Puget Sound Bridge and Dredging Company Puget Sound Bridge and Dredging Company Puget Sound Bridge and Dredging Company was a major shipbuilding and construction company, located in Seattle, Washington. The firm was established in 1898 on Elliott Bay in Puget Sound. The company was engaged in construction projects around the United States and built ships for the U.S. Navy at its shipyard on Harbor Island on Puget Sound during and after World War II. In 1959 the firm was purchased by Lockheed and became the Lockheed Shipbuilding and Construction Company. The shipyard was permanently closed in 1987. During its 61-year history as Puget Sound Bridge and
Puget Sound Navigation Company Puget Sound Navigation Company The Puget Sound Navigation Company (PSNC) was founded by Charles E. Peabody in 1898. It operated a fleet of steamboats and ferries on Puget Sound in Washington and the Georgia Strait in British Columbia. Known colloquially as the Black Ball Line, the PSNC achieved a "virtual monopoly" on cross-sound traffic in the 1930s and competed with the Canadian Pacific Railway's steamships on several routes. Before 1927, when the company was controlled by Joshua Green, the house flag consisted of a design by Mrs. Green, a red star on a white diamond on a blue background. After