The Duncannon Weir MS,600 National Library of Ireland Went, Arthur EJ. "Irish Fishery Weirs. II. The Duncannon Weir." The Journal of the Royal Society of Antiquaries of Ireland 78.1 (1948): 1-4.
Occasionally, we are lucky enough to find drawings of #fishweirs that appear in historical drawings and plans of other structures. One of the best examples from Ireland is the fish weirs at #Duncannon Fort, Co. #Wexford, on the #RiverBarrow estuary.
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