So that's what Thursday's footbridge closure was about:
Wolfeeboy’s blog
[http://wolfeeboy.wordpress.com/2012/03/09/shoreham-beach-goings-on/]:
> I had a phone call from a friend, Ben Coe, this week, informing me that a photo
op would be presenting itself today, (Thursday), with the Footbridge being
opened to allow what will be the latest riverbank houseboat through,