Thanks for the replys. Yes, we were surprised by the rupture, too, and believe it must have been damaged when installing, because the pipe on either side is only deflected about 7%. As far as the highly deflected areas, we also checked into a company in OH that does rerounding using a vibrator...
Currently have 1750' of 30" HDPE double wall pipe carrying storm water across a new lock project. The pipe is buried at depths ranging from 20-30 feet. We are looking into ways of repairing a rupture and deflection issues of up to 17%. It must be remote access. I have looked into Link-Pipe...