I've come across some new information for this old thread.

By now, it should be clear that at least four Crete class barges have found their final resting place in Norway.

PD121 Cretejoist - Used as a barge by Christiana Portland Cement. (63.69062, 9.83112)

PD101 Cretelake / DPC57 - location unkn.

PD140 Creteravine/ DPC58 - Possible location at Kvamøy, see below.

PD46 Cretecove / DPC59 - Grounded 13.02.1942 while under German charter - Currently used as a jetty at Røssøyvågen (62.8172, 6.80263)

PD64 Creteglass - Norsk Fina, now bunkering quay at (59.36533, 5.28359)

The new piece of information I have to add to the puzzle is the existance of a Crete barge in Kvamøy (61.13031, 6.48244)

The local history is that it came to Norway in 1960, was used as wheat storage in Stavanger and came to Kvamøy in 1969 to be used as a jetty for lumber until 1993, when the business ceased.

Some reports lists Creteravine as "still floating in a Norwegian Fjord" in the late 70's - ref "MISCELLANEOUS PAPER C-77.I2
CONCRETE SHIPS AND VESSELS
PAST, PRESENT, AND FUTURE
by
Tony C. Liu and James E. McDonald" - Published October 1977.

It's not definite proof that the new finding is indeed Creteravine, but since the remains are too eroded that the name can be read, it's going to be hard to find the full provenance.