The Cambridgeshire County Council Cold War Emergency Headquarters Bunker was situated under the council offices in Cambridge city centre, it is a single story structure at the basement level built alongside the carpark in 1987. It has a soil mound on top and was a replacement to the original emergency centre which was in the basement of nearby Shire Hall.

After it was decommissioned as a “Nuclear Bunker” it became a generic Emergency Centre used for various large incident in the 90s and now it is used as a store for the Natural & Historic Environment department.

Council staff would have entered the bunker using the internal stairways from the offices down through the carpark and from there through the blast doors.

Once in the lobby they would be signed in at the reception desk before proceeding to their designated rooms, The generator and plant rooms are on the left as you enter, the generator itself is noticeably small and I’m told it wasn’t actually powerful enough to run the entire bunker.

There is one corridor that runs the length of the bunker and all the other rooms come off this, as usual the operations room is the largest and at the far end are the toilets and showers.

Beyond the toilets is an Exit lobby, this would also have served as an entrance for people entering after the bunker was “activated”, there would have been a small decontamination shower located here.

I have made a 360 Degree virtual tour of the bunker https://iamanerd.org.uk/360/cambridgeshire-county-council-emergency-hq/ and below are a few photos from my visit.

Thankyou to the Cambridgeshire County Council Natural & Historic Environment department for facilitating my visit.