Culvert

Collect your muddied mind's runoff and send it slipping away into the swiftly moving sewer. Culverts come in many shapes and sizes, including round, elliptical, flat-bottomed, pear-shaped, and box. They vary from the small drainage culverts found on highways and driveways to large diameter structures on significant waterways or supporting large water works. Culvert accidents can occur if a flood overwhelms it and disrupts the road or railway above it, such as the Bethungra accident of 1885, which killed seven. Let it flow with the sound of a running culvert.