Iowa Code Title IX. Local Government [Chs. 331-420] § 355.6. Monumentation

1. The surveyor shall confirm the prior establishment of control monuments at each controlling corner on the boundaries of the parcel or tract of land being surveyed. If no control monuments exist, the surveyor shall place the monuments. Control monuments shall be constructed of reasonably permanent material solidly embedded in the ground and capable of being detected by commonly used magnetic or electronic equipment. The surveyor shall affix a cap of reasonably inert material bearing an embossed or stencil cut marking of the Iowa license number of the surveyor to the top of each monument which the surveyor places.

2. Control monuments shall be placed at the following locations:

3. If the placement of a monument required by this chapter at the prescribed location is impractical, a reference monument shall be established near the prescribed location. If a point requiring monumentation has been previously monumented, the existence of the monument shall be confirmed by the surveyor.

4. At least a minimum number of two survey control monuments are required to be placed before the recording of a subdivision provided the surveyor includes in the surveyor's statement a declaration that additional monuments shall be placed before a date specified in the statement or within one year from the date the subdivision is recorded, whichever is earlier.