00711710

Component

http://onlinepubs.trb.org...onf/1995/cp7/cp7v2-005.pdf

The Williamsburg Bridge Main Cable and Suspension System Rehabilitation Project began in 1991 amid public outcry that the communities surrounding the bridge were being contaminated with lead from construction activities. The Occupational Safety and Health Administration was about to lower the construction lead exposure limit to match industry standards. Intense scrutiny existed at the advent of this project: work was about to begin on a structure containing layers of flaking lead-based paint; in addition, the principal protective coating for the main cables would be a 92% pure lead paste, all of which would result in a waste stream containing 100 tons of lead. This project was atypical in the sense that containment activities had to address solid wastes (paint chips) and liquid wastes (preservative oil for main cable work) and had to be implemented at the lofty main cable areas over active traffic, transit, and pedestrian ways. The approach taken to make this project an environmental and contracting success was twofold. The first was to incorporate partnering on an informal basis to attain a common environmental standard with which all of the project's parties could concur. The second was to identify each operation that generated a hazardous material and to develop a specific engineering control to address every activity within the operation, from containment to disposal. Each control was tested and evaluated with the appropriate monitoring methods. Each engineering control ultimately was incorporated into the project's Hazardous Waste and Raw Material Management Plan. This "performance-based" approach allowed the development of a readily accepted environmental plan.

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00711666

English

p. 45-55

1995

Transportation Research Board Conference Proceedings

Fourth International Bridge Engineering Conference

0309061091

Figures (1) ; Photos (8) ; References (4) ; Tables (3)

Cables; Conferences; Containing equipment; Driver rehabilitation; Hazardous wastes; Lead based paint; Partnerships; Protective coatings; Suspension bridges; Waste disposal

Containment; Disposal; Rehabilitation; Removal

Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods

TRIS, TRB

Sep 6 1995 12:00AM