Some pictures from the UL Athletic FB page
Upon further review, it appears that the trench in the mud bed is a key or stiffener that is intended to stabilize and rigidize the concrete. It appears to be at the 1/4 mark (give or take) of the slope. I would anticipate another 2 or three of these to be installed by the time all things are said and done.
There are currently 1 users browsing this thread. (0 members and 1 guests)