York Historic Environment Record

The bunker beneath the ROC station has been retained with access through a hinged carpeted hatch in the middle of the hall. The internal ladder has been removed and there is a small aluminium ladder in its place. The post now has an electric supply and is used for storage including a wine rack. All the furniture has been removed but some of the original features have been retained including the WB1401 carrier receiver and WB1410 filter unit, the original light, cluster maps and some papers. Bunker located underneath 141 Broadway at the North side of the junction of Broadway and Heslington Lane. NGR SE61784980.

NMR Information

A Royal Observer Corps underground monitoring post built during 1973 to replace an earlier post destroyed by the A64 York ring road. The post remained operational until the `stand-down' of the UK Warning and Monitoring Organisation (UKWMO) in September 1991.

Full description
SE 6169 4982. Underground Monitoring Post. Its access hatch stands 0.9m above the ground level and is flanked by an outlet air vent, which is surmounted by a steel mushroom Ground Zero Indicato (GZI)
mounting plate. A hinged steel plate covers the access shaft which is 0.68m wide and 4.26m deep, a steel ladder is fitted to the wall of the shaft. The underground post consists of a 6.1m x 2.9m x 2.9m
rectangular reinforced concrete chamber with 0.3m thick floor, walls and roof. It is subdivided into he access shaft, a toilet/store, and the post-room. A ventilator in the end wall of the post rises
to the air vent, which stands 0.81m above ground level, equipped with fallout baffle lourves. Situated between the access hatch and the air vent, two pipes rise up through the ground: a 19mm diameter Bomb Power Indicator (BPI) pipe and a 102mm diameter flanged galvanised steel Fixed Survey meter (FSM) probe tube.

The post has been photographically recorded: Job No. 91/3156, Negs. AA92/2515-AA92/2556. (1-1c)

Defence of Britain Non invasion database number 5232. (2)

Sources
1 Oral information, correspondence (not archived) or staff comments Roger J C Thomas/29-JUN-1998/RCHME: Cold War Project
2 Migrated Defence of Britain Project database record originally compiled from various sources
Original hard copy recorders forms and photographs are in NMR archive but are not currently individually catalogued. The two databases developed by the Project can be searched on-line through the Archaeology Data Service at http://ads.ahds.ac.uk/catalogue/specColl/dob/index.cfm
1a VIRTUAL CATALOGUE ENTRY TO SUPPORT NAR MIGRATION Wood D, 1992 Attack Warning Red, Carmichael and Sweet (318)
1b VIRTUAL CATALOGUE ENTRY TO SUPPORT NAR MIGRATION DoBinson C, 1998 Twentieth Century Fortifications in England, Vol XI 1+2, The Cold War, CBA
1c VIRTUAL CATALOGUE ENTRY TO SUPPORT NAR MIGRATION UKWMO, 1989 Royal Observer Corps Schedule of Monitoring Posts, HQ ROC (21)

1444724 Measured Survey THE DEFENCE OF BRITAIN PROJECT

Related Archives/Objects

DEB01 Defence of Britain This material has not yet been fully catalogued. Copyright, date, and quantity information for this record may be incomplete or inaccurate.Box files containing the record sheets gathered from participants in the Defence of Britain Project.

People and Organisations
Archaeological Field Investigator ROGER THOMAS RCHME York 1992-01-01 1992-01-01 RCHME staff: York (Audit Group: SURVEY)
Compiler WAYNE COCROFT RCHME Cambridge Archaeology 1998-07-13 1998-07-13 RCHME staff: Keele 1986-97, Cambridge 1997-present (Audit Group: SURVEY)
Photographer ROGER THOMAS RCHME York 1992-01-01 1992-01-01 RCHME staff: York (Audit Group: SURVEY)

NMR, 2019, NMR data (Digital archive). SYO2214.