WBN, KVA Schagen, Stp.Gr. Castricum, Bpt. 59 Nachrichten Bau.
In Alkmaar there are two bunkers located, a 616 and a 617, both bunkers are communication bunkers.
The 616 is located in a park near the MCA (Medisch Centrum Alkmaar) at the Kennemerstraatweg. The bunker is closed.
The other bunker, a 617, is located at the Kennemerpark in the flower store "t Singeltje". The bunker can be entered, but first ask the owner for permission.
1x 616 Large switch board.
1x 617 Communication post for telephone exchanges.