2396                            County Local Laws

SOILS AND TERRAIN AND DEGREE OF MAINTENANCE.
STEPS NECESSARY TO ESTABLISH PERMANENT VEGETA-
TIVE STABILIZATION ARE AS FOLLOWS:

(1)    INSTALL REQUIRED EROSION CONTROL PRAC-
TICES.

(2)    APPLY REQUIRED LIME AND FERTILIZER.

(3)    PREPARE ADEQUATE SEEDBED.

(4)    SEED OR SOD.

(5)    APPLY MULCH AND ANCHOR FOR SEED AND
ANCHOR FOR SOD.

Section 12-2022. STRUCTURAL EROSION AND SEDIMENT
CONTROL MEASURES.

Structural erosion and sediment control measures shall include,
but not be limited to the following:

(1)    Diversions, the number, physical extent and spacing of
which shall be dependent upon the land slope, soil, and runoff. Surface
runoff shall be collected and conveyed laterally along the diversion at
non-erosive and non-scouring velocities, and discharged into a pro-
tected area or outlet channel.

(2)    Bench terraces.

(3)    Outlet channels for the disposal of storm runoff from diver-
sions, bench terraces and other structures. The design thereof shall
be based upon the runoff from predicted storm frequency and shall
include the vegetative or structural measures required to protect the
channel from scour and erosion.

(4)    Waterway stabilization structures such as drop structures,
grade stabilization structures and channel liners shall be utilized to
dissipate the energy of flowing water by holding the waterway slopes
and velocities within non-scouring limits.

(5)    Channel bank stabilization, (such as riprap, rock cribs,
gabions, groins jetties, fencing and piling) to provide a barrier
that will withstand the erosive forces exerted by flowing water, or
to create a bank roughness that will reduce the erosive power by
dissipating energy of the water as it moves along the bank line.

(6)    Stream channel improvement to straighten, realign, or con-
struct a new channel to designed cross-section and grade as neces-
sary.

(7)    Sediment basins for ARE temporary earth fill type dams
constructed downstream from a development area which regulates
runoff and traps sediment. Sediment shall be removed mechanically
as the basin behind the dam becomes filled, and the structure may be
removed once stability is reach REACHED in the development area.

(8)    Installation and maintenance of specified erosion and sedi-
ment control measures in accordance with the provisions of Section
12-2018 of this Subtitle.