Shelby Public Utilities Department crews are at work on March 23 on a fire hydrant replacement project. A temporary water shutoff was announced for portions Park Avenue and Mack Avenue -- between Tucker Avenue and Mack Avenue -- today, Tuesday, March 23, between the hours of 8:30 a.m. and 1 p.m., the city of Shelby announced. The water will be temporarily off for the replacement of the fire hydrant, the city reported.