The developer shall establish and clearly mark
on the site the limits of the road right-of-way and easements, the
center line and grades of the road pavement and the location and elevation
of drainage and drainage structures in accordance with the approved
plans. Such markers shall be maintained at the developer's expense
until the construction of all required improvements within the right-of-way
limits has been completed, inspected and approved by the Town Superintendent
of Highways.