ˌɛmdˈiː θˈɜːɾi wˈʌn ɚɹˈɪdʒɪnəli ɛkstˈɛndᵻd fɹʌm fɹˈɛdɚɹˌɪk tə mˈæntʃɛstɚ, jˈuːzɪŋ ðə pˈæθs ʌv wʌt ɑːɹ nˈaʊ ˌɛmdˈiː twˈɛnti sˈɪks ænd ˌɛmdˈiː twˈɛnti sˈɛvən.
MD 31 originally extended from Frederick to Manchester, using the paths of what are now MD 26 and MD 27.