NEWBURGH – Construction continues on the City of Newburgh’s North Interceptor Sewer Replacement project.
Construction crews work on Colden Street to install A new 36-inch diameter fiberglass reinforced polymer mortar sewer main.
Two other construction crews are working simultaneously on the construction of the first deep shaft at Broadway and Colden Street, and also at the second shaft located at the intersection of former First Street and Colden Street.
An excavator is used to dig through the first 15 feet of soil at each shaft location. Then a larger excavator is brought in with a grinding head to remove the solid rock down to a depth of 50 feet.
A tunnel boring machine is being constructed off-site which will be transported to the site once the shafts are completed and launched from the first shaft at Broadway and Colden Street boring a tunnel in a northerly direction along Colden Street to the receiving shaft for installation of the new sewer main.
