how to unblock a 2 ft wide culvert pipe?

[glasshouse]

so concrete pipes 2ft diameter and over 30m in length have a blockage somewhere in the middle. probably logs, grass debris etc.

drain rods useless, tried steel poles etc, but to no avail.

any tricks anyone??

Get telegraph poles, and bolt them together like giant draining rods
Push up with forklift from downstream end

 

[glasshouse]

Or use a digger to push it up ifyou cant get a telescopic near the outfall

 

[glasshouse]

Is thre a big lake built up?

 

[Dry Rot]

Rodentator

 

[Highland Mule]

Any dead horses lying around? Could do two jobs in one....

 

[MrNoo]

I could actually see that working

Yes, they have some force behind them when they go. A very good friend's brother was killed by one that fell over and broke the regulator off, knocked him off his feet, shot across shed, hit wall and then went back at him, died of head injuries. Very sad state of affairs.

 

[Dry Rot]

The drain jetter would be a good start, then one of those cork screw gadgets on a set of drain rods. Finish off by pushing out from the up stream end.

I'd a drain from the domestic sink here blocked for years. There is a high water table anyway but blocked drains cause the water to back up. Some female must have been pouring frying pan fat down the sink which solidified on the top of the water forming an impermeable layer. I tried everything. Eventually dug the drain out and relaid a new pipe. Do it right, do it once.

I have a similar 30m culvert to the OP's but only about 450mm diameter. I'll probably be trying the above when it dries up a bit and I can clean the ditches out first.

 

[Highland Mule]

Thinking about this more, when you do get around to unblocking the pipe, can I request that you video the unpopping and share the result with the forum?

 

[Paul E]

 

[Neddy flanders]

managed to join enough 1" steel tube together like drain rods, with a slight bend at the end to lift the tip off the base of the pipe. began to worry it wouldn't work, but with two of us jiggling it about trying to push in different spots, it suddenly went. can only assume it was a pile of logs and grass wedged sideways which we managed to dislodge. nothing came out so now guessing logs are laid length ways but lake of water upstream can get away. sorry no photos as standing in waist high water, wsnt taking phone anywhere near.... thanks for help everyone

 

[fermec860]

Get telegraph poles, and bolt them together like giant draining rods
Push up with forklift from downstream end

I’ve used telegraph poles use biggest that will fit in pipe thro them in upstream use digger to steer them into pipe allways attach rope or chain to retrieve but it always works for me