Illinois Administrative Code
Title 92 - TRANSPORTATION
Part 16 - AIRPORT HAZARD ZONING
Section 16.60 - Conical Surface
Universal Citation: 92 IL Admin Code ยง 16.60
Current through Register Vol. 48, No. 12, March 22, 2024
a) A conical is a surface that extends outward and upward from the periphery of the horizontal surface at a slope of 20 feet horizontally for each foot vertically, for a horizontal distance of 4,000 feet.
b) The conical surface does not include the precision instrument approach surface (see Section 16.80 ) and the transitional surfaces (see Section 16.90 ).
c) There is no conical surface for Departmental standards.
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