In the space of just a little over a week three major organizations have suspended use of the collapsed tunnel.
Last week, UKI announced the suspension of the collapsed tunnel and today, AKC and USDAA announced the suspension of the collapsed tunnel as an obstacle.
https://akcagilityjudges.wordpress.com/2016/08/29/akc-agility-suspends-use-of-the-collapsed-tunnel/
http://www.usdaa.com/article.cfm?newsID=3333
https://www.facebook.com/UK-Agility-International-249253213369/?hc_ref=PAGES_TIMELINE&fref=nf
P.S. TDAA has also discontinued the use of the collapsed tunnel effective 9/1/2016.