The oldest fire station in Omaha is to be replaced by a new building just blocks away, and city and fire officials are canvassing for ideas on what to do with the almost 70-year-old Fire Station 31 in the southeast of the city. The original two-story brick station was built around 1907 and was replaced by the one-story concrete and steel building that opened in 1949. Fire Chief Dan Olsen has said it can no longer properly shelter modern fire-fighting equipment, which is often too tall, wide or heavy. Construction of the replacement station — within six blocks of Station 31 — is scheduled to be completed in 2021 at a preliminary cost of $5 million.