The location, names, and present widths of existing
and proposed streets, highways, easements, buildings, parks and other
open spaces on or adjacent to the subdivision. The plan shall contain
sufficient data to allow the location, bearing and length of every
street line, lot line, and boundary line to be readily determined
and be reproduced upon the ground. These lines shall be tied to reference
points previously established. The location, bearing and length of
street lines, lot lines and parcel boundary lines shall be certified
by a registered land surveyor. The original reproducible plan shall
be embossed and printed with the seal of the registered land surveyor
and be signed by that individual.