Monuments, to serve as permanent reference points,
shall be placed in accordance with the following requirements:
A. At least one (1) corner of the subdivision shall be
designated by bearing and distance tie from a readily discernible
reference marker. If a corner is within two thousand (2,000) feet
of a United States Coast and Geodetic Survey station or a station
of the state coordinated grid system, then this corner shall be marked
with a monument designated by computed coordinates to an accuracy
of one in ten thousand (1:10,000), and such monument shall be identified
on the final subdivision plat. Where such reference station is not
available, the tie shall be made to some permanent and readily identifiable
landmark.
B. Monuments shall be placed in the ground at all corners
and at angle points in the boundary lines of the subdivision, at all
points of angles and curvature in the right-of-way lines of all streets
and at all lot corners within the subdivision.
C. At designated points in the outer boundary and at
a minimum of at least two (2) points in each block of the subdivision,
such monuments shall be designated as control points and shall be
of stone or precast concrete not less than four (4) inches square
or four (4) inches in diameter and at least thirty (30) inches long.
In all other locations, the monuments or markers shall be steel or
wrought iron pipe not less than one-half ( 1/2) inch or more
than one (1) inch in diameter and at least twenty-four (24) inches
long. The monument shall not extend more than four (4) inches above
ground level.