Designed by German engineer Hellmut Homberg. The towers are about 200ft high. Opened by Queen Elizabeth II in 1991. It is officially, the most stressful section of the M25. The QE2 Bridge at the Dartford-Thurrock River Crossing.  Kent - aerial
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/29372296@N00">John Fielding</a> from Norwich, UK
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/john_fielding/20691946221/">Queen Elizabeth II Bridge - Dartford Crossing</a>