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You are in: Transportation › Road Services › Weed Control Program
Weed Control Program» 2008 No Spray Request and Property Owner/King County Maintenance Agreement form King County Road Services Division annually schedules its roadside weed control program for the unincorporated areas of the county and in some cities by contract. As part of the program, licensed technicians perform controlled herbicide spraying along some road shoulders starting in the spring and going through the summer. The spraying is performed to help reduce safety hazards for pedestrians, motorists and bicyclists. The spraying also controls noxious weeds that are toxic to some animals and pose environmental risks to native vegetation. The Seattle-King County Health Department monitors the Roads Maintenance Spray program for potential environmental health impacts and has been very pleased with the results of tests on herbicides applied using the division’s application methods. All herbicide applications are designed to keep roads and shoulders safe for motorists, bicyclists and pedestrians, prevent root systems from damaging the roadways and to reduce sod buildup that can cause roadway flooding and icy conditions in the winter months. Weed control also reduces fires that can ignite uncontrolled vegetation and overgrowth that can cause accidents due to reduced visibility. The Road Services Division uses small amounts of herbicides on a carefully controlled basis. Trained and licensed technicians use only those herbicides approved by the United States Environmental Protection Agency, Food and Drug Administration and the State Department of Agriculture. These technicians must take required annual certification refresher courses to maintain their license prior to performing any of the herbicide spraying. Applications are additionally guided by best management practices that include follow-up monitoring and soil testing. No routine herbicide spraying is conducted in ditches or near water, including rivers, streams, wetlands, bridge abutments, guardrails near water, levees, backslopes or in moratorium zones, which includes the Snoqualmie Valley and both Vashon and Maury Islands. Although, noxious weed control, which law mandates, can include spot spraying even in moratorium areas. The Road Services Division will also be removing all tansy ragwort from the right-of-way due to the flowering weed’s danger to animals. State and local laws require the removal of tansy ragwort and other noxious weeds. Residents who maintain the right-of-way are asked to place vegetation that may contain tansy ragwort in sealable bags to prevent the spread of this weed. King County offers citizens the opportunity to participate in a companion program to the Roads Maintenance Spray Program. The “Owner Will Maintain Program” allows residents to control vegetation on the right-of-way that abuts their property. To participate in this program, residents must sign an agreement with the county to maintain the right-of-way and to also post “Owner Will Maintain” signs in an area visible from the roadway. Maintenance agreements may be obtained below or by calling 206-296-8100 or toll-free by calling 1-800-KC-ROADS and must be completed and returned to the Road Services Division before an “Owner Will Maintain” sign can be issued. The signs are provided to property owners at no charge. To continue participation in this program, residents must complete a new agreement and submit it to the Road Services Division annually. Download, print and complete the 2008 No Spray Request and Property Owner/King County Maintenance Agreement form:
Road Maintenance Section 155 Monroe Ave. NE Renton, WA 98056
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