Metric signs in New Hampshire I-95 near Portsmouth Metric distance sign on I-95 north near Portsmouth, NH. Photo courtesy of USMA member John Woelflein, January 2011. I-293 near Manchester Metric distance signs on I-293 near Manchester, NH. Photos courtesy of USMA member John Woelflein. US 7 highest elevation Metric elevation sign, southbound on US 7 between Manchester and Bennington, VT. Photo courtesy of James D. Teresco. Last updated: 2015-11-17
