L26 Daylighting Lost Rivers

Question 1

What is urban stream syndrome

Answer 1

Urban effects on streams and rivers
- effects flows, water quality, morphology, ecology

Question 2

Rivers as Nuisances and Hazards

Answer 2

• common ailments associated with water courses (Lake Fever, Swap Fever and Miasmas)
• often actually malaria

Question 3

What is Cholera and what happened in Canada bc of Cholera

Answer 3

• patient hemorrhages to death, loses blood plasma
• 1832 York lost 4% of population

Question 4

What is channelization used for?

Answer 4

channelization –> increase flows –> dispose of wastes
- industrial wastes discharged directly into streams and rivers (from milling, breweries, oil refinery etc)

Question 5

Buried River Jackson Creek Issues

Answer 5

• spacing of blocks on streets large bc of creek
• building constructed directly over creek
• manufacturing locations on creek
• terrible odours
• waste
• dye pollution

Question 6

What is the Conservation Authorities Act (1946)’s objectives

Answer 6

1. Ensure Ontario’s rivers, lakes, stream are properly safeguarded, managed, restores
2. Protect, manage, restore ontario’s woodlands, wetlands, natural habitat
3. Develop&maintain programs to protect life and property from natural hazards
4. Provide opportunities for public to enjoy, learn from, respect natural envnmt

Question 7

What is daylighting?

Answer 7

• revitalizes streams by uncovering some or all of a previously covered river, stream of stormwater drainage
• can include naturalization, architectural and cultural restoration

Question 8

Ecosystem Benefits of Daylighting

Answer 8

1. Regulatory Services
   - air and water qual
   - micro climate
   - flood risks
2. Cultural Services
   - recreation & tourism
   - social cohesion
   - educational opportunities
3. Environment Services
   - nutrient cycling
   - aquatic and terrestrial habitat

Question 9

Environmental benefits of daylighting

Answer 9

• urban heat island mitigation
• improved air quality
• increased abundances and diversity of aquatic life
• improved water quality
• decreased car traffic, more pedestrians and public transit

Question 10

So what did we learn is needed for change

Answer 10

PUBLIC ADVOCACY AND POLITICAL WILL