https://declassified.library.utoronto.ca/files/original/891db0caf18c0c816f21eb2c545c6470.pdf 871a24290b0a46fdbcc19168379bb9e6 PDF Text Text Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information --V, JIBTS 2 0 0 - 2 1 1 3 - 2 TOP SECRET CANADIAN EYES ONLY ATOMIC VULNERABILITY STUDY OF CANADA THE CITY OF QUEBEC I f l»4 Object of the Study This i s one of a s e r i e s of reports on major Canadian c i t i e s and t a r g e t s which provide basic information on enemy c a p a b i l i t i e s t o cause damage to persons and to v i t a l points by atomic a t t a c k . This study is not concerned with the probab i l i t y t h a t such an enemy attack w i l l be made, II Definitions of Terms Used Ground Zero The point on the ground d i r e c t l y under the point of burst i n the a i r Aiming Point The point on the ground d i r e c t l y under the point where the bomb i s aimed to be b u r s t i n the a i r No Rescue No organised and trained rescue i s carried out, which means e f f e c t i v e l y t h a t only people who are not trapped or who can escape by t h e i r own e f f o r t s survive Seriously Injjured Lightly Injured - Hospitalized persons who would not r e p o r t t o work for a considerable period of time F i r s t Aid case who would be able to contribute to t h e i r work a few days a f t e r the attack Nighttime - The time during which people are i n t h e i r normal places of residence Daytime - The time during which people are a t t h e i r normal places of work r' III Sources of Basic Information (a) Population Information on the nighttime d i s t r i b u t i o n of populat i o n i s based on a r e d i s t r i b u t i o n of the 1951 census returns i n greater d e t a i l to show the population of individual c i t y blocks. This i s considered for the purpose of t h i s study a s u f f i c i e n t l y good approximation to the nighttime d i s t r i b u t i o n of population. I t has not been possible a t t h i s time to estimate the daytime d i s t r i b u t i o n of population. 000299 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET CANADIAN EYES ONLY - 2 - (b) V i t a l Points Information on V i t a l Points was taken from the 1952 L i s t of V i t a l Points, which i s the work of the Interdepartmental Committee on V i t a l Points , The l i s t for the Quebec area i s given i n Appendix "A". (c) S c i e n t i f i c Data Basic data on the effects of atomic bomb explosions on people and s t r u c t u r e s was prepared by the Defence Research Board (Scientifi c Adviser to the C i v i l Defence Co-ordinator). ]V Factors Considered i n Selecting Aiming Points for Study The effects of an a t t a c k on a c i t y vary widely with the location of the boirib b u r s t . As i t i s not considered practicable to study a l l possible points of b u r s t , a s e r i e s of aiming points have been selected which would give the maximum effect on population and on differen t groupings of v i t a l p o i n t s . The effects of an a t t a c k vary widely with the energy released by the bomb. As i t i s not possible to estimate the energy l e v e l of the bomb most l i k e l y to be used, separate e s t i mates were made for a bomb yielding the lowest probable energy and the highest probable energy. The effects on people also vary widely with circumstances of warning and r e s c u e . A s e r i e s of estimates were t h e r e fore made for d i f f e r e n t conditions of warning and r e s c u e . The estimates made for conditions WITH RESCUE are for i d e a l rescue conditions with organized and trained rescue teams, i n temperate climates and when the atomic attack i s unsupported by other weapons. In s p i t e of rescue e f f o r ts c a s u a l t i e s would tend t o wards •those given for NO RESCUE under severe winter conditions, or i f Chemical Warfare attack were combined with atomic