ASPIRE is a quarterly magazine published by PCI in cooperation with the associations of the National Concrete Bridge Council. The editorial content focuses on the latest technology and key issues in the Concrete Bridge Industry.
Issue link: http://www.aspiremagazinebyengineers.com/i/306888
New Life in Old Material by Geoff Crook, Oregon Department of Transportation Recycling: Making the Old New Again For contractors working on the bridge program, the benefits of recycling are many, such as the avoidance of hauling costs and landfill fees. For local communities, recycling on site or nearby means less noise and truck traffic and better air quality. In addition, recycled or reused concrete conserves land and aggregate resources. Contractor Staton Cos. helped ODOT set the standard for success in reuse and recycling early in the program when it demolished the Burlington Northern Santa Fe railroad bridge in Madras and the California Avenue and Green Springs Drive Bridges in Klamath Falls, both on U.S. 97. On these projects, Staton salvaged 100% of the concrete from the demolitions. In Madras, almost 580 tons of concrete were delivered to Cinder Butte Rock in Redmond for crushing and reuse. In Klamath Falls, the company was able to set the bar even higher by recycling the material on site. It removed 7227 tons of concrete from two bridges and crushed it into 1-in. rubble. Five hundred tons of With a 10-year duration, involving 365 bridges, and costing $1.3 billion, the Oregon Transportation Investment Act (OTIA) III State Bridge Delivery Program is Oregon's largest infrastructure project in five decades. The massive scope of the bridge program has given the Oregon Department of Transportation (ODOT) an opportunity to make the three "Rs" of reduce, reuse, and recycle standard practices in bridge and highway construction. In 2005, the agency and the Oregon Department of Environmental Quality worked to develop a set of materials performance standards for use on the bridge program. These standards direct contractors to handle construction waste, including concrete debris, to achieve the "highest and best end use," preventing waste generation and minimizing disposal in landfills. According to the Construction Materials Recycling Association, more than 140 million tons of concrete are recycled every year in the United States. ODOT is eager to contribute to this process. Halfway through the bridge program, we already have many successes to report. Concrete Reuse and Recycling on Oregon's Bridge Program 20 | ASPIRE , Fall 2008 ASPIRE_fall08.indb 20 9/15/08 4:01:20 PM