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From carriages to cranes: Washington's 25 oldest construction firms

100 years ago, the Denny Regrade was still a hill, streetcars shuttled Seattle's 80,000 residents along its streets and Seattle's first steel-framed skyscraper - The Alaska Building - is still four year's away from being built.

The past 100 years has changed the landscape of Washington State immesurably, and the construction companies profiled here all played a significant role in the state's development. Listed are the 25 oldest construction companies in Washington State.

Click on one of the company names listed to find out more the companies beginnings and the projects they built over the years.