attac k or i f the spread of f i r e were e x t e n s i v e . Conditions of v i s i b i l i t y would also a l t e r the effect of an a t t a c k . Poor v i s i b i l i t y would reduce the extent of f i r e and the number of r a d i a t i o n casualtie s and would have some e f f e c t on the chances of pinpointing the t a r g e t from the a i r . Al l calculations are based on an average clear day with a v i s i b i l i t y of about six m i l e s . For the c i t y of Quebec an Aiming Point was chosen t o give the maximum effect on the nighttime d i s t r i b u t i o n of popul a t i o n . Aiming Points were also chosen t o give the maximum effect on a l l v i t a l points considered c o l l e c t i v e l y for the lowest probable and the highest probable energy l e v e l s . In choosing Aiming Points t o give the maximum effect on the v i t a l points i n Quebec, v i t a l points a t Lauzon, well within range of an attack on Quebec, were considered as a u n i t with those i n Quebec. 000300 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET CANADIAN EYES ONLY - 3 The present study i s confined to the e f f e c t of a bomb delivered by an airborne v e h i c l e . I t i s possible t h a t Quebec, a Port City, with shipbuilding and repairin g among i t s major i n d u s t r i e s , would be an a t t r a c t i v e t a r g e t for an underwater b u r s t . A separate study w i l l be made of the effects of t h i s type of a t t a c k . Results of the Study of the City of Quebec A ni^ittime attack on t h i s c i t y by an a i r burst atomic bomb could r e s u l t i n casualties among $5 t o 70$ of the populat i o n for a 20 Kiloton Bomb, depending on conditions of warning and rescue* 75 to 95% for a 100 Kiloton Bomb; and s e r i o u s ly i n t e r r u p t the function of Quebec as a port and i t s i n d u s t r i a l output. An attack on the V i t a l Points of Quebec could cause widespread destruction t o these v i t a l points and cause c a s u a l t i e s among 15-30$ of nighttime population by a 20 Kiloton Bomb; and 70-90$ by a 100 Kiloton Bomb. (a) Effects on Population The effect of an attack on the nighttime population i s given i n Tables I and H for each Aiming Point and "for d i f f e r e n t conditions of warning and rescue, (b) Effects on V i t a l Points A summary of the effect on v i t a l points i s given i n Table I I I for each Aiming P o i n t. The extent of damage t o v i t a l points and the effect on t h e i r various functions i s also described below for each of the Aiming P o i n t s . The e f f e c t on other i n d u s t r i e s , which are not of s u f f i c i e n t importance to be included i n the V i t a l Points L i s t , i s more b r i e f l y described. �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOPjSECRET CANADIAN EYES ONLY - ii (c) Effect of an attack on each of the Aiming Points Effect on Aiming Point # 1 - Chosen to give maximum effect on population by a 20 Kiloton Bomb A nighttime attac k on t h i s Aiming Point could r e s u l t i n casualties among 5$ - 70$ of the population depending on conditions of warning and rescue (Tables I and I I ) > , As daytime population data i s not a t present available i t i s not possible t o calculate c a s u a l t i e s from a daytime a t t a c k . Damage t o v i t a l points i s described below: Arsenals and Munitions Canadian Arsenals Limited, Palace H i l l Plant - Buildings and contents t o t a l l y destroyed by a combination of b l a s t and f i r e . Shipbuilding and Repairing A l l components of t h i s industry of s u f f i c i e n t importance t o be included i n tlie V i t a l Points L i s t are located a t Lauzon, though other l e s s important f a c i l i t i e s are s i t u a t e d i n Quebec C i t y . Lorne Drydock ) Champlain Drydock ) - No damage Davie Shipbuilding and Repairing Company Limited ) George T, Davie and Sons Limited ) - No damage other than s u p e r f i c i a l to buildings and equipment. C ommunications B e l l Telephone Company, Main Telephone Exchange - Total damage to building and equipment by a combination of b l a s t and f i r e . Generation and Transmission of Hydro E l e c t r i c Power (a) The main e l e c t r i c power receiving s t a t i o n of Shawinigan Water and Power Company - No damage other than s u p e r f i c i a l to buildings and contents (b) E l e c t r i c power transmission l i n e r i v e r crossing of Shawinigan Water and Power Company over S t . Lawrence River No damage. Transportation Quebec Bridge - No damage This type of s t r u c t u r e i s quite r e s i s t a n t to an a i r b u r s t atomic bomb. If an Aiming Point were chosen t o demolish t h i s s t r u c t u r e , l i t t l e or no damage would r e s u l t to other V i t a l P o i n t s , and the number of c a s u a l t i e s would be small. Port of Quebec Damage not yet determined. 000302 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET CANADIAN EYES ONLY - 5Effect on Aiming Point # 1 - Chosen to give maximum effect on population by a 100 Kiloton Bomb A nighttime attack on t h i s Aiming Point could r e s u l t i n casualtie s among 75 - 9\% of the population depending on conditions of warning and rescue (Tables I and I I ) . As daytime population data i s not a t present available i t i s not possible t o calculate c a s u a l t i e s from a daytime a t t a c k . Damage t o v i t a l points i s described below: Arsenals and Munitions Canadian Arsenals Limited, Palace H i l l Plant - Buildings and contents completely destroyed by a combination of b l a s t and f i r e . Shipbuilding and Repairing Lorne-Drydock ) Champlain Drydock ) - No damage, but affected by the following damage to other shipbuilding p l a n t s , Davie Shipbuilding and Repairing Company Limited ) George T. Davie and Sons Limited ) Although there i s only s l i g h t p o s s i b i l i t y of f i r e , damage from b l a s t would be so extensive t h a t the buildings would have to be t o r n down. I t i s probable, however, t h a t a large percentage of equipment could be salvaged. Congriunications Bell Telephone Company, Main Telephone Exchange - Building and equipment t o t a l l y damaged by a combination of b l a s t and f i r e . Generation and Transmission of Hydro E l e c t r i c Power (a) The main e l e c t r i c power receiving s t a t i o n of Shawinigan Water and Power Company - There i s a p o s s i b i l i t y t h a t a serious f i r e might occur. In any c a s e , b l a s t alone would cause s t r u c t u r a l damage t o the building to an extent t h a t major r e p a i r s would be required. If no serious f i r e occurred, about 75$ of equipment could be salvaged. (b) E l e c t r i c power transmission l i n e r i v e r crossing of Shawinigan Water and Power Company over S t . Lawrence River No damage. Transportation Quebec Bridge - No damage. Port of Quebec Damage not yet determined. 000303 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET CANADIAN EYES ONLY - 6 Effect on Aiming Point # 2A - Chosen to give maximum effect on V i t a l Points by a 20 Kiloton Bomb A nighttime attack on t h i s Aiming Point could r e s u l t i n casualties among 15 - 3C$ of the population depending on conditions of warning and rescue (Tables I and I I ) . As daytime population data i s not a t present available i t i s not possible to calculate c a s u a l t i es a r i s i n g from a daytime a t t a c k except for those specific points for which information i s given below. Damage t o V i t a l Points i s described below: Arsenals and Munitions Canadian Arsenals Limited, Palace H i l l Plant - Damage by b l a s t alone t o buildings and contents would be extensive and serious f i r e l i k e l y t o occur. The l