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LaSalle Heights disaster

LaSalle Heights disaster is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand LaSalle Heights disaster rather than just read about it. In short: The LaSalle Heights disaster occurred in the early morning of March 1, 1965, in the city of LaSalle, Quebec when a gas line explosion destroyed a number of low-cost housing units. In all, 28 people were killed, 39 were injured and 200 left homeless.

Key takeaways

  • LaSalle Heights disaster belongs to physics; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect LaSalle Heights disaster to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of LaSalle Heights disaster from memory before moving on to harder problems.

Reference excerpt

The LaSalle Heights disaster occurred in the early morning of March 1, 1965, in the city of LaSalle, Quebec when a gas line explosion destroyed a number of low-cost housing units. In all, 28 people were killed, 39 were injured and 200 left homeless. Most of the casualties were women and children.

LaSalle Heights LaSalle Heights is a suburban residential block of low-income rental units located at the corner of rue Bergevin and rue Jean Milot in LaSalle, Quebec, on the Island of Montreal. It was constructed by LaSalle Heights Inc. in 1955 and 1956 at a cost of $5,300,000. In 1955 construction was announced and the site was expected to consist of 678 units (54 three-bedroom houses in rows, 422 three-bedroom apartments, 136 two-bedroom apartments, 50 one-bedroom apartments, and 16 bachelor apartments). Rents ranged from $30 a month to $57 a month and were available to families whose monthly income ranged between four and six times their rent.

The block consisted of 25 identical U-shaped buildings, each housing 36 units of various sizes.

Explosion At approximately 8:05 am a six-inch (150 mm) fissure emerged in a natural gas supply line in the cellar of 367 rue Bergevin, destroying units in it along with those in buildings 365, 363 and 361. Approximately 36 units were affected. The explosion left a 20-foot-deep (6.1 m) crater where the three-story apartment building had stood. During subsequent inquiries on the incident, metallurgists André Hone and William Williams concluded that a cracked pipe, most likely damaged during transportation or installation, was the cause of the explosion.

Casualties At 10 pm on the evening of the explosion, Coroner Marcel Trahan released some names of the known dead. On March 3 a more complete list was released. At the time, four people were still missing and one deceased victim was unidentified.

Deaths

0365 rue Bergevin Nancy McGuigan (née Margret Nancy Green) (age 31) and her children Gordon (age 12), Caroline (age 10), and Warren (age 13 months) Vera Peard (née Veronica Marion Costello) (age 39) and her children Kevin (age 2), Dianne (age 6), and Sharon (age 9) Mary Czopko and her daughters Brenda (age 5) and Johanne (age 7) James Dyer (age 35), a roomer with the Czopko family Jean Marc Thibeault (age 44) and Mrs. Jean Marc Thibeault (age 51) Louis Bischoff (age 44)

0367 rue Bergevin Donna, Vera, and Anne-Marie Rehanek (age 8, 5, and 2 respectively) Emma Arsineau (age 50) Marielle Quesnel (age 33) Mrs. John Chalmers and her daughter Debra-Ann (age 3)

Other addresses Sandra Dawson (age 3), granddaughter of Emma Arsineau Marc Anthony Fernando (3 months old) Sheila Jones (age 1) Gail Sylvia (age 16) Heather Sylvia (age 10) Donna Sylvia (age 4)

Injured Danny Silver (age 8) - nose fracture, cuts Sharon Silver (age 10) - leg fracture, cuts Diane Silver (age 3) - under observation Laura Silver (age 4) - contusions Louis Lajoie (age 8) - contusions Mary Czopko (age 32) - broken back (mistakenly declared dead on day of blast. Died on March 26, 1965) Norman Czopko (9 months) - legs fractured, contusions Gary Czopko - contusions Leean Jones (age 2) - contusions Susan Peard (age 13) - multiple fractures and contusions Mrs. James Ilacqua - cuts and contusions Mrs. James Dawes - contusions Albert Rehanek - burns and contusions Selma Ryce Rehanek - burns and cuts Antonio Ciarlo - contusions, burns, serious condition Helmute Wiet - multiple fractures, burns Wayne McGuigan (son of Nancy, age 3) had to break leg to get out of stairwell An additional 23 injured people were named in the March 3, 1965 Gazette but no additional details were provided. Andrew Silver - broken legs, broken arm, partially fractured skull

