Archives West Finding Aid
Table of Contents
Engineering Reports, 1936-1967
Overview of the Collection
- Creator
- Seattle (Wash.). Lighting Dept.; Seattle City Light; Strandberg, H.V.
- Title
- Engineering Reports
- Dates
- 1936-1967 (inclusive)19361967
- Quantity
- 0.8 cubic feet, (2 boxes)
- Collection Number
- 1209-03
- Summary
- Engineering reports regarding power transmission and distribution.
- 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
Historical NoteReturn to Top
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 back to 1890 with creation of the Department of Lighting and Water Works. The formulation of this public utility stemmed from fear of monopolization by private companies and was reinforced by the inadequacy of those companies during the Great Fire of 1889. Unable to gain access to private water, much of the business district was burned to the ground. Citizens responded eagerly to the idea of publicly owned water and electricity, which was later encouraged as part of President Roosevelt's New Deal in the 1930s.
In 1902, Seattle voters passed a bond issue to develop hydroelectric power on the Cedar River under the administration of the Water Department. This was the nation's first municipally owned hydroelectric project. Electricity from this development began to serve customers in Seattle in 1905. A City Charter amendment in 1910 created the Lighting Department, making it a full member of the City's Board of Public Works. Under the leadership of Superintendent James D. Ross, the department developed the Skagit River hydroelectric project which began supplying power in 1924 with the completion of the Gorge Dam.
Both public and private power was supplied to Seattle until 1951 when the City purchased the local private electrical power company, the Puget Sound Power and Light Company, 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.
The current name of the agency was adopted in 1978 when the department was reorganized. As a municipally owned public power system, Seattle City Light is governed by elected Seattle officials. Administrative authority rests with the Superintendent and an executive team that includes the department's Chief of Staff, Service and Energy Delivery Officer, Human Resources Officer, Power Supply and Environmental Affairs Officer, and Chief Financial Officer. City Light is responsible for electrical service and streetlight service, streetlight problems, and also conservation, both residential and commercial/industrial.
City Light provides low-cost, reliable, and environmentally responsible electric power to approximately 395,000 customers in Seattle and neighboring areas, including Burien, Lake Forest Park, Normandy Park, Renton, SeaTac, Shoreline, Tukwila, and unincorporated King County. It is the ninth-largest public power system in the United States and has the lowest rates among comparably sized cities in the United States.
Content DescriptionReturn to Top
Documents generated for the City of Seattle Lighting Department regarding power transmission, distribution, load forecasting, cost savings, and testing in the Seattle and Skagit areas. Includes reports, charts, calculations, drawings, blueprints, and photographs.
Use of the CollectionReturn to Top
Preferred Citation
[Item and date], Engineering Reports, Record Series 1209-03. Box [number], Folder [number]. Seattle Municipal Archives.
Administrative InformationReturn to Top
Detailed Description of the CollectionReturn to Top
Container(s) | Description | Dates | |
---|---|---|---|
Box | Folder | ||
1 | 1 | Skagit Operating Conditions | undated |
1 | 2 | The Cross Catenary Type of Construction as Applied to Skagit Transmission Line No. 2 | 1936-1937 |
1 | 3 | Skagit Transmission Lines #2: Type A and Type B Tower Tests at Pittsburgh | 1937 |
1 | 4 | West Michigan St. Crossing Towers | 1946-1958 |
1 | 5 | 3rd Ave. NW Crossing Towers | 1938-1957 |
1 | 6 | 6th NE (Lake Union) | 1938-1951 |
1 | 7 | West Waterway Crossing | 1951-1968 |
1 | 8 | Special Tower, D.C. Transmission | 1938 |
1 | 9 | Steel Towers for Skagit Transmission Line No. 2 | 1951 |
