The total capacity will be 17 billion gallons when complete.Ī combined sewer overflow (CSO) is the discharge of sewage and industrial discharges mixed stormwater directly into a waterway. As of 2020, 109 miles of tunnels are complete as is the Gloria Majewski (formerly O’Hare) Reservoir, the Thornton Reservoir, and Phase I of the McCook Reservoir. Phase II of the McCook Reservoir is scheduled to be completed in 2029. TARP’s primary purpose is to reduce CSOs, basement flooding, and backflows into Lake Michigan by using a combination of tunnels and reservoirs to store combined stormwater and sewage after heavy rainfalls until it can be treated, rather than discharging the polluted mess into local waterways.Īpproved as the regional plan to address these issues in 1972, construction started in 1975 and was scheduled for completion in 1984. Tunnel Component of the Tunnel and Reservoir Plan Proposed by the Metropolitan Sanitary District of. We do not allow shorts, baseball caps, athletic apparel, tank tops, exposed chains or flip flops. The project was begun in 1976 and is scheduled for completion later this year. Location Tunnel Chicago 151 W Kinzie St, Chicago, IL 60654 At Tunnel, we encourage smart, casual-elegant attire.

Washington St.The Tunnel and Reservoir Plan (TARP), also known as 'The Deep Tunnel,' is the Metropolitan Water Reclamation District’s (MWRD) large scale engineering project designed to reduce flooding and combined sewer overflows (CSOs) within the MWRD’s service area including the Chicago River watershed in Cook County, an area that includes Chicago and dozens of other communities. A combined sewer overflow (CSO) is the discharge of sewage and industrial discharges mixed stormwater directly into a waterway. The Tunnel and Reservoir Plan, commonly known as Deep Tunnel, is a project designed to alleviate storm drainage into rivers and lakes in the Chicago Metro area. By 1950 the south approach had been covered, the tunnel and the north approach were filled and covered by 1953. It was in use until November 27, 1939, when it was closed during the construction of the Milwaukee-Lake-Dearborn-Congress subway, the Lake & LaSalle (now Clark & Lake) station of which intersected the tunnel's south ramp under Lake Street. Begun in 1975, and at one time the nation's largest. The deepened tunnel was opened to electric streetcar service on July 21, 1912. Deep Tunnel System, 2003 (Map) The 4 billion Tunnel and Reservoir Plan (TARP), better known as The Deep Tunnel, is the Metropolitan Water Reclamation District of Greater Chicago's answer to water pollution and sewer backup problems in 52 municipalities in Cook County. The tunnels connecting the approaches and the tubes were dug through and under the original tunnels. The tunnel section under the river was removed and a two tube steel plate replacement built in a drydock on Goose Island was lowered into a trench in the riverbed. The subway was not built, concrete ramps raised the tracks up to street grade. The grades were aligned for the cars to enter from a shallow subway just below street level. The approaches were deepened to a new lower tunnel level. The tunnel was closed to cable cars on October 21 1906. The reversing of the Chicago River in 1900 exposed the roof of the tunnel in the new riverbed and in 1904 the Federal government declared it a hazard to navigation. If they repaired it and made other local improvements they could use the tunnel exclusively for cable car service. On March 23, 1888, the North Chicago Street Railroad leased the tunnel.

Originally built with one lane for pedestrians and 2 lanes for horse-drawn traffic, by the 1880s it was in poor condition.

Tunnel chicago