Mill and Cascade Creeks (Pennsylvania)
Project Status: modeling
Mill and Cascade creeks are the two largest tributaries to Lake Erie's
Presque Isle Bay at Erie, Pennsylvania. Their total watershed area is
approximately 25 square miles, draining portions of Erie County.
Land use within these watersheds
is approximately 80% urban, with a trend toward further development.
As with other areas of rapid urban development, water runoff contributes
heavily to waterway pollution. The Bay has suffered from accumulation
and degradation of wastes discharged by both point and non-point sources.
Gannon University completed a SWAT hydrologic model to examine
flooding issues for Cascade Creek. The Tributary Modeling Program was
able to use this work as a starting point to expand to sediment modeling
for both Cascade and Mill creeks. BASINS modeling was used to
develop a GIS database and update land use/land cover data. SWAT
and BASINS modeling were then used to evaluate sub-watershed
sediment transport and yield. SWAT predicted the effects of the
gradual conversion of land use from undeveloped land to a highly urban
Modeling was completed in August of 2004. A training workshop for state and
local partners took place in September of 2004.
Use and Applications
Erie County Planning GIS staff will provide support and training to
peripheral users such as the Port Authority, the Erie County Department
of Health, Pennsylvania Department of Environmental Protection (DEP),
the Erie Sewer Authority and various watershed associations. The Erie
County Soil & Water District will use this model to assess best
management practices and their effects on erosion in the watershed.
The Pennsylvania DEP will use the model to assess the water quality
parameters of the creeks and the health of the basin to facilitate the
delisting of the Presque Isle Bay Area of Concern (AOC) by the US Environmental
Erie County: Department
of Planning, Health
Isle Bay Remedial Action Plan (RAP) Committee
of Environmental Protection (PA DEP), Bureau
of Watershed Mgmt., Office of Pollution Prevention, Coastal
U.S. Environmental Protection
more informationor to obtain digital data for advanced modeling
USACE, Buffalo District
1776 Niagara Street
Buffalo, NY 14207
Phone: (716) 879-4446