A crane barge is being called in to remove large slabs of metal ripped off the grounded Transocean Winner oil rig.
A 1.5 tonne propeller was one of the parts torn off when it was towed from rocks at Dalmore Bay in Lewis.
Other big pieces of broken oil rig are littering the seabed since it crashed into the shore in a summer storm on 8 August.
Islanders are warned the debris may be hazardous and could sweep ashore by the sea.
An exclusion zone, only to seaward, remains in place at the Dalmore Bay until all the broken metal parts are removed.
An utility work vessel, with an onboard crane is due to move in when sea and swell conditions ease.
Transocean plans to conduct a future programme of surveys in an effort to ensure the area is clear of debris and safe for people.
Crane barge required to remove heavy debris from grounded oil rig
1 September 2016