Barring bad weather, River Forest’s largest public works project ever is on track to be completed in November.
From its start in early April, the Northside Storm Water Management Project Sewer has flowed on course without interruption along Greenfield Street from Keystone Avenue east to its present location at Lathrop Avenue.
The only hiccup was when street light cables got nicked once or twice, and those were repaired quickly, said John Anderson, River Forest’s public works director.
Curbs and driveway aprons are replaced, and a layer of binder asphalt is laid once the sewer installation in an area is concluded. That work has just finished up on Forest Avenue and will proceed next to Park Avenue, Anderson said.
As the project moves east to its final spot at William Street, anything in the way has to be relocated. Gas and water mains from Greenfield Street south to Division Street are being reinstalled so as not to interfere with installation of the larger storm pipe.
Flags marking the locations of gas mains are in place in the parkway and paint marks the site of water mains that could be moved if needed, Anderson said. Cable TV and electric companies already have relocated lines underground.
Residents continue to be apprised of work in their area by email message and other means.
The remaining touches — parkway landscape restoration and the final layer of asphalt — will be added in the spring.
Project information, weekly updates and a play-by-play of the project can be found on a specifically created website, nsmp.vrf.us. Updates are provided every Friday.
The $13.7 million enterprise consists of the construction of approximately 30,000 feet of reinforced concrete storm sewer pipe, ranging from 12 to 96 inches in diameter, that will convey storm water westward and discharge into the Des Plaines River through an outfall constructed last year.
The trunk line will be constructed on Greenfield Street, with lateral sewers ranging in size from 30 to 42 inches in diameter, tying into the trunk line from the north and south. Where feasible, the existing combined sewers will remain in place and operate as sanitary sewers.
The sewer separation project will also include the installation of large junction chambers, new drainage structures and new sanitary sewers and water mains, where necessary, as well as resurfacing of all streets within the project area and all other site restoration.