click below
click below
Normal Size Small Size show me how
Taming the RIver
The Mississippi River Section 5
| Question | Answer |
|---|---|
| What was a problem on the river? | Some spots were too shallow with rocks & rapids |
| What was built to help boats travel in shallow areas? | Canals |
| What are canals? | Waterways built by humans |
| What was built to raise and lower boats in elevation? | Lock chambers |
| What waterway opened in 1848? | Illinois Waterway |
| What year did Illinois Waterway open? | 1848 |
| What does the Illinois Waterway connect? | The Mississippi River and Lake Michigan |
| What was opened in 1855? | Soo Locks |
| What year were the Soo Locks opened? | 1855 |
| What does the Soo Locks connect? | Lake Michigan with the other Great Lakes |
| Because of locks, how far can we travel on the Mississippi River? | From the Great Lakes to the Gulf of Mexico |
| What problem occurred because humans built locks? | Fish were not able to get to spawning grounds |
| What was installed to help fish get around locks? | Fish ladders |
| What year was the first fish ladder built? | 1880 |
| Where was the first first ladder built? | Rhode Island |
| What does the St. Lawerence Seaway connect? | Great Lake to Atlantic Ocean |
| What problem happens with the Mississippi River? | It often floods |
| Why does the Mississippi River flood? | Heavy rain & snow fill the watershed |
| What is a watershed? | Area of land that includes all rivers & streams that flow into a greater body of water |
| What are built to prevent flooding? | Levee |
| What are levees? | Long wall of soil built along a river bank |
| How many miles were levees built? | 700 |
| What cities do the levees connect? | New Orleans & St. Louis |
| What’s another way to prevent flooding? | Dams |
| What do dams do? | Create reservoirs to collect rain water |
| What are reservoirs? | Artificial lakes used to store a large supply of water |
| What can dams be used for? | Create electricity |
| What does divert mean? | To change directions |
| What are flood plains? | Areas of land that may be covered by water when a river overflows |
| How are flood plain beneficial? | Plants grow Birds & animals next |
| What percentage of American farming exports come from the Mississippi River Valley? | 92% |
| What are exports? | Products sent to another state or country to be sold |
| How much cargo passes through the Port of South Louisiana yearly? | 500 million tons |
| What is a port? | Where a ship loads and unloads cargo |
| How long in the port of South Louisiana? | 54 miles |
| What waterway stretches from Boston to the Southern tip of Florida? | Intracoastal Waterway |
| How long in the Intracoastal Waterway? | 3,000 miles |
| What do many ships carry on the Intracoastal Waterway? | oil |
| What is a barge? | Flat bottomed boat |
| How do barge move? | Pushed by tow boats |