"SMOOTS", measuring in Boston!
A Bridge in Boston was laid out in "Smoots" not inches or feet!
A Pledge at the time was used to measure how far across a bridge it was! It was painted each year by the then "Pledge Class".
The Bridge was destroyed and replaced with a new one. It was decided that "Smoots" would be measured once again and this time it was done in the decking in concrete.

Still painted though!