- King's Norton Stop Lock
Kings Norton Stop Lock (gbmapping|SP055794) is a Grade II*
listed building atKings Norton Junction on theStratford-upon-Avon Canal near its junction with theWorcester and Birmingham Canal . It is the only guillotine-gated stop-lock on a canal. [cite web | title=King's Norton Stop Lock | work=Waterscape.com | url=http://www.waterscape.com/Birmingham/places_to_go/attractions/King's_Norton_Stop_Lock/sid1176 | accessdate=2007-10-03]This stop lock was built to prevent water flowing from one canal to another, regardless of which side was higher, but normally the Stratford-upon-Avon Canal was six inches higher. Canal companies were always concerned with the conservation of their own water supplies. cite web | title=Birmingham's Scheduled Ancient Monuments | work=www.birmingham.gov.uk | url=http://www.birmingham.gov.uk/GenerateContent?CONTENT_ITEM_ID=14109&CONTENT_ITEM_TYPE=0&MENU_ID=11470&EXPAND=1473#guillotine
accessdate=2007-10-03] There was also a toll house adjacent to the lock. [cite web | title=King's Norton Historical Trails, Industrial & Commercial Heritage | work=River Rea Heritage Trail | url=http://www.riverreatrail.org.uk/index.php?option=com_content&task=view&id=47&Itemid=108 | accessdate=2007-10-03]The wooden guillotine style gates are suspended in a slightly raked cast iron girder frame by a chain which passes through a small block on the gate. One end of the chain passes over two large wheels to a winch mechanism. The other end passes over two more large wheels to a hidden counterweight built into the side wall of the lock. [cite web | title=King's Norton's Listed Canal Buildings | work=www.kingsnorton.info | url=http://www.kingsnorton.info/places/canal_buildings.htm
accessdate=2007-10-03] There was no need for paddle gear to fill or empty the lock. With such a small difference in water level a guillotine gate could easily be lifted to let water flow in and out. The existing gates probably date from 19th century. ] Since the nationalisation of the canals in 1948, water loss from one canal to another is less of an issue, so the gates are no longer in use and are both left open. The last recorded use of the gates was 1959.A bridge carries Lifford Lane over the lock, and hence the latter is sometimes referred to as Lifford Lane Stop Lock.
References
*IoE|217363|- Grade II*
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