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History
of the waterway
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| By:
MICHELLE MOWAD |
November
30, 2002 |
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Part
one in a three-part series
The journey from the beautiful, hidden Schuylkill River, home
of 2,000 Lenni Lenape Indians, to booming industrial towns
holds the answer to the river's near demise and neglect.
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The
changes along this natural resource have been immense during
the past 300 years.
The Schuylkill Watershed Conservation Plan, which is a
partnership to develop a conservation plan for the entire
watershed, sites that prior to colonial settlement,
Pennsylvania was 97 to 98 percent forested land, compared to
stark statistics of approximately 30 percent in 1990 for
Montgomery County.
Early settlers relied on agriculture, and used the Schuylkill
River network to transport crops to larger markets downstream.
The river remained docile for many years.
However, the vast natural resources in the watershed,
including iron ore, hardwood and river power soon lead to its
growth.
With the discovery of coal sources in the northern headwaters,
the Schuylkill River became a primary mode of transportation
with the completion of the Schuylkill Navigation System, a
system of interconnecting locks and dams completed in 1824.
The coal industry that built up the Schuylkill River canal
system was the same industry that destroyed the water quality,
according to the Schuylkill River Desilting Project final
report.
For many years, anthracite coal was cleaned by a process that
resulted in the production of thousands of tons of very fine
sized coal particles called culm. Culm, which was considered a
waste byproduct, was disposed of by water carrying it to the
nearest tributary and ultimately to the main stem of the
Schuylkill River.
The culm gradually moved downstream choking the Schuylkill's
main channel, building up behind dams and filling the canals,
according to the engineers of the Schuylkill River Desilting
Project study from 1951.
The problem of maintaining sufficient water for navigation
became costly due to the deposits.
Meanwhile, the contribution of mining wastes continued at an
increasing rate until more than 3 million tons per year were
being dumped into the river.
In 1927, the Army Corps of Engineers estimated that the
accumulation of culm deposits in the river from its headwaters
near Tamaqua to Fairmount Dam totaled 38-million tons.
Furthermore, it has even been reported that culm was found in
the Delaware River 31 miles downstream and 10 miles upstream
from the mouth of the Schuylkill verifying the power of the
river to carry waste into other watersheds.
These deposits raised the bed of the river, and subsequently,
the flood plains.
Yet traffic increased year by year, until the advent of the
railroads, which offered a less expensive, more timely
shipping method.
By the 1940's, steps toward river renewal were in full swing.
Legislation was passed to reduce pollution into the river and
the U.S. Army Corps of Engineers commenced a study finding it
necessary to dredge the river.
The Schuylkill River Desilting Project was instituted in 1945
to correct conditions, which had gradually become intolerable
over the years.
Completed in 1954, the desilting project incorporated dredging
of the clogged river with the planning and construction of
de-silting basins to abate the impacts of coal mining upstream
from Fairmount Dam in Philadelphia to Norristown.
The project was to remove and dispose of the silt deposits,
which accumulated in the channel and on the banks of the river
from its headwaters to the Norristown Dam.
The project, which consisted of the construction of three
desilting basins, seven dams and 26 impounding basins for
disposal of dredged materials, cost approximately $25 million,
almost twice the anticipated cost.
And according to the U.S. Army Corps of Engineers, if similar
construction techniques were employed today, the project would
come close to $475 million.
The Schuylkill Watershed Conservation Plan states that the
outcome of these efforts, along with the river's natural
abilities to cleanse itself over time, is a river network on
the rebound.
And time would be able to heal, if there were not more
variables impacting the water quality.
Contributing to water pollution
Coal silt was not the only pollutant that added to the
negative connotation commonly associated with the river.
In the past, many of the county's 16 municipalities that
juxtapose the river drained sewage and waste into the river on
a daily basis.
The borough of Norristown had a population of 14,500 in 1884
and drained foul water from an oil factory, oil refineries,
slaughterhouses, woolen mills, iron factories and breweries.
A survey taken that same year called the Stony Creek the most
grossly polluted tributary of the entire river, receiving
hospital drainage and other material.
To this day, the Philadelphia Water Department names the Stony
Creek as one of its ten priority streams in the county to
monitor.
As population grew, wooded areas were stripped and converted
into agricultural land and urban areas.
Urban development has reduced the percentage of permeable
surface resulting in increased storm-water runoff, stream
flows and velocities.
Agricultural storm-water runoff included sediment and high
concentrations of nutrients as well as herbicides and
pesticides.
Powerful storm-water flows erode stream banks, cause sediment
transfer that disrupt aquatic habitats and result in silt
build-ups behind dams.
Tomorrow: The perception of the Schuylkill River
Michelle Mowad can be reached at mmowad@timesherlad.com or
610-272-2501, ext. 205.
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| ©The
Times Herald 2002 |
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