Explanation of drainage easements as follows:
"The drainage easements (or the drainage discharge points) shown
hereon established the perpetual right to discharge storm water runoff
from the highway and from the surrounding area onto and over the effected
premises by means of pipes, culverts, or ditches, or a combination
thereof, together with the right of the holder of fee to the highway,
or his authorized representatives, to enter said premises for purposes
of making such installations and doing such maintenance work as said
holder of fee title may deem necessary to adequately drain the highway
and surrounding area."