Mafia 3 no more damage to be dealt barclay mills

I did most of the barclay mills missions and brought the damage down to 2550 but now I can find anything else to damage or steal, so the meter is stuck at 2550 and the objective says "find and destroy garbage barges" but when I click it, no waypoint. Please help.


Go to barcleys mill area. Look for it on the map. Drive around and use your instict you'll see some enemies, kill them. Done.