Chief of Station, L KCOLN
Operational Sab Task
Attached hereto la supplement to oab inetruotions to be paaeed to ONTRJOI.
1 page aa above
C tt la dupl.tttt
Supplement to Seb Instructions for target "CHET Bridge* (ADAM Support).
CHET Bridge le oonntructed ofeams whichhese rest upon concrete abuttmentsoncrete center support. To destroy tola bridge thirty blocks of TNT ahould be placed upon each ofeams io th* manner shown ln the sketch and photo. The charges ahould be placed Just off from tha canter concrete support so that whan they outeam* th* section of the bridge will fall. The charges should bo connected together in series and fired by moans of so electric blasting machine almultaneoualy. Ia the event that th* electric system falls, non-electrio detonators should be employed and fused so that they fire aa nearly aa possible at the seme time.
Team aan work eitheroat or bettor from the bridge Itself. The approach to the bridge la recommended froa the North (from the village of MOHAN). There Is considerable activity in the form ofto. during the night and oare must be taken to avoid detaotlon.Original document.