Wet Snow and Wind Loading
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Snow and Ice Loading Zones Weather Loading Summary - AESO Tower Development Wet Snow & Wind Loadings 100 Year Return Values Wind Speed Wind Pressure Wind Pressure Wind Pressure Radial Wet Snow (km/hr) at 10m (Pa) at 20 m (Pa) at 30 m (Pa) at 40 m Accretion (mm) Height Height Height Height Zone A 70 77 295 320 340 Zone B 70 71 240 260 280 Zone C 50 67 210 230 245 Zone D 50 64 190 205 220 75 Year Return Values Wind Speed Wind Pressure Wind Pressure Wind Pressure Radial Wet Snow (km/hr) at 10m (Pa) at 20 m (Pa) at 30 m (Pa) at 40 m Accretion (mm) Height Height Height Height Rainbow Lake High Level Zone A 65 75 270 290 310 Zone B 65 70 235 255 270 Zone C 45 65 200 215 230 Zone D 45 62 180 195 210 La Crète 50 Year Return Values Wind Speed Wind Pressure Wind Pressure Wind Pressure Radial Wet Snow (km/hr) at 10m (Pa) at 10 m (Pa) at 20 m (Pa) at 30 m Accretion (mm) Height Height Height Height Zone A 60 74 220 255 280 Zone D Zone B 60 69 190 220 240 Zone C 40 63 160 185 200 Zone D 40 60 145 170 185 Wet snow density 350 kg/m3 at -5C Table Data Last Update: 2010-03-25 Manning Fort McMurray Peace River Grimshaw Fairview Spirit River Falher McLennan High Prairie Sexsmith Beaverlodge Slave Lake Grande Prairie Valleyview Lac la Biche Swan Hills Athabasca Cold Lake Fox Creek Bonnyville Westlock Whitecourt Barrhead Smoky Lake St. Paul Grande Cache Mayerthorpe Legal Redwater Elk Point Bon Accord MorinvilleGibbons Lamont Fort Saskatchewan Two Hills St. Albert Edson Sherwood ParkMundare Stony PlainEDMONTON Vegreville Hinton Vermilion Tofield DevonBeaumont Lloydminster CalmarLeduc Drayton Valley Viking Millet Camrose Wetaskiwin Jasper Daysland Wainwright KillamSedgewick Hardisty Zone C Ponoka Rimbey Zone B Bashaw BentleyLacombe Provost Rocky Mountain HouseEckville Blackfalds Stettler Sylvan Lake Red Deer Castor Penhold Coronation Innisfail Bowden Trochu Sundre Olds Three Hills Didsbury Hanna Carstairs Crossfield Drumheller Oyen Airdrie Banff Cochrane Canmore CALGARY Strathmore Bassano Zone A Okotoks Black Diamond High River Brooks Vulcan Nanton Stavely Vauxhall Medicine Hat Claresholm Greater Medicine Hat Bow Island Granum Picture Butte Taber CoalhurstCoaldale Fort MacleodLethbridge Blairmore Pincher Creek Raymond Magrath Disclaimer: This map was developed for the purpose of the new tower family development and may not be suitable Cardston Milk River for lines in all areas of the province. Be sure this map is suitable for your requirements. Snow_And_Ice_Loading.mxd JFietz 2010-03-15.