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OVERLAY ZONE BOUNDARY
The fairest and most effective way to protect coastal resources and sensitive
features is to first take a scientific inventory and then map them. The
result is a resource inventory map local zoning officials can use to quickly
and easily identify steep slopes, sand dune crests, wetland areas, forested
vegetation, and critical habitat.
Communities that use resource inventories to draw their overlay zone boundaries
are better off than those that simply draw their boundaries a fixed distance
back from the shoreline. The resource-based variable boundary method:
Leaves no fragile resources unprotected. In comparison, the fixed-distance
boundary can skip vulnerable areas of the shoreline that might sit farther
back.
Leaves landowners in less sensitive areas alone. The fixed-distance
boundary, on the other hand, can put property owners on less sensitive
land through unnecessary regulatory hoops.
Simplifies the site plan process for property owners. Instead of
having to identify habitat, slopes, wetlands, and other resources, they
can use information the local government provides with the resource inventory.
Helps local governments enforce a shoreline protection overlay
without hiring full-time resource professionals. Zoning officials must
be comfortable with the information in the resource inventory. But they
do not have to be certified biologists and hydrologists if the community
has already used those specialists to inventory and map coastal resources.
The cost of conducting a shoreline resource inventory depends on the amount
of information local governments already have about their land, vegetation,
and wildlife. Many townships and counties have maps of some resources
and have taken stock of various natural assets. Regional governmental
organizations and state agencies also have such maps and data. State funding
is available for work a community must do on its own. (See Coastal
Cost Share)

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A fixed-distance
boundary is an arbitrary line that may or may not include
all of the
sensitive features along the coastline. On this map, for instance,
the fixed-distance boundary fails to protect the coastal wetlands
and high bluffs along the shore.
A resource-based variable boundary is a line based
on a scientific inventory of natural features, such as wetlands,
dunes, bluffs, coastal marshes etc. As this map shows, unique
features like the steep bluff and the coastal wetland area
are included in the shoreline
protection zone boundary.
(See Map below)
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