2/13/21 - Only 6 gallons of sparge water fit in mash tun. Added remaining .5 gal. while draining mash. - split batch, thin fermenter 5.5 gals. us-05 yeast, fat fermenter 6 gals. Nottingham yeast 3/6/21 - kegged thin fermenter 1.012 fg. 3/14/21 - kegged fat fermenter 1.010 fg.
Based on boiling 13.88 gallonsliters at 1.057 for 60 minutes, this will decrease your wort by 2.00 gallonsliters, bringing your after boil OG to 1.065. You wanted an OG of 1.059. It looks like it will be over.