Re: Swoo (Drain) < Reply # 2 on 6/18/2015 11:26 AM > | Reply with Quote
The concrete section of the drain is a replacement for the old brick drains. The section of brick seen in the OP are separate to the newer tunnel (joined by a small side pipe).
It was called Swoo after the guys that found it were out the front discussing what to call it. One said, "We should call it Sw..." when he slipped on a rock "...ooooo"
Here's some shady footage of the old tunnel (gets brighter as it goes on).