DFD Engine House #5 Duluth Fire Department Engine House #5. (Image: Zenith City Press) 2140 Minnesota Avenue | A. Reinhold Melander, Architect | Built: 1931 | Closed: 2012 Current Use: Private Residence Story by Tony Dierckins. Originally published on Zenith City Online (2012–2017). Click here for more stories by Tony Dierckins.