Hydroelectric Power Collection, 1907-1967

Call number:  MG-84

1 box     12 folders     .5 cubic ft.

Repository:  LancasterHistory.org (Lancaster, Pa.)

Shelving Location:  Archives South, Side 3

Description:  Contains pamphlets, booklets, and annual reports from various water and power companies on the Susquehanna River. They include information about dams, hydroelectric projects, and how electricity is generated; maps and history of the region; and pictures of the river and hydroelectric stations.

Creators:  LancasterHistory.org (Lancaster, Pa.); Lancaster County Historical Society, Lancaster (Pa.)

Conditions for Access:  No restrictions.

Conditions Governing Reproductions:  Collection may not be photocopied. Please contact Research Staff or Archives Staff with questions.

Language:  English

Source of Acquisition:  Items were collected by LancasterHistory.org and the Lancaster County Historical Society unless otherwise noted.


Folder  1  Electric Power from the Susquehanna River. Published by McCall Ferry Power Company. Bulletin no. 2. Photographs, statistics, and text. January 1907.

Folder 2  Prospectus of the Conewago Water & Power Company. No date.


Folder 3  Pennsylvania Power & Light Company

“Self-Guided Driving Tour of Pennsylvania Power & Light Company’s Historic Holtwood & Lake Aldred District.” Booklet listing directions and the history of nine areas along the Susquehanna River, in Lancaster County and York County, which are owned and managed by Pennsylvania Power & Light Co. No date.

“The Beautiful Susquehanna . . . for Family Fun.” Pamphlet describing points of interest and showing hydroelectric stations. No date.

“Summary of Report Filed with the Federal Power Commission: Holtwood Hydroelectric Project.” [1966].

“Area Development Reporter.” Articles on Armstrong plant at Marietta Depot, the      Fuller Company in Manheim, hotel and theatre construction in Lancaster, Visitor Information Center, and Holtwood Dam. December 1967.


Folder 4  Safe Harbor Hydroelectric Development

Insert 1  Souvenir pamphlet published by Safe Harbor Water Power Corporation. Includes facts about Safe Harbor, history, information about the dam and how electricity is generated, and a map of the region showing points of interest with notes and historical information. No date.

Insert 2  “General Information” with statistics and drawing of the powerhouse. (2 copies) No date.

Insert 3  “The Hydroelectric Development at Safe Harbor.” Pamphlet published by Safe Harbor Water Power Corporation. April 1935.

Insert 4  Gift of the late Amer and Emma Kendig via Rick Kendig, August 2008.

“Engineering Data regarding the Safe Harbor Hydro-electric Project, April 1931.” Shows cross-section of power house and general layout of structures. Data includes general and hydrographic, construction, hydraulic design, and electrical equipment. 1931.

“Safe Harbor: The New Hydro-electric Development in the Susquehanna Basin.” Narrative, engineering data, and information from Pennsylvania Water and Power Company and Consolidated Gas Electric Light & Power Company of Baltimore. May 1931.

Insert 5  Certificates of employee recognition for Edward H. Rutter. 1956, 1961, 1974. Gift of Robert Marion, 2007. 

Insert 6  Gift of Robert Marion, 2007.

Invitation to the 50th Anniversary Banquet Celebration for Safe Harbor Water Power Corp. to be held at Historic Strasburg Inn. 7 December 1981.

“Safe Harbor Dam is 50 Years Old Today.” No date.


 Folder 5  Safe Harbor Hydroelectric Development

The Safe Harbor Hydroelectric Development: A Digest of the Solutions of Its Engineering Problems. [1936].

The Safe Harbor Hydroelectric Development. Prepared for the 1941 Spring Meeting of the American Society of Civil Engineers, Baltimore, Maryland. 23-25 April 1941.


Folder 6  Pennsylvania Water & Power Company

“Man Defies the Lightning,” The Sunday Sun, Baltimore, 15 October 1939.  Reprinted by Pennsylvania Water & Power Co.

Hydroelectric Power Development of the Susquehanna River. Published by Pennsylvania Water & Power Co., Holtwood, PA. Includes visitor information; facts; maps; photographs; and information about hydroelectric development, how electricity is generated, and the history of the region. 1949.

Insert 1  Blueprint of the substation yard, Conestoga Substation. 1937-1938.


Folder 7  Pennsylvania Water & Power Company

“Visitors are Welcome at Holtwood & Safe Harbor, PA: Picturesque Scenery in Historic Country.” Pamphlet with map of the Susquehanna River from Columbia, PA to the Chesapeake Bay and describing points of interest. [1947].

“Visitors are Welcome at Holtwood & Safe Harbor, PA.” Pamphlet with map of the Susquehanna River from Columbia, PA to the Chesapeake Bay and describing points of interest. [1951].


Folder 8  Growth of an Integrated System of Hydro and Steam Power Supply. Pennsylvania Water & Power Company Yearbook. 1940.

Folder 9  Annual Reports of the Pennsylvania Water & Power Co. 1930, 1932, 1933. Transferred from the library, [1999].

Folder 10  Ice and Floods: Holtwood and Safe Harbor, March, 1936. Pennsylvania Water & Power Company and Safe Harbor Water Power Corporation. 1936. (placed in manuscript group to protect the casing)


Folder 11  Publications on Turbines and Thrust Bearings

Power by Smith: Smith Kaplan Turbines. Published by S. Morgan Smith Company, York, Pennsylvania. Bulletin No. 139. 1938.

G-E Thrust Bearings. Published by General Electric, Schenectady, New York. GEA-2251. No date.


Folder 12  Conowingo Hydroelectric Development

Insert 1  Hydrographs—Susquehanna River, 1891-1925. For the Conowingo Project of The Susquehanna Power Co. and Philadelphia Electric Power Company. Prepared by Stone & Webster, Inc. 1926.

Insert 2  “Conowingo Hydro-electric Development.” Article was removed from a book and is incomplete. No date.