Laserfiche WebLink
<br />State of Wyoming 1268-DR-WY <br />Hazard Mitigation Survey Team Report <br /> <br />Use new design standards for replacement poles and structures. <br /> <br />Through-bore poles at the ground line before initial treatment to <br />increase their life expectancy and lessen strength degradation. <br /> <br />Use braced, laminated or fiberglass crossarms. Since these are <br />engineered members, the strength is a known quantity unlike solid- <br />sawn crossarms. <br /> <br />Add X-braces to H-frame structures to increase their strength if not <br />already existing. <br /> <br />Shorten conductor spans between structures. <br /> <br />Design power structures for heavier snow, ice, and wind loads. <br />This recommendation could be very effective in areas of recurring <br />localized damage. <br /> <br />Increase Conductor Strength and Life <br /> <br />Use anti-galloping devices on the lines to reduce damage caused <br />by wind induced galloping. <br /> <br />Use stronger conductors in the system to provide greater line <br />strength. Because this could cause structures to fail, this item <br />should be combined with other measures that increase strength in <br />the entire system design. <br /> <br />Add vibration dampers for minimizing the effects of strong winds. <br />Vibration dampers can protect the conductor from long term <br />damage. <br /> <br />Increase conductor separation on poles or structures to reduce <br />conductor contact during galloping oscillations. <br /> <br />LEAD AGENCY: <br /> <br />Rural Electric Associations (REA) <br /> <br />PARTNER AGENCY: <br /> <br />Department of Energy's Western Area Power Administration <br />(WAPA) <br /> <br />TIME FRAME: <br /> <br />Incorporate into current maintenance and new design schedules. <br /> <br />FUNDING: <br /> <br />Use existing budgets to establish an emergency fund <br />FEMA (HMGP) <br /> <br />11 <br />