Estimates on replacing the dilapidated Blue Building roof range from $121,000 to $181,000.According to information presented by city administrator Bill Brock to members of the Board of Mayor and Aldermen, “ballpark estimates” were obtained from Keith Bouldin of Tri State Development. Bouldin conducted emergency repairs to the roof to fix a 10-foot by 10-foot area where the rafters had fallen.“Y’all have been asking me about the Blue Building, the old City Hall,” said Brock. “I don’t have good news for you.