just got a pipe type 'mpaa' or 'mppa'. what could this be? i believe the last 'A' represents 'arch'
i'm starting to think mppa is metal plate pipe arch. anybody that can verify this would be appreciated
I am not familiar with the term "MPPA" generally you would expect to see something like Structural Plate Pipe Arch or Corrugated Metal Pipe Arch. If the MPPA came from a field crew it might be possible. You would expect that such a pipe would be perhaps 6 to 20 feet high and an larger width. If it is old it might be boiler plate.
Check this link for large fabricated plate pipe products http://www.lane-enterprises.com/spp_overview.php
thanks for the catalog. we got the terminology from our civil engineer. he just verified 'mppa' as metal plate pipe arch. there was no 'mpaa'.