(a) General Requirements. All research, investigation, monumentation, measurement specifications, plats of survey, descriptions, and subdivision plats shall conform to the Minimum Standards for Boundary Surveys in the State of Ohio, Section 4733-37-03 (Administrative Code) Ohio Revised Code. These standards are intended as a minimum requirement, and where the surveying profession requires or recommends a higher level of standards, the higher or most restrictive of such standards shall apply. Additional standards for monumentation may be found in the City Standard Plans and Specifications.
(b) Location. Monuments shall be placed at all angle points on the outside boundary of the subdivision. Iron pins shall be placed at all corners of all lots, intersections of the centerlines of streets, and at the beginning and end points of each curved street section centerline. In those cases where sanitary sewer manholes prevent the setting of monuments, such monuments shall be offset five feet (5') in each direction along the street centerline. Monuments are to be tied to existing City of Galion monumentation and reported in Ohio State Plane North Zone NAD83 (Horizontal) and NAVD88 (Vertical).
(c) When Set. Monuments in the street centerlines shall be placed upon the completion of paving of the streets. All other monuments are to be set upon completion of the street, water, sanitary sewer improvements, and over lot grading and before acceptance of improvements by the City of Galion. Iron pins designating lots shall be set after grading of lots, but prior to pouring of sidewalks.
(d) Materials. Monuments to consist of, at a minimum, 36" 5/8" rebar set in concrete with a cap of bronze, aluminum or similar material of equal or greater permanence, as approved by the City Engineer. Iron pins shall be as per the standards cited above in subsection (a) above.
(e) Flood Plains. When all or part of a proposed subdivision is located within land subject too flooding, as defined in Chapter 1103, the Owner/Developer shall direct and cause the surveyor to place at least one benchmark tied to NAVD88 elevation data.
(f) Reference to State Plane Coordinate System. The Owner/Developer shall direct and cause the surveyor to place and set at least one (1) intervisible pair of NGS Class C monuments referenced to Ohio State Plane Coordinate System (North Zone NAD83).
(Ord. 2009-85. Passed 12-8-09.)