13:30Our RiversEpisode 3: The Upper Bann: Dams, Castles and BridgesBBC Radio Ulster Duration: 30 minutes Sun 10th Nov 2013, 13:30 on BBC Radio UlsterHelen Mark and Michael McNamee journey along six of Northern Ireland's most important and fascinating waterways. The rivers around us are among our most precious resources.GenresFactualScience & NatureFormatsDocumentariesSeriesOur Rivers Source: BBC Online