Tidal Bore on the River Mersey 9th September 2014

I filmed the Mersey bore as it passed two locations: Wigg Island (which sits in between the Manchester Ship Canal and the Mersey, in Runcorn) and Forrest Way Bridge (near Sankey Bridges, Warrington). The start of building work on the new Mersey Gateway Bridge can be seen (two cranes by the river bank) on the opposite bank to the power station.

The largest wave I observed was about 2ft, and sometimes the bore almost disappeared as it entered deep parts of the river. As the bore approached the Forrest Way Bridge, many waves appeared to be stacked up behind the main header in a regular pattern. These are known as whelps.

Expected high tide at Liverpool Gladstone Dock on 9th September, 2014: 9.8m at 11:59.

The bore passed Wigg Island at 10:45, and passed under Forrest Way Bridge at 11:50.

If you are interested in other tidal bores of North West England, click on my name (Rob Bridges) above to see more.