Proximity to watermain

Penn

Had an application in for a side extension in a housing estate. The house is at the end of a row of houses, with a road to the side. We got a request for further information, saying we are 1.5m from the 100mm watermain in the footpath to the side, and the requirement is 3m.

The request said to submit new plans showing a 3m distance, or alternative proposals that would ensure full protection of the watermain.

Now, access to replace or repair the watermain is not a problem, as the footpath is very wide, with grass on the side, and the housing estate is very quiet.

Would anybody know what alternative proposals could protect the watermain like they said? We already plan to have the top of the foundation below the invert level of the pipe, but is there anything perhaps that we could suggest to be built into the boundary wall (which will have to be taken down due to the works anyway) or something like that?

Jimbo

If the top of the founds is below the invert of the watermain, it shouldnt really affect it.

But if the council are insisting, you could propose to embed and encase the watermain in ,say, 150mm of concrete for the full length of the gable.

You would have to dig around and under the pipe by hand though and support it as you go along.

Penn

Jimbo wrote: »

If the top of the founds is below the invert of the watermain, it shouldnt really affect it.

But if the council are insisting, you could propose to embed and encase the watermain in ,say, 150mm of concrete for the full length of the gable.

You would have to dig around and under the pipe by hand though and support it as you go along.

When you say embed and encase, do you mean all around the pipe, or just beneath it and maybe up to halfway?

I was thinking one of their issues would be if they needed to replace or repair the watermain. Would that be possible if it was embedded in concrete? Especially if they wished to upsize the pipe, it would no longer fit the concrete.

I agree though, if the foundation is below the invert level I can't see why there is any problem. The extension and foundations are still located within the site

Jimbo

Yea, cover the pipe in concrete aswell. Just bedding it wouldn't be that effective.

If they wanted to replace it in the future, it wount be that troublesome to break the concrete.

Your might be better off calling the area engineer that dealt with the planning and ask them what would be acceptable to them - otherwise it could delay you another month if they weren't happy.

You should get their contact details by calling the planning department and quoting your planning number.

Penn

Jimbo wrote: »

Yea, cover the pipe in concrete aswell. Just bedding it wouldn't be that effective.

If they wanted to replace it in the future, it wount be that troublesome to break the concrete.

Your might be better off calling the area engineer that dealt with the planning and ask them what would be acceptable to them - otherwise it could delay you another month if they weren't happy.

You should get their contact details by calling the planning department and quoting your planning number.

Yeah, I've emailed the Senior water engineer because I couldn't get him on the phone but got an email back saying he's on holidays til monday. So I'll try ringing him again then just in case. I'll ask about the concrete, hopefully that'll sort it out.

If that works. I'll follow you everywhere on boards and thank every post you make for a month . Cheers

Jimbo

I also accept most major credit cards :pac:

Penn

Jimbo wrote: »

I also accept most major credit cards :pac:

You should have pointed that out before you already answered my question