Site Study - January 1979 - Laserfiche WebLink

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I RUNWAY ORIENTATION REVIEW r A. Utilizing the Existing Landing Strip Orientation For the purpose of this site study, the primary location and orien- t tation for the proposed airport runway is that of the existing northwest /southeast sod landing strip as graphically displayed on exhibits B and C. This runway alignment is referred to as Runway 16 -34 due to the magnetic azimuth or compass reading as an aircraft lines up with the runway centerline on its landing approach or take -off. The Burlington Northern Railroad mainline tracks, located immediately south of the existing landing strip, are the controlling factor in the placement of the proposed runway along the existing alignment. The runway approach surface must maintain, at least, a 23 feet clearance above the top of the rails. The critical distance between the runway ' primary surface and the railroad tracks, in this case, is along the western edge of the south approach surface (or clear zone) where approximately 900 feet of horizontal separation are required to maintain the 23 foot vertical separation. As measured along the runway centerline extended, the south edge of the primary surface must be approximately 1250' north of the northernmost rail. In extending the 3700' primary surface northwesterly along the existing alignment to provide for a 3300' runway, the centerline of newly constructed I 15