This is the 3rd of 3 park benches that I was commissioned to make.
Note, all structural joinery are pegged mortise and tendon joints. The pegs are made of mahogany. The back slats are now mortised into the back top and bottom rails. This is a change from the provided plan, The bottom tenon of the slats are not glued into the mortise, but rather, to mitigate any water damage I used clear silicone on the tenon and in the mortise. The squeeze out was allowed to harden for awhile and then gently cut away. Time will tell if this process is superior to the original plan.
I’m thinking this type of construction is now my standard for furniture construction. At least till I find something that has been tested and will last for decades.