16.40.170 Monuments.
A. Permanent monuments, constructed in accordance with the standard specifications, shall be installed in all new streets and in existing streets adjacent to subdivisions and as directed by the City Engineer.
B. Permanent monuments shall be located on all street intersections and centerlines, not more than 1,000 feet apart on tangents and at all beginnings and ends of curves. If the point of intersection of the tangents of the curve falls within the paved street area, the monument may be located at the intersection in lieu of the beginning and end of the curve. On long curves, monuments shall be located within the paved street area and on a clear line of sight. On streets extended to subdivision boundaries, monuments shall be installed when the length of the street exceeds 150 feet.
C. When permanent monuments cannot be located on street centerlines due to existing utilities, they shall be located 10 feet south or 10 feet west of the above stated centerlines, except as follows:
1. They shall be offset 10 feet on the radial line at the beginning and end of the curve.
2. On long curves, they shall be offset radially within the paved street area, maintaining a clear line of sight.
3. At the end of a cul-de-sac, they shall be offset 10 feet perpendicularly or radially.
4. At the end of the stub streets, they shall be located at least 10 feet from the end of the paved area.
D. Monuments not less substantial than a three-quarter-inch diameter galvanized iron pipe with a survey tag or other noncorrodable cap permanently attached thereto, not less than 30 inches in length and driven flush with the surface of the ground, shall be set at all angles and curve points on the exterior boundary of the subdivision and as required by the City Engineer. If monuments are required to be set below the surface of the ground, the depth to the top of the monument shall be stated on the final map. Boundary monuments may be required to be more substantial than the minimum requirements specified in this section due to unusual circumstances, and suitable monuments shall be installed in these cases as directed by the City Engineer. Concrete monuments, if required, shall be constructed in accordance with the standard specifications without the frame, cover and concrete collar.
E. The corners of each lot in the subdivision shall be marked by a monument as described in subsection D of this section unless otherwise approved by the City Engineer.
F. No person shall remove or disturb, or cause to be removed or disturbed, any monument, azimuth, reference or witness mark set for the purpose of locating or preserving the lines of any street or subdivision or as a benchmark or as a control monument.
G. In the event it becomes necessary to remove or disturb a monument, the person so requesting shall first obtain permission in writing from the City Engineer.