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Leslie Street Spit

Leslie Street Spit is a science 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 Leslie Street Spit rather than just read about it. In short: The Leslie Street Spit, or officially the Outer Harbour East Headland, is a human-made headland in Toronto, Ontario, Canada, extending from the city's east end in a roughly southwesterly direction into Lake Ontario. It is about 5 kilometres (3 mi) long.

Leslie Street Spit — main illustration
Leslie Street Spit — illustration

Key takeaways

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

Reference excerpt

The Leslie Street Spit, or officially the Outer Harbour East Headland, is a human-made headland in Toronto, Ontario, Canada, extending from the city's east end in a roughly southwesterly direction into Lake Ontario. It is about 5 kilometres (3 mi) long. The Spit is the result of five decades of lakefilling by the Toronto Port Authority. It was conceived as an extension of Toronto Harbour, and has evolved into a largely passive recreation area. Naturalization had not been planned but the process is now actively managed by the Toronto and Region Conservation Authority. A large portion of it is classified as an Environmentally Sensitive Area (ESA) and it is recognized as an Important Bird Area. Its common name is technically incorrect, since it is not truly a spit, but Torontonians almost never use the official name. The road running along the peninsula is a southern extension of Leslie Street, hence the popular nickname. The Canadian musical group Leslie Spit Treeo, prominent in the 1990s, took its name from Leslie Street Spit.

History

The Spit is a man-made landfill that began in the 1950s when the Toronto Harbour Commission began a project to create a breakwater for Toronto's Outer Harbour. It was part of a plan to expand the capacity of the harbour in anticipation of an expected increase in shipping traffic on the Great Lakes after the Saint Lawrence Seaway opened in 1959. However, owing to the containerization revolution of the 1960s, cargo traffic began to shift to East Coast ports, and shipping volumes in Toronto fell by almost half between 1969 and 1973. Thus, the need for an outer harbour never arose, and all cargo ships calling at Toronto still use the Inner Harbour, while the Outer Harbour sees only pleasure boat traffic. The spit is a man-made successor of a natural sand bar / peninsula that existed to the north before infilling of Port Lands and connected to Toronto Islands before 1858. While the original need for the landform was eliminated, the site continued to receive excavation and construction waste from the building of Toronto's subways, office towers and other large projects. In the late 1970s, dredgeate from the nearby Keating Channel was also dumped on the emerging spit, which was seen as a better solution than dumping the polluted material into open water. Dredging is an ongoing process and PortsToronto continues to dump silt and mud in the Spit's embayments. In the early 1970s, the Spit was one of up to a dozen landfill parks across the Toronto-area shoreline planned by the Toronto and Region Conservation Authority (TRCA, but then known as the Metropolitan Toronto Regional Conservation Authority). It began as a long, slender finger of bare land stretching out into the lake, and developed several lobes enclosing small bays. It was eventually colonized by a variety of plant life.

Development plans and political challenges

The provincial government gave the TRCA the mandate to develop parks, beaches and recreation areas along the waterfront from Mississauga to Ajax. This was referred to as the Metro Waterfront Plan and excluded only the area between Leslie St. and Dufferin St. (roughly the eastern harbour to Ontario Place in the west). Even at this early stage, there were reports that there was little coordination between TRCA (a joint Metro Toronto - provincial body), the city's planning department and the federal Harbour Commission. From this period until 1985, the proposed public area on the Spit was referred to as the Aquatic Park. Public discussions on the future of the site were held in June 1974 and proposed uses included mooring for over 500 boats, along with bicycling, picnicking and fishing facilities. A Master Plan was prepared for the TRCA and the details were publicized in March 1976. The consultants' report proposed significant development, including expanded marinas (now mooring for 1,500 boats), an amphitheatre, a water ski area and a hotel. Former City of Toronto councillor Colin Vaughan portrayed the consultation process as narrowly focused in a February 1977 article. Vaughan cited the following language from the terms of reference for the consultants: "to produce an active water-oriented recreation concept featuring major boating, swimming and aquatic facilities" and noted that only 20 acres of the 250 acres under study were set aside for naturalized areas. The Master Plan was criticized by several groups and in the end, governments were not prepared to fund the high cost on a relatively controversial proposal. In 1984, the TRCA launched a new planning process for the Spit as the organization acknowledged that the 1976 plan was "no longer appropriate". There was significant lobbying by sailing and naturalist groups, however, the Spit was becoming naturalized with little interference. However, in 1976 the Aquatic Park Sailing Club was formed on one of the embayments. It is still operating today with mooring balls for 100 sailboats and a clubhouse and dock. The members also consider themselves stewards of the spit. They are off grid and use solar power. In 1985, the TRCA announced that the northern portion of the Spit was designated as an environmentally sensitive area and that future plans would accommodate both recreational and naturalist groups.

Land title Because it was newly created land, it was owned by the Crown and held by the provincial Ministry of Natural Resources (MNR). The land set aside for the park was transferred to the TRCA in 1984. However, the MNR retains ownership of the active landfill portion of the spit.

Friends of the Spit The Leslie Street Spit's evolution into an urban wilderness was never in the city's plans. The spit's status as such was secured by a number of organizations, with the citizens' advocacy group known as Friends of the Spit at the forefront of advocacy to naturalize the site.

Structure

… excerpt ends here. Continue reading the full article.

Illustrations

Leslie Street Spit: Map of Leslie Street Spit. The Spit extends from the city's east end in a roughly southwesterly direction into Lake Ontario.
Map of Leslie Street Spit. The Spit extends from the city's east end in a roughly southwesterly direction into Lake Ontario.
Leslie Street Spit: Leslie Beach looking east, 1935.  The beach disappeared when the spit was constructed.
Leslie Beach looking east, 1935. The beach disappeared when the spit was constructed.
Leslie Street Spit: Leslie Street Spit was the result of decades of land reclamation by the Toronto Port Authority. Beginning in the 1970s, these areas began to be converted into parks by the TRCA.
Leslie Street Spit was the result of decades of land reclamation by the Toronto Port Authority. Beginning in the 1970s, these areas began to be converted into parks by the TRCA.
Leslie Street Spit: View of the Outer Harbour East Headland and Vicki Keith Point.
View of the Outer Harbour East Headland and Vicki Keith Point.
Leslie Street Spit illustration

Worked examples

Example 1 — a first encounter with Leslie Street Spit

Start with the simplest possible case. Write down what Leslie Street Spit claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Leslie Street Spit 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 Leslie Street Spit 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 Leslie Street Spit

In research
Leslie Street Spit appears in science 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 Leslie Street Spit 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
Leslie Street Spit is common in secondary-school and first-year university syllabi. It links to neighbouring topics Breakwaters, Headlands of Canada, Important Bird Areas of Ontario, so understanding it makes those chapters shorter.
In everyday life
Look for Leslie Street Spit 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 Leslie Street Spit in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Leslie Street Spit 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 Leslie Street Spit out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Leslie Street Spit in simple terms?

The Leslie Street Spit, or officially the Outer Harbour East Headland, is a human-made headland in Toronto, Ontario, Canada, extending from the city's east end in a roughly southwesterly direction into Lake Ontario. It is about 5 kilometres (3 mi) long.

Why does Leslie Street Spit matter?

Because it connects several science 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 Leslie Street Spit?

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 Leslie Street Spit.

Tags

  • Breakwaters
  • Headlands of Canada
  • Important Bird Areas of Ontario
  • Land reclamation
  • Landfills in Canada
  • Landforms of Toronto
  • Parks in Toronto
  • Redeveloped ports and waterfronts in Toronto
  • Tourist attractions in Toronto

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