(Portland. OR) -- Residents are being advised to avoid contact with Fanno Creek downstream of Southwest 86th Avenue for at least 48 hours due to increased bacteria in the water. This week's extreme weather caused a sewage pipe to fracture at the Fanno Pump Station in Southwest Portland Wednesday night, leading to a sewage release into the creek. Crews responded to the release around 9 p.m., stopping the flow about two hours later. How much sewage was released is not known. The incident is being investigated.