No new subdivision plat of lands within Portland or of any addition to Portland may be filed for record, nor may any street, alley, or other way be dedicated, until the plat or dedication has been submitted to the City Administrator together with proof that all special assessments on the property included have been paid or bonded under the provisions of this Title relative to local improvement assessments, and until the City Administrator has endorsed the plat or dedication with their certificate that the special assessments appear to have been paid or payment has been provided for by bonding and that the plat or dedication is of a suitable and convenient character. If a portion of property covered by a bonded assessment is sought to be subdivided or dedicated, the owner must first obtain an apportionment of the assessment lien in accordance with procedures set forth in the City Charter. Whenever any plat of any addition or subdivision of land within the corporate limits of the City is submitted to the City Administrator, it is the City Administrator’s duty, before approving the plat, to require that all streets and alleys marked on the plat be of adequate width and the City Administrator may require the streets and alleys to be aligned with other streets and alleys or extensions of them, abutting on the land to be platted.