TABLE OF CONTENTS CHAPTER 1 Going Underground 5 CHAPTER 2 Tunnel Construction 11 CHAPTER 3 The Chunnel 19 THAT'S AWESOME The Seikan Tunnel 22 CHAPTER 4 Build a Tunnel 25 Focus on Building Tunnels 30 Glossary 31 To Learn More 32 Index 32
CHAPTER 1 GOING UNDERGROUND 5 Anna smiled at her brother in the back seat Their car was about to travel through the Laerdal Tunnel in Norway It stretches 15 2 miles 24 5 km The drive from one side to the other takes more than 20 minutes Engineers knew such a long drive in a dark tunnel could make people feel claustrophobic or tired The Laerdal Tunnel links the cities of Laerdal and Aurland in Norway
