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Dashields Locks and Dam
100 Dashields Lock Road
Coraopolis, PA 15108-5417
724-457-8430
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Dashields Locks and Dam is one of six major Pittsburgh District river
facilities on the Ohio River. It is the only fixed crest type dam
still in service on the Ohio River. This facility maintains the
navigation pool for 7 miles from Glenwillard, PA, upriver to the
Emsworth Locks and Dam near Pittsburgh.
Location
Dashields Lock lies on the left descending bank a few miles upriver
from Aliquippa, PA The project is off Route 51 near the small town
of Glenwillard and across the river from the nearby residential
communities of Edgeworth and Sewickley.
History
Dashields was constructed from 1927-29 and opened for navigation
in August 1929. It eliminated Lock and Dam 3, an old style wicket
dam, which was built by the Corps from 1899-1907.
The structure was named after David Shields, a
member of a prominent local family and long-time postmaster of Old
Sewickley Bottom in the 1800s.
Project
Information
Dashields Locks and Dam consists of two lock chambers and a fixed
crest dam, one of the major types in use. This dam is basically
a concrete wall across the river which keeps the channel deep enough
for navigation and for residential and industrial water supply users.
Dashields averages about 550 commercial lockages
every month, plus another 200 to 300 lockages of pleasure craft
during the summer months.
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