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Discussion Starter · #1 ·
I'm looking at pouring a slab in my backyard. I recently dug in a 4" schedule 40 sewer line that connects to the cast iron main - also in the backyard. It connects at about 4 feet underground and the run of the sewer line gradually rises from that 4 feet to about 18".

My question is whether it is safe to drive a cement truck over this connection and new sewer run. The cement truck would drive over the Ell connection to the cast iron main. It's 4 feet underground and we backfilled and tamped as best we could, but there is still inevitable settling that will take place. The truck would also drive over some of the 4" pipe at a place where it is about 24"-30" deep.

Do you think this is OK? The concrete guys do, but they're also looking for the easiest way to get the job done.

Thanks for the advice.
 

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They do not look for the easiest way, he is just giving his opinion as we do here. 2-3' is not very deep. You do not know the soil conditions or compaction. I would not chance it. Power wheel barrows are great for this work
 

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I too was thinking 2x material. I would NOT let the truck drive over the connection hole, just lay the planks perpendicular to the trench.

This is my opinion only, ultimately it is your decision.
 

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2x planks will snap like a toothpick to even a half full cement truck. Better find some bridge plank material. 'Here' that would entail finding where the county crew took out an old bridge lately and reclaiming a bunch of old used stuff. A double layer would not be too much,,and it better be on hard level surface,no holes or voids under neath. recently dug up soft dirt WILL collapse under truck weight if its damp. has it rained in the last two weeks?? Your 2X material MAY work to run a manuel wheel barrow on. If its A LOT of cement get a pumper ,,,but costs are going up quick!!!
 

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I've tried to use 2X materials and several sheets of plywood moving cement with my skid steer bucket and it still will snap these materials. Like you said it is your opinion that counts and it is you that has to hear about the yard smell to your neighbors after you break the sewer line.
 

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Discussion Starter · #15 ·
That's a good idea,

2x planks will snap like a toothpick to even a half full cement truck. Better find some bridge plank material. 'Here' that would entail finding where the county crew took out an old bridge lately and reclaiming a bunch of old used stuff. A double layer would not be too much,,and it better be on hard level surface,no holes or voids under neath.
That's a good idea, but then I also have to have a fairly heavy truck to haul that material in...

recently dug up soft dirt WILL collapse under truck weight if its damp. has it rained in the last two weeks?? Your 2X material MAY work to run a manuel wheel barrow on. If its A LOT of cement get a pumper ,,,but costs are going up quick!!!
It rained a week ago. The deepest section is fairly shaded as well. It's probably still damp down there.
 

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Discussion Starter · #16 ·
Pumper

If its A LOT of cement get a pumper ,,,but costs are going up quick!!!
I could get a pumper... but I also need to get a lot of gravel in a dump truck. I bet it'll be about as heavy as the cement, but maybe not. I'd hate to have to wheel all that down the driveway, but it might be the only option...
 

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I could get a pumper... but I also need to get a lot of gravel in a dump truck. I bet it'll be about as heavy as the cement, but maybe not. I'd hate to have to wheel all that down the driveway, but it might be the only option...
Again, check the cost of powered wheelbarrows.. that is what I use. Most all the time additions are in the rear with no access via truck. and if the truck gets stuck you have to pay for the tow and the extra time to get him out.
 

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Discussion Starter · #18 ·
railroad ties

I've tried to use 2X materials and several sheets of plywood moving cement with my skid steer bucket and it still will snap these materials. Like you said it is your opinion that counts and it is you that has to hear about the yard smell to your neighbors after you break the sewer line.
What do you think about using old railroad ties? I could lay a bunch of them side by side perpendicular to the ditch and then attach them together so that the truck wouldn't move them...
 
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