There is a Burtonport in County Donegal, Ulster, Ireland.

Burtonport railway station was created in 1903.

Burtonport railway station ended in 1940.

Burtonport in Donegal I assume, so your nearest major town is sligo which is what I could find information on. Lunitidal interval is equal to the difference in time between the noon of the moon and the next high tide. Your next moon noon is 07:35:30 on 25/08/2016, which is the mean of moonrise and moonset. High tide tomorrow is at 12:05:00 so lunitidal interval is 4:16:30 = 4:17. Also you need to enter +1 UTC as you are in daylight saving and a longitude of 54.2766.