Appendix 306. MONUMENTATION

306.1

All lot corners shall be marked with iron pins not less than one-half (½) inch in diameter and minimum of eighteen (18) inches long and driven so as to be flush with the finished grade.

306.2

All iron pins shall be permanently installed prior to the signing of the Transparent plastic film by the Governmental Engineer or City Manager. If pins are not installed prior to the time that the Transparent plastic film is ready for signing, the developer may post a bond with the Governmental Engineer in an amount sufficient to ensure that the monuments and pins can be installed.

306.3

For residential subdivisions with more than 25 lots and any development over 25 acres, at least two of the concrete monuments required under §306.1 shall be designated as control monuments and located with a ratio of precision of no less than 1:20,000 in Tennessee State Plane coordinates in the North American Datum of 1983 (NAD83). The intent of these location coordinates is to position the subdivision on the surface of the Earth and the final plat on the official Hamilton County property maps. The monuments shall be separated by sufficient distance to allow them to locate the entire boundary properly.