1 | 10 | Report and Estimate of Cost of Transmission Lines and Substations to Feed Bellingham, Sedro Woolley, Burlington, Everett, Mt. Vernon, and Snohomish From Skagit Project | 1938 |
1 | 11 | Ground Resistance, Skagit Transmission Line No. 2 | 1939 |
1 | 12 | Relocation of Newhalem-Skagit Crossing of Skagit Transmission Line #2 | 1937 |
1 | 13 | Calculation of Temperature Tension Stringing Charts: Method Used | 1936 |
1 | 14 | Memorandum Report of Inspection of Crossing Towers | 1939 |
1 | 15 | Inspection and Recommendations Relating to the Protection of Diablo Power House from Falling Rock | 1939 |
1 | 16 | Physical and Electrical Characteristics of City of Seattle Lighting Department's Transmission Lines | undated |
1 | 17 | Index of Engineering Department Drawings for Gorge Transmission Line | 1932 |
1 | 18 | Accidental Transmission Line Outages | 1924-1939 |
1 | 19 | Tacoma Tie Line - Estimated Cost to Rebuild For 110-kv Operation | 1940 |
1 | 20 | North End Warehouse - Economics | 1941 |
1 | 21 | Performance of Skagit Generators and Transmission Lines | 1942 |
1 | 22 | An Analysis of Outage Data | 1953 |
1 | 23 | Dielectric Test Ross Generator | 1953 |
1 | 24 | A Study of Load Trend in the Central Business District and Recommendations for Future Supply Facilities | 1953 |
1 | 25 | A Test of the Efficacy of the Phase-Shifting Transformers at Broad Street in Transferring Load Normally Fed From South Substation | 1953 |
1 | 26 | Relative Cost of Aluminum Versus Steel 26 KV Bus Structures at Duwamish Sub | 1953 |
1 | 27 | A Load Forecast for the Seattle Area Based on Population and Use Trends | 1954 |
1 | 28 | A Twenty Year Forecast of Seattle City Light Construction Fund Requirements | 1954 |
2 | 1 | An Economic Study of 13KV Versus 4KV as a Distribution Voltage in the Northern Part of the Underground District | 1954 |
2 | 2 | Reactive Power Requirements of the Seattle System | 1954-1957 |
2 | 3 | A Survey of the Service
Facilities in the Seattle Area Engineering Report #188
ER 188
|
1954 |
2 | 4 | Index Test of Gorge and Diablo Plants | 1943-1944 |
2 | 5 | Transformer Current Interruption By Air-Break Disconnecting Switch | 1955 |
2 | 6 | Fremont Distribution Substation Sound Level and Frequency Tests | 1955 |
2 | 7 | A Fault and Load Distribution Study of the Boeing 13-KV Network | 1955 |
2 | 8 | Canal Substation 55-KV to 13-KV Transformer Capacity | 1955 |
2 | 9 | Domestic Water Heater Study | 1955 |
2 | 10 | Reprocessing Insulating Oils | 1955 |
2 | 11 | Automatic Operation Study of the
Cedar Falls Generating Plant
Engeineering Report No 198 Project No 996 by K E Walters
|
1956 |
2 | 12 | Bushing Testing by the Radio Influence Voltage Method | undated |
2 | 13 | Residential Load Study City of Seattle Department of Lighting | 1954-1955 |
2 | 14 | Preliminary Investigation of the Moving Steel Towers and Power Lines to Clear for the Construction of the 6th Avenue N.E. High-Level Bridge | 1957 |
2 | 15 | Thirty Years Experience with Wood-Pole Transmission-Line Construction | 1954 |
2 | 16 | Study of 26 KV Versus 4 KV Primary Distribution System | 1961 |
2 | 17 | Gound Fault Test Results on Allis Chalmers Oil Circuit Breaker (Type FZO-50-34F) | 1962-1963 |
2 | 18 | Testing of Transformer Cluster Mount Brackets by Contract Construction Division | 1963 |
2 | 19 | An Analysis of the Cooling Air Flow Through a Large Electrical Generator | 1963 |
2 | 20 | History 34.5 KV Oil Circuit Breaker Failures | 1963 |
2 | 21 | Inspection of Portion of Legs of Steel Transmission Towers Below Ground Surface | 1964 |
2 | 22 | Testing of Aluminum Luminaire Support Brackets | 1965 |
2 | 23 | Tests of Joints in Wood Power Poles Cemented with Epoxy Resin Glues | 1967 |
2 | 24 | A Long-Term Load Estimate for the Advance Program | 1956 |
2 | 25 | Test Spraying of Weedecide on Skagit Transmission Line Right of Way | 1946 |
Names and SubjectsReturn to Top
Subject Terms
- Electric utilities--Washington (State)--Seattle
- Electric power distribution--Washington (State)
- Electric power transmission--Washington (State)
Geographical Names
- Seattle (Wash.)
- Skagit County (Wash.)