Bound To Stay Bound

		Big Bertha : how a massive tunnel boring machine dug a highway under Seattle  Author: Abler, Amanda  Publisher:  Sasquatch Books (2024)  Dewey: 624.1  Classification: Nonfiction  Physical Description: [48] p., col. ill., 25 cm  BTSB No: 040286  ISBN: 9781632173065  Ages: 7-10  Grades: 2-5  Subjects:  Construction equipment  Roads -- Design and construction  Tunneling  Seattle (Wash.)
	Price: $14.24

Summary:
A nonfiction picture book about the drill that made the longest and widest tunnel in North America underneath Seattle.