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The proposed.structure would be located approximately one nautical mile <br />southwest of Hamel, Minnesota. It would be a 205' reduction in height <br />to a previously proposed 1195' AGL/2195' AMSL structure. <br /> <br />At the reduced height, the proposal would exceed the Obstruction standards <br />of the Federal Aviation Regulations, Part 77, as follows: <br /> <br /> Section 77.23(a)(1) by 490' - a height more than 500' above <br /> ground level (AGL). <br /> <br />Section 77.23(a)(3) by 441'- a height that increases a <br />minimum instrument flight altitude within'a terminal area <br />(TERPS Criteria). ' <br /> <br />Section 77.23(a)(4) by 641'- a height that increases a <br />Minimum Obstruction Clearance Altitude (MOCA) (En route <br />Criteria). - <br /> <br />In addition, the proposed structure would cause varied increases to <br />Minimum Safe Altitudes (MSAis) in quadrants of the following airports: <br /> <br />1. Anoka County/Blaine - SW quadrant from 2800' ~24SL to <br /> 3000' AMSL. <br /> <br />2. Gateway North Industrial Airport - SW qUadrant - from <br /> 2700' AMSL to 3000' AMSL. <br /> <br />3. Crystal Airport - SW quadrant - from 2800' AMSL to- <br /> 3000' AMSL. <br /> <br />4. Flying Cloud Airport - NW quadrant - from 2700' AMSL <br /> to 3000' AMSL. <br /> <br />The proposal was circularized to the public for aeronautical comment by <br />letter dated November 16, 1979. Eighteen letters were received as a <br />result of the circular. <br /> <br />The Metropolitan Council of the Twin Cities Area and the City of Medina <br />stated they did not wish to comment on the proposal. <br /> <br />The Metropolitan Airports Commission stated they have no objection to <br />the proposed construction. <br /> <br /> PAGE 2 OF 5 PAGES <br /> <br /> <br />