The Gateshead Millennium Bridge
The bridge was designed by Wilkinson & Eyre Architects and Engineers and Gifford & Partners following a competition launched by Gateshead Council in 1996.
Linking Gateshead with Newcastle via Gateshead Quays (described as one of the best places in Europe by Tony Blair) and Newcastle’s Quayside, the bridge not only serves a functional purpose as the River Tyne’s only foot and cycle bridge, but its grace and engineering attract people from all over the world.
The Gateshead Millennium Bridge was open to the public on Monday the 17th September 2001, and later officially opened by the Queen on Tuesday 7th May 2002. The bridge is built for cycle and foot traffic and when open it tilts and rises 50 Metres above the River Tyne. It is illuminated by different colours at night, as can be seen from the photographs on this website. . 
The Tyne Bridge
The Tyne Bridge is a main road bridge linking Gateshead and Newcastle. The main span of the bridge is a steel arch, constructed in the form of a lattice framework. The bridge was designed by Mott, Hay and Anderson, M.M.Inst.C.E. of London and was built by Dorman, Long and Co., Ltd of Middlesbrough.
The Tyne Bridge is a fixed road bridge completed in 1929, and built at about the same time as the Sydney Harbour Bridge. It was opened by King George V and Queen Mary on the 10th October 1928 and is about 26 metres above the river at high tide. The total length of the bridge is 389 metres including the approaches. The bridge is 17 metres wide in the centre. 
The Swing Bridge
The Swing Bridge over the River Tyne connects Gateshead and Newcastle upon Tyne by road, and the bridge is situated low down between the Tyne Bridge and the High Level Bridge
The swing bridge is a road bridge that does what is says, unlike the Millennium bridge that raises, the swing bridge turns on a central pivot, and consequently is only 4.5 metres above the River Tyne. The Swing Bridge was completely built in 1876.
The hydraulic power to move the bridge is derived from electrically driven pumps, which feed a hydraulic accumulator sunk into a shaft on the side of the river, the water is then released under pressure to power the machinery to turn the bridge. The mechanism used for this is the original machinery orginally installed by Armstrong, who designed the bridge. Work on the bridge commenced in 1873. It was first used for road traffic on 15 June 1876 and opened for river traffic on 17 July 1876. It stands on the site of the Old Tyne Bridges of 1270 and 1781, and possibly of the Roman Pons Aelius.
The swing bridge has an 85.7 metre cantilevered span with a central axis of rotation able to move through 360° to allow vessels to pass on either side of it.
If you wish to submit an article about the bridges I will publish it, subject to review, and credit you with the details including a link to your email or website as you wish !!
Thanks Steve