View XML QR Code

Seattle City Light Load and Flow Data, 1905-1995

Overview of the Collection

Creator
Seattle City Light
Title
Seattle City Light Load and Flow Data
Dates
1905-1995 (inclusive)
Quantity
10.4 cubic feet, (11 boxes)
Collection Number
1206-11
Summary
Data from City Light hydroelectric projects.
Repository
Seattle Municipal Archives
Seattle Municipal Archives
Office of the City Clerk
City of Seattle
PO Box 94728
98124-4728
Seattle, WA
Telephone: 2062337807
Fax: 2063869025
archives@seattle.gov
Access Restrictions

Records are open to the public.

Languages
English
Sponsor
Funding for processing this record series was provided through a grant from the National Historical Publications and Records Commission.
Return to Top

Historical Note

City Light provides electricity and electrical and conservation services to its public and private customers. It is the largest public utility in the Pacific Northwest. Public responsibility for electrical energy dates to 1890 with creation of the Department of Lighting and Water Works. In 1902, Seattle voters passed a bond issue to develop hydroelectric power on the Cedar River under the administration of the Water Department. Electricity from this development began to serve Seattle in 1905. A City Charter amendment in 1910 created the Lighting Department. Under the leadership of Superintendent James D. Ross, the department developed the Skagit River hydroelectric project which began supplying power in 1924. Both public and private power was supplied to Seattle until 1951 when the City purchased the private electrical power supply operations, making the Lighting Department the sole supplier. The Boundary Project in northeastern Washington began operations in 1967 and supplied over half of City Light's power generation. By the early 21st century, approximately ten percent of City Light's income came from the sale of surplus energy to customers in the Northwest and Southwest with the remainder of City Light's financial support coming from customer revenue. The current name of the agency was adopted in 1978 when the Department was reorganized.

Return to Top

Content Description

Records of the Power Management Branch, consisting of data on stream discharge and flows, lake and reservoir elevations, energy generation, load estimates and forecasts, and power studies on system capability. Data pertains to the Skagit Basin, Cedar River, Boundary Dam and other sources.

Flow data for Boundary Dam may also be found in Boundary Dam Project Records, series 1206-07.

Return to Top

Use of the Collection

Preferred Citation

[Item and date], [Seattle City Light Load and Flow Data , Record Series 1206-11. Box [number], Folder [number]. Seattle Municipal Archives.

Return to Top

Administrative Information

Return to Top

Detailed Description of the Collection

The following section contains a detailed listing of the materials in the collection.

Names and SubjectsReturn to Top

Subject Terms

  • Cedar River (King County, Wash.)
  • Electric power--Washington--Seattle
  • Pend Oreille River
  • Reservoirs--Washington (State)
  • Rivers--Washington (State)
  • Ross Dam (Wash.)
  • Skagit River (B.C. and Wash.)
  • Skagit River Hydroelectric Project
  • Streamflow--Washington (State)

Corporate Names

  • Seattle City Light
  • Seattle (Wash.). Lighting Dept.
  • Tacoma (Wash.). Dept. of Public Utilities

Geographical Names

  • Seattle (Wash.)

Finding aid prepared by Janet Ness
2010

CC Attribution
This work is licensed under a Creative Commons Attribution 4.0 International License.

About Creative Commons Licenses in Archives West

Loading...
Loading...