e s s e r damaged buildings would require extensive r e p a i r and several buildings would have to be t o r n down. Approximately 30$ to 65$ of s h i f t on duty would be k i l l e d or s e r i o u s l y i n j u r e d . Shipbuilding and Repairing Lome Drydock ) Champlain Drydock ) - No damage but affected by the following damage to other shipbuilding p l a n t s . Davie Shipbuilding and Repairing Company Limited ) George T. Davie and Sons Limited ) Although the p o s s i b i l i t y of f i r e i s small, damage by b l a s t alone would destroy the b u i l d i n g s . Much equipment and machinery could be salvaged. Approximately 10$ t o 15$ of the s h i f t on duty would be k i l l e d or s e r i o u s l y injured. C ommunications Bell Telephone Company, Main Telephone Exchange - The p r o b a b i l i t y of f i r e i s high. I f f i r e were controlled , however, b l a s t damage would be so extensive t h a t major r e p a i r s would be required before building could be used. Damage to equipment would be high. Approximately 30$ t o 65$ of the s h i f t on duty would be k i l l e d or seriovisly injured. Generation and Transmission of Hydro-Electric Power (a) The main e l e c t r i c power receiving s t a t i o n of Shawinigan Water and Power Company - No damage other than s u p e r f i c i a l to building and equipment. (b) E l e c t r i c power transmission l i n e r i v e r crossing of Shawinigan Water and Power Company over the S t . Lawrence River - No damage. Transportation Quebec Bridge - No damage. Port of Quebec Damage not yet determined. 000304 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET CANADIAN EYES ONLY - 1Effect on Aiming Point ,# 2B - Chosen to give maximum effect on V i t a l Points by a 100 Kiloton Bomb A nighttime a t t a ck on t h i s Aiming Point could r e s u l t i n casualties amorig 70 - 90$ Of the population depending on condition of warning ahd rescue (Tables I and I I ) . As daytime population data i s not a t present available I t i s not possible t o calculate c a s u a l t i e s a r i s i n g from a daytime a t t a ck except for those specific points for which information i s given below. Damage t o V i t a l Points i s described below: Arsenals and Munitions Canadian Arsenals Limited, Palace H i l l Plant - Buildings and contents t o t a l l y damaged. Approximately 85$ t o 90$ of s h i f t on duty would be k i l l e d or s e r i o u s l y injured. Shipbuilding and Repairing Lorne Drydock J~~^ Champlain Drydock ) - No damage but affected by the following damage to other shipbuilding p l a n t s , Davie Shipbuilding and Repairing Company Limited ) George T. Davie & Sons Limited ) Although the p o s s i b i l i t y of f i r e i s small, damage by b l a s t alone would destroy the b u i l d i n g s. Much equipment and machinery could be salvaged. Approximately 10$ to 15$ of the s h i f t on duty would be k i l l e d or s e r i o u s l y injured. C ommunications Bell Telephone Company, Main Telephone Exchange - Building and contents t o t a l l y damaged. Approximately 85$ to 90$ of s h i f t on duty would be k i l l e d or s e r i o u s l y injured. Generation and Transmission of Hydro-Electric Power (a) The main e l e c t r i c power receiving s t a t i o n of Shawinigan Water and Power Company - Building destroyed. L i t t l e salvage of equipment could be expected. Approximately 15$ t o 30$ of s h i f t on duty would be k i l l e d or s e r i o u s l y injured, (b) E l e c t r i c power transmission line r i v e r crossing of Shawinigan Water and Power Company over the S t . Lawrence River - No damage. Transportation Quebec Bridge - No damage. Port of Quebec Damage not yet determined, 000305 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET CANADIAN EYES ONLY - 8 - (d) Effect on Industrie s which are not on the V i t a l Points L i s t Although an