Response By 8:25 am the LaSalle fire department, along with a number of naval officers from a nearby barracks descended on the site. By the afternoon, premier Jean Lesage and multiple deputies and ministers arrived to assess the damage. In the days following a foundation was created for the victims and a radio and television telethon took place. Approximately $600,000 was raised in the effort. Queen Elizabeth letter's stated: "I am most deeply distressed to learn of the tragic accident which has taken place in Ville LaSalle. Please convey my sincere sympathy to the mayor, to the injured, and the next-of-kin of those who have lost their lives. Elizabeth R." - March 3, 1965 The Central Mortgage and Housing Corporation along with the minister in charge of the Canadian government's housing program made approximately 60 vacant house available for the more than 200 left homeless from the disaster. Rent was provided free for two months. In November of that year Herbert Peard launched a lawsuit against Quebec Natural Gas Corporation. Peard's wife of 15 years and his three children were among those who died. The $85,000 lawsuit included a claim of $21,000 on behalf of his only remaining child Susan, who was seriously injured in the blast. On March 29, 1965, LaSalle Heights Inc. announced any or all tenants of the LaSalle Heights Housing Development were allowed to break their lease if they wanted. In February 1967, LaSalle Heights Inc. filed a $853,275 lawsuit against Quebec Natural Gas Corporation.

50th anniversary commemoration The Borough of LaSalle organized a number of activities in 2015 to honour the victims' memory:

All LaSalle churches were invited to commemorate the event as part of their Sunday service on March 1, marking the exact date of the 50th anniversary. A resolution was adopted and a minute of silence observed during the Borough Council meeting on March 2, the day after the anniversary of the disaster. The Borough granted financial assistance of $3,000 to the Société historique Cavelier-de-LaSalle, to write a monograph on the LaSalle Heights Disaster. The Borough organized an exhibition on the tragedy, including photos from archives and newspaper articles. A public square at Boulevard LaSalle and Rue Lyette, near the borough hall, was named Place du 1er-Mars-1965 after the date of the explosion, and a commemorative stela was erected as a memorial to this explosion and to another one that had occurred in the same neighbourhood on 28 August 1956.

References

Worked examples

Example 1 — a first encounter with LaSalle Heights disaster

Start with the simplest possible case. Write down what LaSalle Heights disaster claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to LaSalle Heights disaster before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about LaSalle Heights disaster ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of LaSalle Heights disaster

In research
LaSalle Heights disaster appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses LaSalle Heights disaster in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
LaSalle Heights disaster is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1965 explosions, 1965 in Canada, 1965 in Montreal, so understanding it makes those chapters shorter.
In everyday life
Look for LaSalle Heights disaster outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study LaSalle Heights disaster in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what LaSalle Heights disaster means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain LaSalle Heights disaster out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is LaSalle Heights disaster in simple terms?

The LaSalle Heights disaster occurred in the early morning of March 1, 1965, in the city of LaSalle, Quebec when a gas line explosion destroyed a number of low-cost housing units. In all, 28 people were killed, 39 were injured and 200 left homeless.

Why does LaSalle Heights disaster matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study LaSalle Heights disaster?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on LaSalle Heights disaster.

Tags

  • 1965 explosions
  • 1965 in Canada
  • 1965 in Montreal
  • 1965 industrial disasters
  • Disasters in Quebec
  • Energy accidents and incidents in Canada
  • Energy in Quebec
  • Environmental disasters in Canada
  • Industrial fires and explosions in Canada
  • LaSalle, Quebec
  • March 1965 in North America
  • Natural gas in Canada

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