A. All monuments and control points shall be placed by a licensed land surveyor, and must be in place prior to the installation of any roadway improvements.

B. To the extent it is practicable, monuments should be installed in locations that will prevent disturbance or destruction of the monument by construction activities. Any monuments disturbed or destroyed during roadway construction shall be reestablished in conformance with the provisions of this Code by a licensed land surveyor.

C. All corners of subdivisions and points of curvature (P.C.) and points of tangency (P.T.) along boundary lines of subdivisions shall be marked with a one-half inch iron rod, two feet in length, set in the center of a concrete monument six (6) inches in diameter and thirty (30) inches deep, with the top of the concrete monument set flush with the finished ground surface.

D. Where, due to topographic conditions, permanent structures, or other conditions, the view is obstructed between any two adjacent monuments, intermediate monuments shall be set as to assure a clear view between adjacent monuments.

E. Corner markers shall be a one-half inch iron rod, or three-fourths inch pipe, two feet in length, and shall be installed flush with the ground. Corners of all lots, block corners, street right-of-way P.C.s and P.T.s shall be marked with corner markers.

F. One permanent benchmark must be installed and referenced to the North American Datum 1983 and the State Plane Coordinate System (Texas State Plane grid coordinates, Central Zone, Feet). Surface coordinates may be provided, but should include a scale factor and convergence to reflect grid coordinates. The City Manager may waive the requirement for installations of a benchmark for subdivisions smaller than 50 acres when at least two benchmarks are located within one-half mile of the proposed subdivision boundaries.