Final Report Historical Structures Assessment Report for the Muddy ...

Historic Structures Assessment Report for the Muddy Run Pumped Storage Facility Project Relicensing Application
Lancaster and York Counties, Pennsylvania
Although it has since been eclipsed in size by other projects, at its completion, the Muddy Run Facility
was the largest pumped-storage facility in the world. The electrical machinery was designed by the noted
engineer Eugene C. Whitney of Westinghouse Electric Company, although at this time it is not known if
the design was unique to the facility or how this facility stands in relationship to Mr. Whitney’s career.
These two factors suggest that the facility needs further research in order to assess whether the facility is
of exceptional importance and to assess its eligibility under National Register Criteria A (energy
production) and C (engineering), Criteria Consideration G, which recognizes significant architectural
resources less than 50 years old. In accordance with the comments of the PHMC, TRC recommends
further research and field survey to complete the PHMC Historic Structures Resource (HSR) form for the
Muddy Run facility and to evaluate its eligibility for the NRHP.
Figure 4-6. View of Muddy Run Reservoir, looking east. (Source: TRC 2010)
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