St. Catharines in Niagara Region, Ontario — Central Canada (North America)
Vertical Lift Bridges
This sheave (a grooved wheel that forms part of a pulley) was removed in January 1998 from Bridge 10 in Thorold. It is he same size as the sheaves on Bridge No, 5 at Glendale Avenue, visible to the south of Lock 3.
How it works. The operator and motors to move the span are located in the enclosure at the centre of the bridge. The span is connected by wire ropes to counterweights hanging inside the towers. Two small motors eaisly raise and lower the bridge as the sheaves at the top of each tower rotate in order to balance the counterweights.
Facts and Figures. Bridge No. 5 Glendale Avenue. diameter of sheave 4.04 m (13 ft. 3 in.) weight of sheave 10.9 tonnes (12.2 tons) wire ropes 16 per sheave diameter of wire ropes 41.3 mm (1 5/8 in.) length of moveable span 63.6 m (208 ft. 8 in.) vertical clearance 36.6 m (120 ft.) weight of moveable span 1107 tonnes (1240 tons) weight of counter balance 1107 tonnes (1240 tons) height
6 August 1999.
This sheave, donated to the St. Catharines Museum by The St. Lawrence Seaway Management Corporation, commemorates the 170th anniversary of the First Welland Canal and the 40th anniversary of the opening of the St. Lawrence Seaway.
Cette poulie, donnée au Musée de St. Catharines par la Corporation de Gestion de la Voie Maritime du Saint-Laurent commémore le 170e anniversaire du premier canal Welland et le 40e anniversaire de l'ouverture de la Voie maritime du Saint-Laurent.
No. 10 Bridge constructed in 1928 for Canadian National Railway.
Regular maintenance is essential to keep all components of the Seaway in working order.
Caution! climbing on the artifacts can be hazardous.
Topics. This historical marker is listed in these topic lists: Bridges & Viaducts • Waterways & Vessels. A significant historical year for this entry is 1932.
Location. 43° 9.307′ N, 79° 11.639′ W. Marker is in St. Catharines, Ontario, in Niagara Region. Marker can be reached from Welland Canals Parkway. Marker is on the grounds of the St. Catharines Museum and Welland Canals Centre between the museum building and the canal. Touch for map. Marker is at or near this postal address: 1932 Welland Canals Parkway, St Catharines ON L2R 7K6, Canada. Touch for directions.
Other nearby markers. At least 8 other Bollards & Fairleads (a few steps from this marker); Shipbuilding in Niagara (within shouting distance of this marker); Early Welland Canals (within shouting distance of this marker); Horse Drawn Grape Hoe (within shouting distance of this marker); Spring Tooth Cultivator (within shouting distance of this marker); International Shipmasters' Association (within shouting distance of this marker); The Welland Canals and the St. Lawrence Seaway System (within shouting distance of this marker); Welland Ship Canal (within shouting distance of this marker). Touch for a list and map of all markers in St. Catharines.
Also see . . . St. Catharines Museum & Welland Canal Centre. (Submitted on August 16, 2014, by Anton Schwarzmueller of Wilson, New York.)
Additional keywords. Welland Canal St. Lawrence Seaway
Credits. This page was last revised on September 27, 2019. It was originally submitted on August 16, 2014, by Anton Schwarzmueller of Wilson, New York. This page has been viewed 425 times since then and 45 times this year. Photos: 1, 2, 3, 4, 5. submitted on August 16, 2014, by Anton Schwarzmueller of Wilson, New York. • Bill Pfingsten was the editor who published this page.