attack on population and V i t a l Points i s the important aspect i n considering an attack on Quebec, indust r i e s and f a c i l i t i e s of considerable l o c a l importance w i l l a l s o be damaged. The effect on some of the most important of these other points i s discussed below. Petroleum F a c i l i t i e s Shell Oil Canadian Oil Imperial Oil B r i t i s h American McColl Frontenac Dominion Oil 20 Kiloton 100 Kiloton No damage No damage No damage No damage Serious damage No damage No damage No damage Serious damage Serious damage Destroyed No damage Pulp and Paper Anglo Canadian Pulp and Paper Mills Limited - Damage would be extensive for a l l aiming points considered. Shipbuilding and Repairing S t . Lawrence Metal and Marine Works - This plant would receive severe t o t o t a l damage for a l l aiming p o i n t s . Communications Bell Telephone, Branch Offices - As a whole the Branch offices of the Bell Telephone would receive considerable damage. Damage to individual branches v a r i e s with t h e i r l o c a t i o n , ( e ) Effects on Morale I t i s expected t h a t the e f f e c t on morale i n large centres of population i n Canada, and a t l e a s t the northern parts of the United S t a t e s , would be much the same whichever c i t y i s attacked by an atomic bomb. The effect w i l l probably be somewhat proportionate t o the s i z e of the c a s u a l t i e s i n f l i c t e d by individual bombs and by the number of c i t i e s attacked. Air Navigation Aspects of an Attack With the equipment a t present available to the Russian Long Range Air Force, Quebec City would not be a d i f f i c u l t t a r g e t t o locate under any weather conditions for a well trained navigator not familiar with the a r e a . Accuracy i n identifying specific aiming points i n Quebec i s a more c r i t i c a l aspect. The v i t a l points i n Quebec and Lauzon are so d i s t r i b u t e d t h a t the Aiming Point giving maximum damage t o a l l v i t a l points considered c o l l e c t i v e l y i s small, and the effect on a l l v i t a l points considered c o l l e c t i v e l y 000306 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET CANADIAN EYES ONLY - 9 would f a l l off rapidly as the distance of Ground Zero from the chosen Aiming Points i s increased. This i s p a r t i c u l a r l y evident i f the lowest probable energy l e v e l bomb i s used and i s true for population as well as for V i t a l Points. At the present time there i s no s a t i s f a c t o r y comp l e t e l y airborne means of pinpointing a t a r g e t within a large c i t y , except v i s u a l l y . In the case of bombing by radar over cloud coverage, the c i t y of Quebec as a whole would have t o be used as the t a r g e t . In the case of Quebec t h i s would be l i k e l y to r e s u l t i n less c a s u a l t i e s and damage to v i t a l points than i s described i n t h i s r e p o r t , p a r t i c u l a r l y if a smaller bomb were used. 000307 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET TABLE I - CASUALTY ESTIMATES - Q.TJEBEC CITY CANADIAN EYES ONLY NIGHTTIME ATTACK 100 K i l o t o n Bomb 20 K i l o t o n Bomb Aiming P o i n t # 1 - Chosen t o Give Maximum Effect on P o p u l a t i o n Aiming P o i n t # 1 - Chosen t o Give Maximum E f f e c t on P o p u l a t i o n Killed Seriously Injured Lightly Injured Killed Seriously Injured Lightly Injured No Warning - No Rescue 99,900 18,900 11,200 No Warning - No Rescue 137,200 15,100 7,400 No Warning - With Resoue 67,900 33,400 16,900 No Warning - With Rescue 102,600 32,800 13,700 With Warning - With Rescue 54,800 26,000 18,400 With W a r n i n g - With Rescue 87,800 25,100 14,500 Aiming P o i n t $2A - Chosen t o Give Maximum E f f e c t on V i t a l P o i n t s f o r a 20 .Kiloton 3omb Aiming P o i n t #2B - Chosen t o Give Maximum Effect on V i