English Translation

I 1150/45-4. I n f o r m a t i o n . Air protection room for the President. In agreement with the Air Protection Command of the Police Bureau in Prague and after evaluation of the Antes for soil research for Böbnen and Mihren, the place on the north side of the castle in Lana was considered suitable for the construction of an underground concrete air protection room. The company Zárube- Pfeffermann in Prague was commissioned to carry out the study of the terrain, the probes have shown that there is a depth of 6.l0 m of water and that the earth layers under this water surface are so water-permeable that at the depth of 2l m any work would still be almost impossible, the company, in agreement with the representative of the Office of Soil Research, has declared the next mess of the castle unsuitable for the construction of an underground air-raun. At present, the President of the Republic is accommodated in the room of the telephone headquarters, which has been secured against splinter danger, in case of air danger on the ground floor.