Jubilee Bridge - Queensferry, UK
Posted by: Groundspeak Premium Member dtrebilc
N 53° 12.641 W 003° 01.000
30U E 498887 N 5895708
This Bascule Bridge carries Welsh Road over the River Dee.
Waymark Code: WMWGXT
Location: North Wales, United Kingdom
Date Posted: 09/04/2017
Published By:Groundspeak Regular Member razalas
Views: 0

"The Jubilee Bridge (also known as the Blue Bridge) is a double leaf rolling bascule bridge which spans the River Dee at Queensferry, Wales, United Kingdom.

The bridge takes its name from the previous bridge which was completed in Queen Victoria's diamond jubilee year of 1897. The abutments of the old bridge are still visible to the north of the current bridge.

By the 1960s shipping had ceased on the River Dee. The bridge's lifting mechanism was removed and the roadway fixed permanently in place.

In 2005 the Jubilee Bridge was awarded Grade II Listed building status by Cadw." link

"Constructed in 1924-6 by Sir Basil Mott and the Flintshire County Surveyor and Bridge Master, R G Whitley. It replaced the Victoria Jubilee Bridge, completed only in 1899, which did not have the size or strength to carry the volume of traffic. The snecked stone abutments of the Victorian bridge survive immediately to the W.

Bascule bridge constructed of riveted I-section steel girders, the slightly humped deck with opening joint to centre, supported on 2 pairs of large circular piers, rendered over iron or steel, each pair separated by lateral braces; low abutments built of concrete blocks. The superstructure is of vertical and raked steel posts, horizontal steel beams, with lateral braces across top of lighter lattice work. The opening mechanisms, located over the 2 sets of piers, consist of pairs of curved racks, which swung down onto pegged beams pulling up the cantilevered road sections; attached above each pair of racks is a large angled steel plate within a high vertical superstructure of lattice steelwork, girders curving down to join the top of the main superstructure. A frame containing the gearing mechanism, including small gear wheels, is located in front of the steel plates, but the original power source has gone. The road is flanked by footways outside the main superstructure, supported underneath by curved beams; the footways pass under original steel archways which are joined to the opening mechanisms, and they have plain steel railings. Many of the steel girders are labelled 'Cargo Fleet England', a few marked 'Lanarkshire'.

Listed for its technical interest as a rare surviving example of a bascule bridge, retaining its architectural character and detail." link
Wikipedia Url: [Web Link]

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