| Location | Toronto, ON |
| Size/Type | 2400mm RCP |
| Drain Type | Stormwater / Access shaft |
| Length | 50m |
| Features | Staircase to nowhere |
| AOTU Rating |   |
| Discovered By | ?? |
| First Documented Exploration | AOTU |
| Notes | |
|
AOTU Members present for first exploration: Umbra, Sid, & Infestix AOTU Members present for additional explorations: Umbra, Rico, Ignavus, & K00PS Photographs by: Umbra & Ignavus | |
 Start PicLens SlideShow | |
The South Humber tunnels are two separate tunnels sharing their layout and proximity. Both are large 2400mm RCPs that wind west from the Humber River. They are arguably not really drains, but are simple access tunnels only to provide access to a sewage pipe via a bolted hatch on the floor. To reach the hatch you must ascend a two flight staircase and this is definitely the most interesting feature of the tunnels. The differences between the two are obviously the outfalls. The Southern outfall is just a simple swinging gate but the Northern tunnel has a very elaborate vault door entrance. It's usually locked tight, but has been known to be left open once in a while...
| Tunnel 01 (Northern) - The Hatch :: Latest Trip |
| Tunnel 02 (Southern):: Latest Trip |
| Old Trips (circa 1999) |
| AOTU :: Drains :: Humber River :: South Humber Tunnels |
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