WATERVILLE — City councilors tonight are expected to take a final vote on whether to sell the Old 470 steam engine to New England Steam Corp. for $25,000.

The council also is expected to appoint a new city councilor to represent Ward 6 after interviewing three candidates for the position. The candidates are Dana Bushee Hernandez, Michael Owens and Eric Poirier. The new councilor will fill the unexpired term of Eliza Mathias, who resigned recently.

The meeting will be at 7 p.m. in the council chambers at The Center downtown and will be preceded by a review of the city’s 2012-13 audit at 6:45 p.m.