Manhole risers help raise valve boxes to grade
Problem: Newport News, with a population of about 183,000, is Virginia’s fifth most populous city. The city’s Water Distribution Operations Coordinator Jim LeVasseur says, “We have a complex water distribution infrastructure that delivers water to five districts and includes 1,700 miles of pipe, 11,000 fire hydrants, and three water treatment plants.T he problem is, when we raised streets with a paving lift, we didn’t have a good way to raise our valve boxes to grade. We used cast iron risers for a while, but they would rattle loose, even if they were epoxied, leaving
