a. Waterway must be 20 years old
b. Capacity is diminished such that runoff frequently flows along
the outside edge(s) of waterway.
c. Erosion of the waterway bottom or sides is such that gullying
is occuring to the extent that vegetation cannot be effectively
established.
d. An adequate, stable outlet is available for the waterway.
e. Reasonable efforts have been made to maintain the waterway.
Restoration:
Restoration may include:
a. Reshaping the waterway cross section.
b. Revegetating the waterway, including any berm and inter-terrace
strip areas.
c. Respreading topsoil over part or the entire waterway.
d. Installing subsurface drains where necessary to stabilize the
waterway and promote the establishment and maintainenance
of vegetation.
e. Conversion of gradient terraces to uderground tile outlet terraces
is not eligible for Terrace Restoration assistance if a suitable
or restorable grassed waterway outlet is available.
