Hunterdon County officials want a section of scenic road that hugs the waterfront of the Round Valley reservoir reopened immediately by the water authority that closed it for construction. A letter from John E. Lanza, director of the Hunterdon County board of commissioners, demanded an immediate reopening to a section of County Route 629 in Clinton Township and Lebanon Borough that has been temporarily closed for reservoir construction since 2020. “The ongoing closure of County Road 629 continues to be a matter of great concern for nearby residents, Lanza wrote. “One of the items of greatest c…