Portland Oregon Fire Hydrant Color Codes, 2002 Source:   Portland Water Bureau. HYDRANT COLORS TYPE BARREL NOZZLE CAPS PUMPER CAP DOME Standard Hydrant Orange Black Red Orange Dry Hydrant White White White White High Pressure Hydrant Blue Blue Blue Blue Private or non-city Red Red Red Red Non-hydrant (i.e, Bypass or Blow off hydrant)   Black Black Black Black Low-flow hydrant (i.e., 6" hydrant on 4" main)   Orange Black Red Black

Portland Oregon Fire Hydrants