Michigan Code § 259.482c

Width of Approach Surface; Outward and Upward Extension of Approach Surface.
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Sec. 2c.
(1) Based upon the most precise approach available or planned for the end of a runway, the width of the approach surface at the end of the primary surface equals the width of the primary surface and expands uniformly to the following maximum width: (a) For the end of a utility runway, which end has only a visual approach procedure 1,200 feet (b) For the end of other than a utility runway, which end has only a visual approach procedure 1,500 feet (c) For the end of a utility runway, which end has a nonprecision instrument approach procedure 2,000 feet (d) For the end of other than a utility runway, which end has a nonprecision instrument approach procedure and a visibility minimum established by the FAA that is greater than 3/4 of a statute mile 3,500 feet (e) For the end of other than a utility runway, which end has a nonprecision instrument approach procedure and a visibility minimum established by the FAA that is 3/4 of a statute mile or less 4,000 feet (f) For the end of a runway, which end has a precision approach procedure 16,000 feet (2) Based upon the most precise approach available or planned for the end of a runway, the approach surface extends outward and upward at the following slope for the following distance:
(a) For the end of a utility runway regardless of the available or planned approach, or for the end of other than a utility runway which end has only a visual approach procedure, a slope of 20 to 1 for 5,000 feet from the end of the primary surface.
(b) For the end of other than a utility runway, which end has a nonprecision instrument approach procedure, a slope of 34 to 1 for 10,000 feet from the end of the primary surface.
(c) For the end of other than a utility runway, which end has a precision instrument approach procedure, a slope of 50 to 1 for 10,000 feet from the end of the primary surface and, from that point, a slope of 40 to 1 for an additional 40,000 feet.
History: Add. 1986, Act 296, Eff. Apr. 1, 1987

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