What are these holes in my garage wall

[gardenerbill]

Hi all, I'm wondering if anyone can please shed some light on what these holes are for in my wall at the back of my garage?

The wall is a retaining wall for a raised bit of the garden (there is concrete above it so I'm not exactly sure at what point the concrete ends and the earth begins.

I've posted pics of whats above the wall, all rubble is temporary as I've dug out a load of it that was left down the side which is another story.

I thought the holes could be weepholes, but they look pretty large and draining water into a garage seems like a bad idea? They look to be a brick and a half deep and then I can see what I think is rock/concrete. I'd like to make the garage into a gym or something but wanted to find out what these holes were before filling or attaching anything.

Thanks

Bill

IMG_20190619_133509

• gardenerbill
• 20 Jun 2019

IMG_20190619_133517

• gardenerbill
• 20 Jun 2019

IMG_20190619_133601

• gardenerbill
• 20 Jun 2019

IMG_20190619_133621

• gardenerbill
• 20 Jun 2019

IMG_20190619_133640

• gardenerbill
• 20 Jun 2019

IMG_20190619_133645

• gardenerbill
• 20 Jun 2019

IMG_20190619_133811

• gardenerbill
• 20 Jun 2019

IMG_20190619_133824

• gardenerbill
• 20 Jun 2019

 

[tony1851]

They will be weep holes because if water builds up behind a retaining wall, it increases the lateral pressure on the wall considerably.
As for them discharging into the garage, probably originally seen as the lesser of two evils...?

 

[gardenerbill]

Thanks Tony, I'll leave them well alone it that case. If its the lesser of two evils I guess any other ways of rerouting the discharge would mean a lot of digging or running a pipe from the weephole?

Cheers

Bill

 

[catlad]

It also may not have been a garage originally.