3.2 Water Quantity
- Drainage is conveyed through the
subwatershed through several streams and channels as well as storm sewer
and overland flow. The HHPLS
identified a few locations that are predicted to overtop during the 100
year event, as well as others with a minimal amount of freeboard. More detail is available in the HHPLS.
- Development is predicted to increase the
volume of stormwater runoff from the subwatershed, conveying greater
nutrient and sediment loads to Lake
- The HHPLS identified several locations
where for both existing and future conditions higher velocities than
desired may result in erosive velocities at outlets or culverts. These include several road and railroad
crossings. Erosion control or
energy dissipation measures may be required in those locations.
- Several landlocked basins are present
in the subwatershed. Within these
landlocked basins, any future development or redevelopment should minimize
creation of new stormwater volumes.
Outletting will generally be discouraged unless there is a
demonstrated threat to property structures or public safety.