1. The filing of a plat in the office of the recorder at Juneau, Alaska, showing with definiteness and certainty the boundaries of such streets and alleys;

2. The filing of an identical plat with the borough clerk;

3. The formal dedication by the owner of such streets and alleys of the land embraced therein to the public for street purposes, including the construction, repair, and maintenance of water, sewer, electric, telephone, and other utility lines and systems thereon; which dedication must be executed in the manner required for the execution of deeds under state law or as modified herein;

4. The method of financing maintenance is identified;

5. The delivery of such dedication to the planning commission for its acceptance or rejection;

6. The acceptance of such dedication by the planning commission; provided, however, that no streets or alleys shall be constructed, repaired or maintained at borough expense unless specifically authorized by the assembly. No dedication shall be accepted by the borough unless the pattern of the streets and alleys so dedicated is in harmony with the present street and alley pattern of the borough, or is such as to not cause undue inconvenience or expense in providing public services along such streets and alleys. No such dedication shall be accepted unless the width of such streets and alleys conforms to the width of adjoining streets and alleys or as approved by the planning commission.