The Race to Replace a Cracked Dam | Summary and Q&A

TL;DR

Construction teams in the Swiss Alps are building a new dam in front of an old dam that is damaged beyond repair, to prevent potential disasters and maintain energy generation.

Key Insights

• 🥶 The original dam, the Spitalam Dam, is nearly a century old and has a significant crack that cannot be repaired.
• 😲 Repairing the dam is risky due to potential long-term damage to the concrete and removing the dam would leave a gap in the energy grids.
• 😲 Construction teams are building a new dam in front of the old dam, using a double curvature design for strength and creating a tunnel for water discharge.
• 👷 The construction site is challenging due to extreme weather conditions, remoteness, and the need to transport materials, equipment, and personnel.
• 😲 Switzerland has numerous dams and hydroelectric power plants that play a critical role in generating electricity and maintaining energy balance.
• 💨 Hydropower provides a more consistent energy source compared to wind or solar power.
• 👷 The construction project demonstrates the power of construction to shape and impact the lives of millions of people.

Transcript

I've stood on a massive Dam high in the Swiss Alps but I'm not here for the snow ice or scenery I'm here for this one of the world's most challenging and epic construction sites here are building an enormous new dam in the most unforgiving of locations the site sits 2 000 meters above sea level it's hours away from any major city and you can only r... Read More

Questions & Answers

Q: Why are they building a new dam in front of the old dam instead of repairing it?

Repairing the old dam is risky due to potential long-term damage to the concrete. Additionally, removing the dam would leave a gap in the energy grids as the dam is used for hydroelectric power generation.

Q: How are they constructing the new dam?

The new dam is being constructed with staggered Towers using controlled explosives to clear space. It will have a double curvature design for strength and thinner walls. A tunnel is also being carved through the mountain for water discharge.

Q: How are they dealing with the extreme weather and remote location?

The construction site is covered in snow for half of the year, requiring teams to work continuously in shifts during the summer months. The site's remoteness makes it challenging to transport materials, equipment, and personnel.

Q: What is the purpose of the dam and the hydroelectric power plant?

The dam and the hydroelectric power plant play a critical role in generating electricity and maintaining a balance of consuming and producing electricity in Switzerland. Hydropower provides a more consistent energy source compared to wind or solar power.

Summary & Key Takeaways

• The original dam, known as the Spitalam Dam, is nearly a century old, has a crack, and is damaged beyond repair.

• Repairing the dam is risky due to the possibility of long-term damage to the concrete, and removing the dam would leave a gap in the energy grids.

• The construction teams are building a new dam in front of the old dam, using a double curvature design for strength, and creating a tunnel for water discharge.