Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel...
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Transcript of Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel...
![Page 1: Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel March 10, 2010 CEE 129.](https://reader035.fdocuments.in/reader035/viewer/2022070306/551a013855034619378b491b/html5/thumbnails/1.jpg)
Global Ship Capacity:Are there enough ships to protect our ports
from sea level rise?
Leigh HammelMarch 10, 2010
CEE 129
![Page 2: Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel March 10, 2010 CEE 129.](https://reader035.fdocuments.in/reader035/viewer/2022070306/551a013855034619378b491b/html5/thumbnails/2.jpg)
Ship Requirements
- Looking at approximately 150 ports worldwide- At least 2 specialty ships per port- Plus accessory barges and tugboats, approximate
at 3
(150 2) (3 150) 750 ships world wide
![Page 3: Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel March 10, 2010 CEE 129.](https://reader035.fdocuments.in/reader035/viewer/2022070306/551a013855034619378b491b/html5/thumbnails/3.jpg)
Within the US
Approximately 75 ports
We need:- 150 specialty ships- 225 accessory ships
![Page 4: Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel March 10, 2010 CEE 129.](https://reader035.fdocuments.in/reader035/viewer/2022070306/551a013855034619378b491b/html5/thumbnails/4.jpg)
What do we have?
• As a nation (approx): – 6200 tugboats and towboats– 3200 barges
Accessory ships ✔
http://www.canalmuseum.com/canalphotos/tugboat-08.jpg
![Page 5: Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel March 10, 2010 CEE 129.](https://reader035.fdocuments.in/reader035/viewer/2022070306/551a013855034619378b491b/html5/thumbnails/5.jpg)
Specialty Ships
USACE – 3Manson (SF Bay) – 4General Construction - 5Cosco (China) – 4-8
![Page 6: Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel March 10, 2010 CEE 129.](https://reader035.fdocuments.in/reader035/viewer/2022070306/551a013855034619378b491b/html5/thumbnails/6.jpg)
• 3 companies X fleet of 4 = 12 ships per region• Regions:– Pacific Northwest– SF Bay/Northern CA– Southern CA – Florida/Gulf of Mexico– Northeast
• Approximately 60 ships within the US 90 ship deficit
![Page 7: Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel March 10, 2010 CEE 129.](https://reader035.fdocuments.in/reader035/viewer/2022070306/551a013855034619378b491b/html5/thumbnails/7.jpg)
Ships around the world
• China is the next largest producer of specialty ships in the world
• If the US does not have enough ships for ourselves, and China is producing less ships, there will be a deficit there too
• Other countries with high ship production:– Netherlands– UK– Bangladesh
• These countries have less demand for specialty ships, so nationally may have a sufficient amount, but globally still a deficit
![Page 8: Global Ship Capacity: Are there enough ships to protect our ports from sea level rise? Leigh Hammel March 10, 2010 CEE 129.](https://reader035.fdocuments.in/reader035/viewer/2022070306/551a013855034619378b491b/html5/thumbnails/8.jpg)
limitations
1. The majority of these ships can only lift up to 150-200 tons, this is only 1/5 of the capacity of the Oosterschelde dam’s ships
2. Requiring only 2 ships per site is a generous assumption – the Oosterchelde dam had 5
3. Replacing ships – it takes approximately two years to build new ships, and each facility can usually build 2-5 at a time