The establishment and control of proper vegetation are an
important part of dam maintenance. Properly maintained
vegetation can help prevent erosion of embankment and earth
channel surfaces, and aid in the control of groundhogs and
muskrats. The uncontrolled growth of vegetation can damage
embankments and concrete structures and make close inspection
difficult. Grass vegetation is an effective and inexpensive way
to prevent erosion of embankment surfaces. If properly
maintained, it also enhances the appearance of the dam and
provides a surface that can be easily inspected. Roots and stems
tend to trap fine sand and soil particles, forming an erosion-
resistant layer once the plants are well established. Grass
vegetation may not be effective in areas of concentrated runoff,
such as at the contact of the embankment and abutments, or in
areas subjected to wave action. Bare areas on an embankment are
void of protective cover (e.g. grass, asphalt, riprap etc.).
They are more susceptible to erosion which can lead to