Weir is an outlying area of
Bacup(where population details are included) in the
Rossendale borough of
Lancashire, England and is adjacent to the more historically significant
Broadclough. Anciently, Weir constituted a
hamlet, but underwent
urbanisation and, later,
suburbanisation to emerge as a residential suburb of Bacup town after the Burnley Road turnpike was built through the settlement in the 18th Century. Weir straddles the
A671 road and is located by the source of the
River Irwell, adjacent to the parish of
Cliviger. Burnley Road is an accident blackspot, with many crashes taking place over the years often being caused as drivers continue to travel at speeds they would in open countryside. Weir has 2 Pubs, 1 school and 1 shop.