Mississippi River. River Facts Begins 200 miles north of Minneapolis at Lake Itasca State Park. Length: 2,352 miles Width: 20 ft at headwaters to 1 mile.

Slides:



Advertisements
Similar presentations
By: Richelle DeCuir Title 1 Wetlands Workshop January 15, 2004 Hi, Im Richelle DeCuir from CenLA. Im concerned because Louisiana supplies the largest port.
Advertisements

Drainage Basin. Drainage Basin – all the area of land drained by one river and its tributaries.
Rivers.
Chapter 2 Fresh Water Section 1 Streams and Rivers
World Geography 3202 Understand how running water acts as an agent of erosion and deposition. (Chapter 2)
Geographic Inquiry: Why did New Orleans Flood?.
Chapter 6: Erosion & Deposition
Earth & Space Science Unit 12: Rivers & Groundwater PPT #1.
Chapter 14 River Systems and Landforms
World Geography 3202 Understand how running water acts as an agent of erosion and deposition. (Chapter 2)
Fresh Water Systems Parkside Junior High 2010/11 Mrs. Doig-Gray and Mrs. Friesen.
THE MISSISSIPPI RIVER. General facts: Third largest drainage basin in the World The Mississippi drains 1/3 of USA and a small part of Canada. Second longest.
Chapter 13 Surface Water.
Rivers and Drainage Patterns. Drainage Regions of Canada There are 5 main drainage regions of Canada: – Pacific Ocean – Atlantic Ocean – Hudson Bay –
September 9, 2015 Grab a paper from the shelf and use your notes and the map below to complete.
Surface Water Chapter 9.
Exeter 8/12/00.
Engineering History and 2008 Operation of the Bonnet Carré Spillway: A Controlled Levee Crevasse on the Lower Mississippi River Christopher G. Brantley,
Why do we need to know about Rivers? Source of drinking water Source of irrigation water (You eat rivers as well as drink them) Waste removal (takes it.
Changing Nature’s Course Tracy Morris David Trombley.
North Carolina Watersheds. 1. What is a watershed? An area of land drained by a river, stream or lake. It is also called a river basin.
Surface Water.
Lakes, Ponds Wetlands, Streams, Rivers, and Groundwater
Increase Atchafalaya Flow to Terrebonne Governor’s Advisory Commission Meeting 7 August 2013 committed to our coast.
Unit 1 Louisiana’s Changing Wetlands. Introductory Facts: –So. Louisiana contains 40% of total coastal marshland in the contiguous United States –Wetlands.
Restoring Deltaic Functions on the Mississippi Harley S. Winer, Ph.D., P.E. Atkins, Metairie, LA Harley S. Winer, Ph.D.,
River Systems 01/21/ b pgs IN: Which stage of the water cycle brings most of the water to Nevada?
Surface Water Chapter 9 Notes.
The River Mississippi!!!!!!!!!!! By Charlie, William and George.
Watershed Two major factors define a watershed: Gravity and Topography
What happens to rainfall when it hits earth????
Louisiana Waterways and Cities. Today we will discuss Physical vs. cultural geography Important Cities Important waterways Flood Control.
BY: EZRA L. SKWARKA WATER MASSES. ONE CONTINUOUS BODY OF SALTWATER DIVIDED INTO 4 LARGE, DIFFERENTLY NAMED SECTIONS.
Chapter 9 Surface water Mars.
Rivers Almost half of the water that falls to the Earth’s surface eventually ends up in a stream or river (runoff), where it travels overland to the.
Surface Water Includes: River Systems Ponds Lakes.
Louisiana Geography Geology Geology is the study of how Earth was formed. Scientists who study this are called geologists. They look at rocks, fossils,
Chapter 2: The Flow of Freshwater. Draw the water cycle diagram in your daybook and label it in your own words. p.41 in your text.
Wetlands Workshop Presented by Em LeBlanc. Let’s go on a Field Trip!
River Systems and Watersheds. Rivers and Streams River systems are made up of tributaries of smaller streams that join along their course. Rivers and.
Major Rivers in the United States
Dworshak Dam, Clearwater River, holds 12,384,000 acre- feet of water Idaho has 93,000 miles of rivers and streams.
Mississippi River. Names Great One Father of Waters “Great River” “Big River” Derived from the Ojibwe word misi-ziibi ("Great River") or gichi- ziibi.
Review for LA Geography II. Storm surge: wall of ocean water that is pushed inland during a hurricane Coastal Plain: low flat region built by a river.
Hydrology of Louisiana’s Wetlands Loss of Wetlands The coastal wetlands are eroding at exceedingly high rates. In the 1970s, when land loss rates were.
Lesson 1-3 Notes: Bodies of Water
Mississippi River Industries Vocabulary Flood Control Misc. 5 pt 5 pt
Why do people try to manage rivers?.
INVESTIGATING RIVERS.
Chapter 2 Fresh Water Section 1 Streams and Rivers
What runs but never walks, Has a mouth but never talks, Has a bed but never sleeps, Has a head but never weeps?
Stream Erosion and Deposition
River System Development
River Erosion River Erosion.
World Geography 3202 Understand how running water acts as an agent of erosion and deposition. (Chapter 2)
Content: Louisiana’s Identity: This is Louisiana
INVESTIGATING RIVERS.
River Systems Part 3 Formation of Deltas Flooding.
Running Water.
Rivers & Watersheds.
Physical Geography of the United States and Canada
River Erosion River Erosion.
The Flow of Freshwater.
Watersheds and Rivers.
The Flow of Water.
River Systems Chapter 15.
Challenges and Opportunities in Addressing Climate Change
All fresh water comes from precipitation.
World Geography 3202 Understand how running water acts as an agent of erosion and deposition. (Chapter 2)
Presentation transcript:

