Downspout

A downspout, waterspout,[1] downpipe, drain spout, drainpipe,[2] roof drain pipe,[3] rone[4][5][6][7] or leader is a pipe for carrying rainwater from a rain gutter.

The purpose of a downspout is to allow water from a gutter to reach the ground without dripping or splashing down the building structure.

Downspouts are usually vertical and usually extend down to ground level, although may be routed at an angle to avoid architectural features and may discharge onto an intermediate roof.

This may be a simple bend of, typically around 70 degrees, at the bottom.

Decorative heads are sometimes added, these being low-height gargoyles.

Rain gutter and downspout
A downspout in Strasbourg Place du Chateau.