Current through Register Vol. 63, No. 3, March 1, 2024
(1) An existing object, including a mobile
object, is, and a future object would be, an obstruction to air navigation if
it is of greater height than any of the following heights or surfaces:
(a) A height of 500 feet above ground level
at the site of the object;
(b) A
height that is 200 feet above ground level or above the established airport
elevation, whichever is higher, within three nautical miles of the established
reference point of an airport, excluding heliports, with its longest runway
more than 3,200 feet in actual length, and that height increases in the
proportion of 100 feet for each additional nautical mile of distance from the
airport up to a maximum of 500 feet;
(c) A height within a terminal obstacle
clearance area, including an initial approach segment, a departure area, and a
circling approach area, which would result in the vertical distance between any
point on the object and an established minimum instrument flight altitude
within that area or segment to be less than the required obstacle
clearance;
(d) A height within an
enroute obstacle clearance area, including turn and termination areas, of a
federal airway or approved off-airway route, that would increase the minimum
obstacle clearance altitude;
(e)
The surface of a take-off and landing area of an airport or any imaginary
surface established under OAR 738-070-0120 or 738-070-0130. However, no part of
the take-off or landing area itself will be considered an
obstruction.
(2) Except
for traverse ways on or near an airport with an operative ground traffic
control service, furnished by an air traffic control tower or by the airport
management and coordinated with the Federal Aviation Administration's air
traffic control service, the standards of section (1) of this rule apply to
traverse ways used or to be used for the passage of mobile objects only after
the heights of these traverse ways are increased by:
(a) 17 feet for an interstate highway that is
part of the National System of Military and Interstate Highways, where
overcrossings are designed for a minimum of 17 feet vertical
distance;
(b) 15 feet for any other
public roadway;
(c) 10 feet or the
height of the highest mobile object that would normally traverse the road,
whichever is greater, for a private road;
(d) 23 feet for a railroad;
(e) For a waterway or any other traverse way
not previously mentioned, an amount equal to the height of the highest mobile
object that would normally traverse it.
Stat. Auth.: ORS 184, ORS 835 & ORS 836
Stats. Implemented: ORS
836.530
