Derry Public Works (DPW) Director Mike Fowler flicked on a slide. “This condition is called ‘rutting,’” he said of a paved road filled with furrows. “This road actually had a 7-inch depression at one spot.”
Fowler and Derry Highway Supervisor Alan Cote spoke at the Sept. 17 Town Council meeting to explain their highway maintenance system and how they decide which roads get attention, and when.
Fowler’s system relies heavily on data gathering, he said as he narrated a PowerPoint presentation. He uses a rubric called a Pavement Control Index (PCI),
