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N.C. Department of Transportation

Year Submitted: 2007

Process: Cleaning

Industry: Government Agency-Includes Military

Wastes Reduced: Bilge oil

Location: Raleigh NC

Contact: Maureen Colwell

Phone: (919) 715-6054



Description:

North Carolina Department of Transportation's primary mission is to provide safe movement of people and goods in all modes of transportation. The department is responsible for infrastructure, improvement projects, education, and enforcement over all modes of transportation in the state of North Carolina. The Department of Transportation (DOT) has implemented waste reduction, recycling, and buyrecycled programs in response to the passage of the 1989 Solid Waste Management Act.

P2 Application:

Administration Office practices were changed to reduce the amount of supplies needed for daily work. These practices included printing and photocopying on both sides of the paper, making notepads from wastepaper, and reusing file folders and envelopes. Most offices also recycle office paper, aluminum cans, corrugated cardboard, newspaper, magazines, telephone books, laser toner cartridges, and typewriter ribbons.
Division of Motor Vehicles (DMV) In addition to the activities listed above, the DMV reduced over 50 percent of paper waste by automating the Drivers License procedures. Renewal notices mailed to drivers are now printed on much smaller sized cards, and computergenerated forms reduce both paper waste and the processing time required to renew a driver's license.
Ferry Division The Ferry Division incorporates several waste reduction activities in their operations. One of these operations includes an oil-water separator that cleans dirty water from ferry bilges and culls dirty oil for recycling. The shipyard has a state contract to recycle recovered bilge oil and used engine oil. Brass, copper, steel and other metals are also separated and recycled at the shipyard. At the Cherry Branch Ferry Landing, recycled plastic pilings are replacing treated wood pilings to reduce creosote leaching into the water.
Rail Division Winner of several environmental awards, this division runs a very clean operation. Some waste reduction activities at the rail division include on-board passenger recycling of aluminum cans, glass, and newspapers; and recycling of lead acid batteries, oil filters, and used oil during maintenance work. At the rail yard in Raleigh, oil-water separators are used for runoff generated while washing locomotives, and diapers are laid between the tracks in the yard to collect any drippings from trains before and after maintenance.
Division of Highways Repair and reuse activities have been incorporated in the design, building, and maintenance of 77,000 miles of roads and bridges in North Carolina. These practices include: storing of scrap wood in shops to build shelves and cabinets; using old crushed concrete as fill material; reusing guardrail posts; stripping of old street signs to make new; refilling of paint buckets; and composting of wood waste for shoulder material. In response to Senate Bill 111, House Bill 133, and the Intermodal Surface Transportation Efficiency Act (ISTEA), the NC DOT established a Recycled Products and Solid Waste Utilization Task Force. This task force examines the use of recycled products/solid wastes in its construction and maintenance operations. Since 1989, twenty-three projects have been selected to incorporate recycled materials, including: over 4 million chipped scrap tires; 26,000 tons recycled glass; 42,000 tons of fly ash; 14,000 tons of post-industrial asphalt shingles; various products made from recycled plastics, recycled polymer resins, poultry and hog waste, municipal sludge, clearing debris, and recycled concrete. "No-burn" policies have been included in construction contracts to prohibit the contractor from burning or landfilling the clearing debris and to encourage the recycling of wood waste. Special provisions have been written to prevent the contractor from landfilling removed concrete pavement, encouraging the reuse of the material by beneficial means. All construction contracts include a solid waste provision encouraging the contractor to incorporate recycled materials/solid wastes into the project, by sharing 50 percent of resulting cost savings.
Equipment Maintenance NC DOT operates equipment shops to maintain the large equipment fleet needed for DOT operations. At these shops, the following waste reduction activities take place. Old antifreeze removed from vehicles is filtered and used for topping off radiators or for use as a counterweight in heavy equipment tires. Old lead-acid batteries and used motor oil are recycled through state contracts. Equipment and vehicle tires are re-treaded when worn down to a tread depth of 3/32 inch. Gulf Coast filters installed on parts washers extend the working life of mineral-based solvents used in routine maintenance of off-road vehicles.
Roadside Environmental Unit This unit uses products bound for the landfill to amend soils and enhance moisture protection and weed control alongside roads in the state. Diverted material includes municipal sludge, clearing and demolition debris, and Hurricane Fran storm debris.
Rest Areas In response to Executive Order #8, recycling facilities were installed at all rest areas and welcome centers.
Roadside Cleanup More than 6000 Adopt-A-Highway groups have adopted approximately 13,000 miles of state-maintained highways. In Jackson County, all roadside litter is taken to a sheltered workshop where recyclables are removed from the collected litter.
Cooperative Repair and Reuse Program NCDOT and the Department of Correction created a program to train inmates at the Yanceyville prison to repair electrical, pneumatic, and hydraulic tools. Inmates receive college credit from Piedmont Community College upon successful completion of a tool repair training program. Prior to this program, broken small tools used by DOT were thrown away and replaced by new tools. Now, DOT pays only for parts and transportation to have small tools repaired.

  • Total Cost Savings: $467,544.00
  • Comments: NCDOT was recognized for Significant Achievement in the Government Category of the 1997 Governors Award for Excellence in Waste Reduction competition.

Details of Reductions

  • Bilge oil
    Comments: The Ferry Division incorporates several waste reduction activities in their operations. One of these operations includes an oil-water separator that cleans dirty water from ferry bilges and culls dirty oil for recycling. The shipyard has a state contract to recycle recovered bilge oil and used engine oil.
  • Oil
    Comments: Raleigh, oil-water separators are used for runoff generated while washing locomotives, and diapers are laid between the tracks in the yard to collect any drippings from trains before and after maintenance.
  • 4,218.0 - Tons of   Solid Waste
    Comments: NCDOT recycled and composted a total of 4,218 tons, approximately 21% of the total waste stream generated in the course of operations during the 1996-97 fiscal year. The recycling and waste reduction programs earned net savings of $467,544 from avoided disposal costs and the sale of the recyclables.



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