A portion of College Avenue will be closed for several days starting this morning as Illinois American Water replaces a number of valves in the area. The Circle, also known as State House Square, will be closing at 7 a.m. this (Thursday) morning and remain closed until Tuesday, December 23rd according to Alton Public Works. During the closure, northbound traffic on Central will be detoured Tremont to Pleasant to College. Southbound traffic on Central will also be detoured.

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