Why Goose Hollow faces sewage backup risk
A concrete, terrain-driven reason backups can behave differently here than on higher ground nearby.
Goose Hollow occupies a natural low point at the base of Portland’s West Hills.
The neighborhood has a mix of aging apartment buildings along the MAX light rail corridor.
Its terrain means drainage from higher elevations naturally flows toward the hollow.
The neighborhood’s low-lying terrain means backups can be compounded by drainage converging from higher elevations, and older apartment risers serving many units off one line raise multi-unit backup risk.