The feature appears in Google Earth in imagery dated 5/5/2020. The feature can be identified as a Mersey Flat barge 26 meters long and 7.5 wide. There is a version made of concrete at the Ellesmere Port Boat museum.
Modern (1901 and later), Uncertain
The earliest date of the feature, as a year, if known
The latest date of the feature, as a year, if known