Mississippi River

River Facts Begins 200 miles north of Minneapolis at Lake Itasca State Park. Length: 2,352 miles Width: 20 ft at headwaters to 1 mile across Louisiana Ends in Gulf of Mexico 31 states & 2 Canadian provinces drain into the Mississippi Rive. Water discharged at a rate of 600,000 cubic ft. per second. Takes 90 days for water to travel from MN to Gulf Carries 436,000 tons of sediment each day

Mississippi River Basin

Mississippi Deltas

In the beginning… Red River and Mississippi River were separate rivers.

15 th Century Mississippi turned west and a loop called Turnbull’s Bend was formed. Intercepted the Red River which became a tributary of the M. River. Atchafalaya formed as a distributary.

1727 Construction of first levees along the Mississippi River completed.

1778 Log jam at entrance to Atchafalaya.

1831 Captain Henry M. Shreve dug a canal through the neck of Turnbull’s Bend and shortened river travel time.

1839 Log jam at Atchafalaya is cleared. As A.River got wider and deeper, it captured more of the M. River water. When water in R. River was high and M. River low, water flowed east through Old River. When water was high in the M. River, water flowed west through Old River.

1882 River levees extended from Cairo, Illinois to the mouth of the river.

1928 Flood Control Act of 1928 – instructed Corp of Engineers to tackle problem of flooding in lower M. River basin. Levees, spillways, and related structures.

Old River 1928

1931 When river reaches a critical stage, the Bonne Carre spillway is opened to allow water to flow into Lake Pontchartrain. It has been opened 10 times.

1953 If river continues to rise after the Bonne Carre’ spillway is opened, then the Morganza Spillway is opened. Only opened twice so far.

1963 Decision made to control flow of river so that 70% of water will go down the Mississippi River and 30% down the Atchafalaya. Old River Control Complex completed.

: Vidalia hydroelectric plant put in place north of the outflow channel. 1986: Auxilliary Structure opened.

Effects of Hydrological Modifications Sediment from river is not flowing through the wetlands. Subsidence (sinking) is occurring and marsh vegetation going underwater and dying. Loss of vegetation leads to increased erosion and habitat loss. Sediment from river is falling off the Continental Shelf. Saltwater is intruding into freshwater areas and killing plants.