§ 97.18  MASTER PLAN FOR NUMBERING BUILDINGS.
   On all streets in the city, the odd numbers to be affixed to the buildings thereon shall be on the right-hand side and the even numbers on the left-hand side in the progressive order of numbering commencing with the lowest numbers, and proceeding therefrom with increasing numbers, as follows:
   (A)   On the east side of the Merrimack River, in streets running northerly and southerly, the numbering shall commence at Kennedy Street, West Baker Street, Baker Street and Cilley Road, or at the northerly or southerly ends of streets not connecting with Kennedy Street, West Baker Street, Baker Street and Cilley Road on the northerly and southerly sides thereof.
   (B)   On the east side of the Merrimack River, in streets running easterly and westerly, the numbering shall commence at Elm Street from Mitchell Street and West Mitchell Street northerly; from Mitchell Street to the junction of Brown Avenue and Calef Road, the numbering shall commence at Calef Road in streets running easterly; from West Mitchell Street to the junction of Brown Avenue and Calef Road, the numbering shall commence at Brown Avenue in streets running westerly; from the junction of Brown Avenue and Calef Road southerly, in streets running easterly and westerly, the numbering shall commence at Brown Avenue.
   (C)   On the west side of the Merrimack River, in streets running northerly and southerly, the numbering shall commence at Granite Street from Main Street and South Main Street to the Merrimack River; from South Main Street northwesterly, the numbering shall commence at the Piscataquog River, or at the northerly or southerly ends of streets not connecting with Granite Street or the Piscataquog River on the northerly or southerly sides thereof.
   (D)   On the west side of the Merrimack River, in streets running easterly and westerly, the numbering shall commence at the Merrimack River, or at the easterly or westerly ends of streets not extending to or crossing the Merrimack River, and at Elm Street in streets crossing the river.
   (E)   Any entrance or door to a building fronting the street shall be designated by a separate number, but numbers may be omitted for vacant lots and spaces which may be built upon hereafter.
('71 Code, § 22-19)