Inline Detention

[bank]

We are proposing to use concrete box culverts for inline detention beneath the streets. Does anyone know of a product or method of closing off/sealing the upstream ends of the boxes? I found a company in Canada that manufactures plugs, but they only deal in metric sizes. I've been unable to get satisfactory results from American manufacturers.

 

[TigerGuy]

Presuming these are pre-cast units, have you discussed with the supplier. Many can custom fabricate the end section you need.

 

[SwinnyGG]

What exactly have you found 'unsatisfactory' about sources within the US? It sounds like you need regular old RCP plugs, which are readily available.

This also sounds like a means & methods problem for the contractor to solve. Direct them that the pipe needs to be plugged and let them figure it out.