Any person required to make improvements by the provisions of this chapter shall either make and complete the same to the satisfaction of the director of public works and director of utilities, or shall enter into an agreement with the city upon mutually agreeable terms to thereafter make the improvement required by this chapter. The agreement shall be secured by a bond filed with the director of public works by the permittee and shall be in an amount as the director of public works shall estimate and determine to be necessary to complete the required improvements. A letter of credit may be used to secure the agreement if acceptable to the director of public works. (Ord. 2017-0009 § 11)