Seattle Public Utilities Mami Hara, General Manager/CEO

Holes in Pipes

Holes in side sewers can cause surrounding soils to erode into the pipe. This can result in empty space forming around the pipe, leading to sink holes at the ground surface. In addition, soils can cause debris buildup in the pipe and cause backups.

Recommendation

Repair

holeMinorSideSewer

Small hole with aggregate showing.

Repair

holeModerateSideSewer

Medium hole with void

Repair

holeSevereSideSewer

Large hole with void.