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Conowingo Power House at Night
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HE Hydro-Electric Plant on the Susque-
hanna River at Conowingo, Maryland,
which is part of the Philadelphia Electric
Company System, is one of the largest
water-power developments in the United
States. The dam, almost a mile across and
surmounted by a highway bridge 20 feet
wide, forms a lake fourteen miles long. The
initial installation is 378,000 H. P. which will
eventually be increased to 594,000 H. P.
A 220,000 volt transmission line carries
current to Philadelphia. Work was started
March 8,1926, and the first units were put
into operation March 1, 1928.
10,
Produced by Ruth Murray Miller, Philadelphia, Pa.
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