(A) Permanent monuments shall be placed at all corners and at points of tangency of curve lines along the boundary of the subdivision. Permanent monuments shall be of concrete with minimum dimensions of four inches by four inches at top, six inches by six inches at bottom, and 36 inches long, with a dowel of 3/8 of an inch in diameter, of at least 2-1/2 inches in length, imbedded so that the top of the dowel shall be flush with the surface and at the center of the monument.
(B) All lot corners not marked by concrete monuments shall be marked by galvanized or wrought iron pipe or steel bars at least 18 inches in length and not less than 1/2 of an inch in diameter. The top of the pipe or bar is to be set level with the established grade of the ground.
(C) In addition, a minimum of one permanent bench mark shall be established for each 20 acres, or fraction thereof, subdivided and at a location designated. This monument shall be of concrete with a minimum dimension of four inches by four inches at top, six inches by six inches at bottom, and 48 inches long with a brass plate securely fastened to the surface. On the brass plate shall be inscribed the number and elevation of the bench mark.
(D) All monuments shall be set such that they will not be moved by frost.
(E) The City Engineer shall be notified of monument placement. Concrete monuments shall be left exposed for two working days after notification to allow for inspection by the City Engineer's office.
(Ord. 81-0-19, passed 5-11-81; Am. Ord. 2011-O-4, passed 3-14-11)