| Location | Toronto, ON |
| Size/Type | 1500mm-1200mm RCP, RCB, Brick Arch |
| Drain Type | Stormwater |
| Length | ?km -explored 1.2km |
| Features | Old brick arches |
| AOTU Rating |   |
| Discovered By | Angles of the Underground |
| First Documented Exploration | Angles of the Underground |
| Notes | |
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AOTU Members present for exploration: Umbra & Phaedrus Friends of AOTU present: none Photographs by: Umbra | |
 Start PicLens SlideShow | |
One of the first AOTU drains, Bumpy Bridge, gets its name from the Humber bike path bridge that crosses the river just south of it. It’s a very small, very old drain that takes its toll on anyone taller than 4 feet. If you meet this criteria (midget, dwarf, etc) or love pushing through small spaces you will be rewarded with lots of pipe shape and size variety.
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