In searching for good photos for describing the removal of the form (sometimes called the 'former') on one of my dry stone bridges, I came across this footage from a news report the CBC did a while back on the bridge we built in Russell Ontario, near the nation's Capitol.
CBC Building The MacDougal Bridge, 10th and 13th, 2009
The second link shows the removal of the former.
CBC Removing the Former, August 19th, 2009
Interestingly, a rival TV news crew arrived in their truck minutes after the wood support had already been successfully removed and filmed by the CBC.
The head guy of the other TV station asked if we could put it back in again and film us pretending to take it out for his viewers, (even though the station had been given ample notification about when we were planning to do it )
Needless to say I did not entertain the idea of faking the removing of the former.