By Dan Haley
River Forest will close down the two southbound lanes of Harlem at Oak Avenue, beginning at 5 a.m. this Thursday morning to connect the new water main under Oak to the Harlem water main. This work will gum up traffic most of the day though by starting early, they hope to be finished by the evening rush hour. Morning, however, will be god-awful. Oak will be completely closed, so River Foresters will need to use Chicago or Quick to connect with Harlem.