Photo added by Higgypop Admin.
A single story, underground operations block constructed in 1950 as part of a project to provided complete radar cover for the UK, it went in to operation in 1953. The site is now in private ownership.
Posted by Higgypop Admin last updated Tue 19 Aug 2008 at 22:51
Portland, Dorset, United Kingdom
Grid reference: SY696735
None - the bunker is in private hands.
Visited by 1 explorer
Photos of Portland ROTOR
Portland ROTOR history
In the 1950s the Air Ministry launched a top secret project which provided complete radar cover for the UK, it was one of the UK’s largest defence project costing roughly £240 million. The high cost was due to the fact that at each ROTOR site meant that huge underground bunkers needed to be constructed as well as many reinforced surface buildings. Part of this project was the Centimetric Early Warning (CEW), it was supposed to be the first contact point with any attacking force. Eight CEW sites were constructed all over the country including the one on the Isle of Portland. The Portland CEW Radar Station was constructed between 1950 and 1951, the site came in to operation in 1953. The site consist of a single story, underground operations block, access to this underground area was from a purpose built bungalow on the surface, this was a reinforced concrete building with a local Portland stone finish. The bungalow housed a lift shaft which also had an iron staircase winding around it. There was also an emergency exit which was fitted with a ladder, this surfaced in a small building which also double as ventilation and a transformer house. Many changes were made to the bunker by the MOD in recent years to make it safe for the public before several open days during the sale of the site in 2001. After auction the site is now in private ownership, partly used by telecommunications companies as a ground base.
New to Nettleden?
Join our gang of urban explorers, get started by creating your free account...
- The secret sights of London
Discover abandoned and long forgotten secret bunkers, hideouts and derelict building in London.
- Secret underground bunkers in the UK
Discover some of the UK government's best kept secrets. From a little known hidden nuclear bunker Wiltshire to the huge active secret bunker right under Central London.
- Royal Observer Corps posts
ROC was given the responsibility of reporting nuclear attacks from hundreds bunkers across UK.
- Corsham quarries
A list of the quarries in and around Corsham.
- Disused London Underground stations
A list of disused stations on the London Underground.
- Brean Down Fort
The fort was built between 1864 and 1871 on the recommendations of the 1859 Royal Commission. Originally armed with seven 7" RMLs, it was disarmed in 1901, but rearmed with two 6" ex-naval guns during World War II. Recently restored and opened to the public by the National Trust.