PITTSBURGH, Nov. 25, 2025 /PRNewswire/ -- "I thought there should be a way to create a flush pavement surface over recessed manhole covers on roadways," said an inventor, from Mount Royal, QC, Canada, ...
This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. You can find them on streets across ...
I was wondering if the Missoula city street design manual requires that manhole covers be recessed 2 inches to provide an adequate “thump” when driven over. Not only are they annoying, they are ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results