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(3)
K-3
Illustrated by
Katy Wu.
This engaging nonfiction picture book details the SR 99 Tunnel project in Seattle, focusing on the journey of Bertha, a massive tunnel-boring machine, as she digs through the city. With a compelling text and mid-century-modern-style illustrations, the book illuminates the complex engineering behind the project and Bertha’s impressive feats. Back matter packed with fascinating facts and additional resources rounds off this title that’s sure to please young construction enthusiasts.