Seattle's Tim Croll Joins HDR as Solid Waste Planner

Tim Croll has joined HDR as a senior solid waste planner. He brings 23 years of solid waste experience working for the city of Seattle, considered one of the best systems in North America, where he transformed the way the city processes waste. Croll will be based in the firm’s Seattle, Wash. office. 

Under Croll’s leadership, the city’s recycling rate increased by 95 percent, growing from 24.8 percent in 1987 to 58 percent in 2015. This shift was largely due to his holistic understanding of solid waste including transfer station operations, collection technologies, recycling, sorting and organics processing industry best practices, and contracting techniques. As a result of his team’s efforts, The Ford Foundation and Harvard University’s John F. Kennedy School of Government recognized Seattle Solid Waste Utility’s recycling program with an award for innovation in state and local government.

Croll holds a bachelor of science degree in geology and mineralogy from The Ohio State University, and a masters of science in geological sciences from the University of Washington. 

About HDR

HDR has partnered with clients to shape communities and push the boundaries of what's possible since 1917. We specialize in engineering, architecture, environmental and construction services. With nearly 10,000 employees in more than 225 locations around the world, we think global and act local.