§ 27-124.01. One hundred (100) year floodplain.

(a)

The one hundred (100) year floodplain is that which is delineated on a County comprehensive watershed management study approved by the County Stormwater Management Task Force. Where specific flood protection measures recommended in adopted County Watershed Plans are included in an adopted County Capital Improvements Program (CIP) for planning, design, and construction, the floodplain limits shall be amended to reflect these measures. At a minimum, floodplain limits are those which are delineated or revised by the Federal Emergency Management Agency.

(b)

In areas where there are no available studies, or where existing studies have been determined by the Department of the Environment to be inapplicable, a new study of the area shall be required. All of these studies shall be performed to the satisfaction of the Department of the Environment, taking into consideration:

(1)

The drainage basin system, as existing or as included in an adopted County CIP for planning, design, and construction; and

(2)

Future land use based on existing zoning where a Sectional Map Amendment has occurred, or based on the land uses recommended by an approved Master Plan where a Sectional Map Amendment has not yet occurred.

(c)

For the purpose of computing net tract area, cluster open space, and net lot area, the floodplain associated with watercourses having less than fifty (50) acres of watershed upstream may be excluded from the floodplain area computation. The exclusion shall not modify the limits of permissible filling or other floodplain alterations, as may be determined pursuant to provisions of Subtitle 4, "Building," or Subtitle 23, "Roads and Sidewalks," of this Code.

(d)

The provisions of this Subtitle are supplemented by the provisions of Division 2 of Subtitle 4, "Building," of this Code, entitled "Construction or Changes in Floodplain Areas."

(CB-63-1987; CB-32-2014)