Not an uncommon practice to be returning former airfields to their original use – part of the recycled concrete runways from Bircotes [RAF Worksop??] were crushed and used as hardcore for the approach routes to Newark’s second hangar.

Hi TwinOtter

RAF Bircotes and RAF Worksop are two different airfields. Bircotes was a small grass surfaced field just outside Bawtry. Worksop is near Scofton, to the east of Worksop. Indeed most of the concrete from the runways has now gone. Have a look at RAF Worksop on my website which shows the main runway extant, and later the remains, here

http://oldairfields.fotopic.net/c1043788.html

Some of Bircotes can be seen here

http://oldairfields.fotopic.net/c1040466.html

Regards

Noel