t a l P o i n t s f o r a 100 K i l o t o n Bomb 131,000 16,500 8,700 No Warning - With Rescue 93,800 35,400 15,800 With Warning - With Rescue 78,200 28,900 15,700 No Warning - No Rescue No Warning - No Rescue 19,000 15,900 13,400 No Warning - With Rescue 6,200 19,000 15,100 With Warning - With Rescue 3,900 11,400 9,900 000308 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET TABLE I I - CASUALTIES AS PERCENTAGE OF POPUIATEON & CANADIAN EYES ONLY NICHTTIME ATTACK 100 Kiloton 20 Kiloton Aiming Point ftl - Chosen t o Give Maximum Effect on Population Aiming Point ftl - Chosen t o Give Maximum Effect on Population Killed Seriously Injured Lightly Injured No Warning - No Rescue 55 10 5 No Warning - With Rescue 40 20 With Warning - With Rescue 30 15 No Warning - With Rescue With Warning - With Rescue Seriously Injured Lightly Injured No Warning - No Rescue 80 10 5 10 No Warning - With Rescue 60 20 10 10 With Warning - With Rescue 50 15 10 Aiming Point #2A - Chosen t o Give Maximum Effect on V i t a l Points for a 20 Kiloton Bomb No Warning - No Rescue Killed Aiming Point #2B - Chosen t o Give Maximum Effect on V i t a l Points for a 100 Kiloton Bomb 10 10 10 No Warning - No Rescue 75 10 5 5 10 10 No Warning - With Rescue 55 20 10 75 5 5 With Warning - With Rescue 45 15 10 & Based on 176,000 - within 5 miles of t h e Aiming Point. The population of the metropolitan area i s 274,800 of t h e c i t y proper i s 164,000 000309 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TCP SECRET T.ABLE I I I - SUMMARY OF EFFECTS ON VITAL POINTS CANADIAN EYES ONLY Aiming P o i n t # 1 - Chosen t o Give Maximum E f f e c t on P o p u l a t i o n f o r a 20 K i l o t o n Bomb V i t a l Poin t V i t a l Point Category Structural Damage by B l a s t (f<>) Probability of F i r e Damage t o Contents With F i r e No F i r e None Main e l e c t r i c power r e c e i v i n g s t a t i o n of Shawinigan Water and Power Co, B e l l Telephone Co. Main Telephone Exchange 75 - 100 High Canadian A r s e n a l s L i m i t e d , P a l a c e H i l l Plant 75 - 100 High 75 - 100 100% h approx, 75% qaprox, Davie S h i p b u i l d i n g and R e p a i r i n g Co, L t d , A 0 None 0 Geo, T, Davie & Sons L t d . B 0 None 0 Chaaplain Drydock A Lome Diydock A Quebec. B r i d g e A E l e c t r i c power t r a n s m i s s i o n l i n e r i v e r c r o s s i n g of Shawinigan Water and Power Co# over t h e S t , Lawrence River A 000310 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'informatioi TOP SECRET TABLE I I I - SUMMARY OF EFFECT ON VITAL POINTS CANADIAN EYES ONLY Aiming P o i n t # 1 - Chosen t o Give Maximum E f f e c t on P o p u l a t i o n for a 100 K i l o t o n Bomb V i t a l Point V i t a l Point Category Stiuctural Damage by B l a s t (fo) Probability of F i r e Damage t o C o n t e n t s With F i r e No F i r e Main e l e c t r i c power r e c e i v i n g " s t a t i o n of Shawinigan Water and Power Co, A 25 - 50 Medium 75% a p p r o x . 25% approx . B e l l Telephone Co, Main Telephone Exchange A 100% High 100% 75 - 100 Canadian A r s e n a l s Limited, P a l a c e H i l l Plant A 100% High 100% 75 - 100 Davie S h i p b u i l d i n g and Repairing Co, A 50 - 75 Low 75 - 100 25% gpprox. Geo, T. Davie & Sons L t d . B 50 - 75 Low 75 - 100 25% epprox. Lome Drydock A 0 Champ l a i n Drydock A 0 Quebec B r i d ge A 0 0 E l e c t a ! c power t r a n s m i s s i o n l i n e r i v e r c r o s s i n g of Shawinigan Water and Power Co, over t h e S t , Lawrence River A 0 0 000311 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sdr I'acces a I'informatiot TOP SECRET TifflLE I I I - SUMMARY OF EEFECT ON VITAL POINTS CANADIAN EYES ONLY Aiming P o i n t ?f2A V i t a l Point Chosen t o Give Maximum E f f e c t on V i t a l P o i n t s f o r a 20 K i l o t o n 3omb V i t a l Point Category Structural Damage b y B l a s t (fo) Probability of F i r e Damage t o C o n t e n t s With F i r e No F i r e 0 None Main e l e c t r i c power r e c e i v i n g s t a t i o n of Shawinigan Water and Power Company A B e l l Telephone Co, Main Telephone Exchange A 25 - 50 High 100% 50% epprox. Canadian Arsenals L i m i t e d , P a l a c e H i l l Plant A 25 - 50 High 100% 50% appro:?.. Davie S h i p b u i l d i n g and R e p a i r i n g Co. A 50 - 75 Low - 100 25% a p p r o x . Geo. T. Davie & Sons L t d . B 50 - 75 Low - 25% approx. C h a n p l a i n Drydock A 0 Lome Drydock A 0 Quebec Bridge A 0 0 E l e c t r i c power t r a n s m i s s i o n l i n e r i v e r c r o s s i n g of Shawinigan Water and Power Co, over t h e S t . Iawrence River A 0 0 100 000312 �Document disclosed under the Access to Information Act Documentdivulgue en vertu de la Loi sur I'acces a I'in' TOP SECRET TABLE I I I - SUMMARY OF EFFECT ON VI TAL POINTS CANADIAN EYES ONLY Aiming P o i n t #2B - Chosen t o Give Maximum E f f e c t on V i t a l P o i n t s f o r a 100 K i l o t o n Bomb V i t a l Point i t a l Points Category Stru c t u r a l Damage by B l a s t (fo) Probability of F i r e Damage t o Contents With F i r e No F i r e 75 - 100 50 - 75 Main e l e c t r i c power r e c e i v i n g s t a t i o n of Shawinigan Water and Power Co. A 75 - 100 High B e l l Telephone Co. Main Telephone Exchange A 75 - 100 High 100% 75 - 100 Canadian -Arsenals L i m i t e d , P a l a c e H i l l Plant A 100% High 100% 75 - 100 Davie S h i p b u i l d i n g and Repairing Co. A 50% approx. Low 75 - 100 25% a p p r o x. Geo. T, Davie and Sons L t d . B 50-75 Low 75 - 100 25% approx. Chanplain Drydock A Lome Drydock A Quebec Bridge A 0 0 E l e c t r i c power t r a n s m i s s i o n l i n e r i v e r c r o s s i n g of Shawinigan Water and Power Co, over t h e S t . Lawrence River A 0 0 000313 �Document disclosed under the Access to Information Act Document divulgue en vertu de la Loi sur I'acces a I'information TOP SECRET CANADEAN EYES ONLY APPENDIX "A" - STUDY OF CITY OF QUEBEC F o r t h e C i t y of Quebec t h e l i s t of V i t a l P o i n t s as determined b y t h e I n t e r d e p a r t m e n t a l Committee on V i t a l P o i n t s i s as follows: Main e l e c t r i c power r e c e i v i n g s t a t i o n of Shawinigan Water and Power Co, E l e c t r i c power t r a n s m i s s i o n l i n e r i v e r c r o s s i n g of Shawinigan Water and Power Co, over S t , Lawrence R i v e r B e l l Telephone Company, main t e l e p h o n e exchanges Quebec Bridge over S t . Iawrence R i v e r (Charny) Canadian A r s e n a l s L i m i t e d , P a l a c e H i l l P l a n t Davie S h i p b u i l d i n g and R e p a i r i n g Co. L t d , (Iauzon) Champ l a i n Drydock (Lauzon) Lome Drydock (Iauzon) George T. Davie and Sons Limited (Iauzon) 000314 � Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Identifier An unambiguous reference to the resource within a given context CDIM02634 Title A name given to the resource Report, "Atomic Vulnerability Study of Canada, The City of Quebec" Date A point or period of time associated with an event in the lifecycle of the resource 1953-01-14 Source A related resource from which the described resource is derived Nuclear Vulnerability Study, RG25, Vol. 4563, File 50041-A-40, Part 1, LAC. Creator An entity primarily responsible for making the resource Department of External Affairs Rights Information about rights held in and over the resource Canadian Crown Subject The topic of the resource Early Cold War, Atomic Vulnerability Description An account of the resource Atomic Vulnerability Study Panel, Ottawa Publisher An entity responsible for making the resource available Canada Declassified Type The nature or genre of the resource Text Format The file format, physical medium, or dimensions of the resource PDF Language A language of the resource en