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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 ...
Chicago Pedway. Coordinates: 41°53′03.2″N 87°37′28.7″W. OpenStreetMap map of the Pedway. Sign of the Chicago Pedway. An underground Pedway tunnel. Inside a Pedway bridge between the Ogilvie Transportation Center and 2 North Riverside Plaza. The Chicago Pedway is a network of tunnels, ground-level concourses and bridges in Chicago ...
As of the end of fiscal year 2008, the center had 1,119 employees, 587 residents and an annual cost per resident of $175,844. [5] The Shapiro Center was generating and submitting to the state treasury, 65% of its total operational costs. There are underground utility tunnels leading from building to building in the facility.
The Chicago Tunnel Company was the builder and operator of a 2 ft (610 mm) narrow-gauge railway freight tunnel network under downtown Chicago, Illinois. This was regulated by the Interstate Commerce Commission as an interurban even though it operated entirely under central Chicago, did not carry passengers, and was entirely underground. [ 1 ]
Between 1892 and 1906, Chicago had three cable car tunnels under the Chicago River. Two were built for pedestrian and horse traffic and later converted, the third was built specially for cable-cars. After cable service ended they would be used by electric streetcars . By 1900, Chicago had a cable-based transit system that carried 80 million ...
According to the United States Census Bureau, the City of Chicago has a total area of 606.1 km 2 (234.0 sq mi). 588.3 km 2 (227.1 sq mi) of it is land and 17.8 square kilometres (6.9 sq mi) of it is water. The total area is 2.94% water. The city has been built on relatively flat land, the average height of land is 579 feet (176 m) above sea level.
534 ft (162.76 m) (after lowering) The Washington Street Tunnel was the first traffic tunnel under the Chicago River. J.L. Lake was awarded the contract to construct the tunnel in July 1867 and its construction was completed January 1, 1869. This tunnel was 1605 feet long, from Franklin Street west to Clinton Street, and cost $517,000.
During the construction, crews began from the intake location and the shore, tunneling in two shifts a day. Clay and earth were drawn away by mule-drawn railcars. Masons lined the five-foot-diameter tunnel with two layers of brick. The lake and shore crews met in November 1866, less than seven inches out of alignment. A second tunnel was added ...