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Overhead view of the quarry. Thornton Quarry is one of the largest aggregate quarries in the world, located in Thornton, Illinois just south of Chicago. The quarry is 1.5 miles (2.4 km) long, 0.5 miles (0.80 km) wide, and 450 feet (140 m) deep at its deepest point. Gallagher Asphalt Corporation has been operating on the grounds of the quarry ...
Thornton Quarry, just south of Chicago, Illinois. One of the largest aggregate quarries in the world, 1.5 miles (2.4 km) long, 0.5 miles wide, and up to 450 feet deep, site of a Silurian reef. Quarried since 1836. The quarry also acts as an emergency flood control reservoir as part of Chicago Deep Tunnel project.
Aerial view of Phase II of the McCook Reservoir under construction in 2023. The Tunnel and Reservoir Plan (abbreviated TARP and more commonly known as the Deep Tunnel Project or the Chicago Deep Tunnel) is a large civil engineering project that aims to reduce flooding in the metropolitan Chicago area, and to reduce the harmful effects of flushing raw sewage into Lake Michigan by diverting ...
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The excavations and tunnels used to undermine Hallet's Point Removal of the Hallett's Point reef began in August 1869; the reef was an irregular semi- ellipse about 770 by 300 feet (235 by 91 m). Producing eddies on both sides (influenced by tidal currents), it was a danger to shipping.
When Nickel arrived at the Shedd Aquarium in 2003, the green sea turtle had survived a crack in her shell from colliding with a boat. She also had a coin lodged in her esophagus — hence her name.
Camp Bay is home to what is claimed to be Europe's first artificial reef. The reef was created by activists who were concerned at the scarcity of marine life. The early experiments of floating out and sinking derelict cars merely demonstrated the power of local storms and currents. A second attempt used ships that were no longer required.
The Thornton Tunnel is a freight railway tunnel in Burnaby, British Columbia, running under the Willingdon Heights and Vancouver Heights neighbourhoods. [1] The tunnel is named after Sir Henry Worth Thornton , who was an early president of Canadian National Railway (CN). [ 2 ]