Questions From the Field
Questions from the Field is a selection of questions NPCA Technical Services engineers received from calls, […]
The Danger That Lurks Below
In June, city workers conducting regular maintenance in downtown Indianapolis detected an underground sinkhole that, thankfully, […]
New ASTM Standard Creates Value for NPCA Members
NPCA members that manufacture manholes received a big boost in 2016 that should be kept in […]
Precaster’s Notebook: Fixing Manhole Installation Problems
How to assess and repair manholes with misaligned rungs, leaks and section damage from improper backfill […]
Precaster’s Notebook: Fixing Manhole Installation Problems
By Gary K. Munkelt, P.E. Drawings by Sue McCraven, NPCA What problems become obvious during installations, […]
