Complex sentence: The Gateway Arch is visible downriver; and, immediately below the bridge, two water intakes for the St. Louis Waterworks are visible (see Gallery): one is vaguely Gothic Revival in style, the other closely echoes Roman ruins from Trier in modern France.
Split into simpler sentences: The Gateway Arch is visible downriver, and immediately downstream from the bridge, two water intakes for the St. Louis Waterworks are visible (see Gallery). One is vaguely Gothic Revival in style; the other closely echoes Roman ruins from Trier in modern France.