Orange County NC Website
2 <br /> Federal Aviation Regulations, Part 77 and PAvisory Circular <br /> 15075300-4, define certain imaginary surf aces around runways which <br /> should be maintained cli?ar of: obstructions. Of prime importance, the <br /> runway approaches should have a 20: 1 approach surface that is clear <br /> of all obstructions. The ends n minimum of <br /> 7100 feet n.ealbv rni . )t.ini!Jilu! clearance of 15 feet <br /> uhtai:1.=,6 chi: roadway surtacv:1 and the 20:1 approach <br /> surface to the runway. In addition, the ce.nterline of the runway <br /> should he located at least 250 feet from nearby roads, so that a <br /> minimum clearance of 15 feet may be obtained between the road surface <br /> and a 7:1 transitional surface for the runway_ It the roadway <br /> elevation is higher than the runway elevation, these minimum <br /> distances should be increased to provide the 15-foot vertical <br /> clearance above the roadway surface. These clearances should he <br /> increased to 17 feet for interstate highways. <br /> A general ordinance of the State of North Carolina provides that <br /> certain airport obstructions or alterations require a written permit <br /> prior to construction. The permit may be obtained from the North <br /> Carolina Department of Transportation. <br /> Stiould you have any questions concerning the above action or desire <br /> technical assistance in airport matters, our advisory service is <br /> available to you. <br /> Sincerely, <br /> • ) <br /> Thomas M, <br /> Prn4;ect .0,anagr <br /> Enclosures: <br /> Letter anfl Slmt&es <br /> cc: <br /> Federal Hig!:Iwy NrIministration <br /> North Carolina Dept. of Transportation <br /> Heritage Conservation & Recreation Service <br /> GADO, Raleigh, N.C. <br /> FSS, Raleigh, N.C. <br /> a 71 e 3 <br /> • <br />