A. The following improvements necessary to protect public health and safety must be installed in accordance with City approved plans and must obtain interim acceptance, as defined in the City of Helena Engineering Standards, prior to City Commission approval of a final plat:
1. Water and wastewater systems and appurtenances serving all lots to be final platted;
2. Streets providing legal and physical access to all lots within the subdivision, including off-site access to the subdivision, installed with a minimum all weather surface that can accommodate emergency access.
B. In addition to the public improvements identified in subsection A of this section, the City Commission may require public improvements listed in section 12-2-15 of this chapter to be installed and completed prior to obtaining final plat approval if there is a finding at the time of preliminary plat review that the installation of those public improvements prior to filing the final plat are necessary to protect public health and safety.
C. In lieu of the completion of the construction of public improvements not identified in subsection A or B of this section, prior to the approval of a final plat, the subdivider may provide a bond or other reasonable security, in an amount and with surety and conditions satisfactory to the City that provide for and secure the construction and installation of the remaining required improvements within eighteen (18) months from the date of final plat approval. Reasonable time extension may be granted by the City Commission provided bonding or other security is also extended. The amount of the bond or security may be reduced in accordance with completion and final City acceptance of portions of the required improvements. (Ord. 3245, 10-29-2018)