Unusual vessel anchored in clear lake

[Superior Dive Services]

 
There is a strange vessel in clear lake close to LYC, seems about 80'.  It is gray, with a larger bow and sits rather low amidships.

Does anyone have any idea of what type of boat this is or what it is doing?  It has been there for a couple of days now and has a dingy rafted up next to it.

[Charles]

It is an old Navy landing ship/barge, used to drive up on a beach and offload tanks, trucks, dozers. The front is a ramp and will lower down when they hit the beach. Whoever owns it uses it as a work boat. I think they do piling and bulkhead work.  I saw it down in the Galveston Yacht Harbor last year working on their bulkheads.

[DollFin]

It was anchored by the Turtle Club last week during the Weds. Night finals and we saw it over the weekend during the Compass regatta - they mist like watching sailboat races.