The FAA's final recommendation in 2016 called for a 300-foot extension, which would make Runway 31/13 3600 feet.
ðɪ ˌɛfˌeɪˈeɪz fˈaɪnəl ɹˌɛkəmɛndˈeɪʃən ɪn tˈuː θˈaʊzənd sˈɪkstiːn kˈɔːld fɚɹə θɹˈiːhˈʌndɹɪdfˈʊt ɛkstˈɛnʃən, wˌɪtʃ wʊd mˌeɪk ɹˈʌnweɪ θˈɜːɾi wˈʌn slˈæʃ θˈɜːtiːn θɹˈiː θˈaʊzənd sˈɪkshˈʌndɹɪd fˈiːt.