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Ryan Lincoln maneuvers his boat through floodwater in downtown Davenport, Iowa, on Thursday, May 2, 2019. (Kevin E. Schmidt / Quad City Times via AP)

The swollen Mississippi River and its tributaries were receding in many flood-ravaged communities on Monday, but concerns remained high because of the threat of heavy rain over the next few days.

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Standing water along Foster Avenue near River Park on May 1, 2019 was caused by catch basins that filled with debris and drained slowly, according to a spokesperson for the Chicago Department of Transportation.

Ready for even more rain? A look at how local tunnels and reservoirs handled the wettest week in years – and what’s next.

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The new Albany Park Stormwater Diversion Tunnel diverts water 150 feet below the surface. (Courtesy Chicago Department of Transportation)

Nearly 6 inches of rain has fallen in and around Chicago since last weekend, which in years past might have caused significant flooding in some neighborhoods. But that hasn’t happened, city officials said.

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Flooding in Chicago’s Albany Park neighborhood on April 18, 2013. (Center for Neighborhood Technology / Flickr)

With conditions perfect for flooding, the Better Business Bureau’s Chicago division is urging area residents to take precautions when hiring contractors to address flooding-related damages. 

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Ice covers the Chicago River on Wednesday, Jan. 30, 2019. A deadly arctic deep freeze enveloped the Midwest with record-breaking temperatures triggering widespread closures of schools and businesses. (AP Photo / Teresa Crawford)

Melting snow and potential rain are likely to cause flooding as we head into a weekend warm-up following a record-setting Arctic blast.

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Project Manager Justin Rossman of Site Design Group explains the highlights of Ashe Elementary School’s planned garden to Dean Alonistiotis, aide to MWRD Commissioner Kimberly Du Buclet. (Courtesy Metropolitan Water Reclamation District of Greater Chicago)

New outdoor spaces at a handful of Chicago elementary schools will provide safe play areas for kids in low-income neighborhoods while also mitigating flooding risks, according to program organizers. 

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A section of the North Branch of the Chicago River in Edgebrook on Oct. 2, 2018 (Alex Ruppenthal / Chicago Tonight)

Overnight storms brought more than 1.5 inches of rain in parts of the Chicago area Monday night, prompting sewage discharges into several local rivers.

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The latest on a major city infrastructure project that officials say was made necessary because of climate change.

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Chicago has seen 6 inches of rain in June, well above the historical average, according to data from the National Weather Service. (Chicago Tonight)

Chicago has seen 6 inches of rain in June, well above the historical average of about 2.5 inches, according to data from the National Weather Service.

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McCook Reservoir (Courtesy Metropolitan Water Reclamation District Board of Commissioners)

The newly opened McCook Reservoir kept untreated sewage out of the lake, but not out of local rivers.

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Flooding in suburban Glenview on Feb. 20. (Chicagoland Flood Forum / Facebook)

Melting snow and more than 2 inches of rain have caused flooding and sewer backups in and around Chicago.

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 Flooding in Chicago's Albany Park neighborhood on April 18, 2013. (Center for Neighborhood Technology / Flickr)

A forecast of heavy rain, unseasonably warm temperatures and melting snow presents a flooding risk for Chicago. MWRD offers tips to prevent basement backups and reduce strain on local water systems. 

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McCook Reservoir (Courtesy Metropolitan Water Reclamation District Board of Commissioners)

Public officials gathered Monday to celebrate the completion of stage one of the McCook Reservoir, which will offer 10 billion gallons of storage capacity to prevent flooding once complete in 2029. 

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Flooding in Albany Park in April 2013 (Center for Neighborhood Technology / Flickr)

There are more soggy days ahead. Find out how you can help ease the burden on the Chicago River and reduce the risk of flooding.

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Chicago’s sewer and deep tunnel system couldn’t handle this weekend’s rain, allowing untreated sewage and stormwater into Lake Michigan.

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After heavy storms, the Chicago River’s North Branch floods hundreds of homes on the Northwest Side. The Chicago Department of Transportation is now constructing a permanent flood-fighting weapon. We take a look.

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