This information is from the Portland Water Bureau.
Water Main flushing will begin in your area on November 18th and continue through December 10th. Flushing will occur Monday-Thursday, typically from 8 am to 4 pm. Flushing will not occur over the Thanksgiving holiday.
Customers can view flushing project location updates here: https://www.portland.gov/apps/water/waterworks/
General information about water main flushing (and what to do if you see discolored water) can be found here: https://www.portlandoregon.gov/water/67972
Customers may notice temporary discolored water (yellow/brown) or slightly lower water pressure while the water mains on their street are being flushed. If the water is very discolored (coffee/mud color) or pressure drops significantly, customers should report this to the Water Quality Line: 503-823-7525 or WBWaterLine@portlandoregon.gov.Edit