Tower Bridge is a combined bascule and suspension bridge in London, England over the River Thames. It is close to the Tower of London, which gives it its name.ower Bridge is still a busy and vital crossing of the Thames: it is crossed by over 40,000 people (motorists and pedestrians) every day. The bridge is on the London Inner Ring Road, and (as of 2007) is on the eastern boundary of the London congestion charge]] zone.