Systems and methods for tethering subsea structure mounted on a wellhead

A pile top assembly comprising:

• an adapter configured to couple to an upper end of a subsea anchor;
• a tensioning system mounted on an upper end of the adapter;
• a flexible tension member having a first end coupled to the tensioning system, wherein the tensioning system is operable to pay in and pay out the flexible tension member relative to the tensioning system;
• and
• an elongate pin coupled to the adapter and operable to selectively be received into and locked in receptacle disposed at the upper end of the subsea anchor.

A pile top assembly comprising:

• an adapter configured to couple to an upper end of a subsea anchor;
• a tensioning system mounted on an upper end of the adapter;
• a flexible tension member having a first end coupled to the tensioning system, wherein the tensioning system is operable to pay in and pay out the flexible tension member relative to the tensioning system;
• and
• means coupled to the adapter for selectively engaging the upper end of the subsea anchor.