranded hazardous waste.
11600 Alameda Street, Lynwood, CA
In 2017, we acquired 8.67 acres in Lynwood, California, for development of a new 201,000-square-foot warehouse. The site needed extensive remediation since it was a heavy industrial site for more than 70 years and had both soil and groundwater contamination. The California Department of Toxic Substances Control approved our removal action work plan, and we began work to transform the land into a developable parcel. Among other things, we:
- removed all remaining concrete foundations and slabs and crushed and used them as engineered structural fill beneath the building pad;
- took nearly 6,500 tons of heavily impacted soil offsite for proper disposal;
- completed enhanced in-situ bioremediation with a large injection of solubilized substrate and emulsified oil to accelerate natural degradation of groundwater contaminants; and
- added a vapor barrier and under-slab pressurization system to provide additional protection against vapor intrusion, along with a vapor extraction system.
After the transformation was complete, we delivered the building and fully leased it by November of 2017. We will continue groundwater monitoring of the natural attenuation process to verify its effectiveness.
240 THE BLUFFS, ATLANTA, GA
240 The Bluffs is a redevelopment project involving the demolition of a vacant, obsolete, 270,000-square-foot office building. In keeping with our commitment to sustainability, we took steps to ensure that as much of the materials removed from the original structure were recycled or repurposed. We reused more than 13,000 tons of crushed brick and concrete as clean fill in non-critical areas on-site. We diverted other materials removed from the former building to salvage companies for recycling, including 5,900 tons of asphalt; 19,000 pounds of non-ferrous metals, such as copper pipe, wire, radiators, aluminum and breakers; and 900 tons of steel.