In the late 18th century the primary transportation to and from Alexandria was the Juniata River, suitable only during summer and when the water depth permitted. On May 3, 1808, the new road from Harrisburg to Alexandria opened, permitting a more reliable connection with the outside world. In 1833 the Juniata Division of the Pennsylvania Canal was opened, the promise of better transportation started a mini housing boom in Alexandria. By 1875 the canal was abandoned and the Pennsylvania Railroad managed the transportation needs of the area. Around this time the growth of the area slowed, while the populations of Huntingdon and Hollidaysburg grew.