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PARTS OF A WATERSHED

A watershed is the land that water flows across, under, or through on its way to a stream, river, lake, wetland or other body of water. PARTS OF A WATERSHED. Tributary Smaller rivers or streams that flow into a larger river or stream. Divide/ Ridgeline Higher ground separating two

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PARTS OF A WATERSHED

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  1. A watershed is the land that water flows across, under, or through on its way to a stream, river, lake, wetland or other body of water

  2. PARTS OF A WATERSHED Tributary Smaller rivers or streams that flow into a larger river or stream. Divide/ Ridgeline Higher ground separating two adjacent streams or watersheds. This larger body of water may be a bay. River drains Into a larger body of water The watershed is surrounded by a divide, or natural, elevated boundary

  3. PARTS OF A WATERSHED Flood Plain Flat, border areas on each side of a river. Which allows water to spill out / overflow at times of high flow. The sediment is carried down stream & settles out or is deposited into the bottom of the slower moving sections of river. Sediment Materials such as rock fragments & grains that have been transported by wind, water, or glaciers. This is the Betsiboka River, Madagascar. Taken by the Space Shuttle showing the impact of logging . -2002

  4. Tributaries that flow into the Chesapeake Bay • Of the 50 major tributaries that feed to the Chesapeake Bay just three deliver almost all the fresh water for the bay. 1. Susquehanna River ~50% 2. Potomac River ~ 20% 3. James River ~ 15% *See if you can find them on the next slide!

  5. Susquehanna River Potomac River James River

  6. Major watersheds in Virginia There are 5 watersheds in Virginia but only 3 major areas where water can flow. Chesapeake Bay North Carolina Sound Gulf of Mexico (Mississippi Watershed)

  7. 1. Chesapeake Bay Watershed Chesapeake Bay

  8. 2. NorthCarolina Sounds Watershed

  9. 3. Gulf of Mexico Watershed

  10. The Largest Watershed In Virginia Chesapeake Bay Watershed covers 60% of Virginia. That equals 64.000 square miles and covers 6 states!!

  11. Watersheds can be Broken Down into Smaller Watersheds…..Virginia’s Top 5 smaller watershed’s - James (River)-York (River)-Rappahannock (River)- Potomac/Shenandoah (River)- Atlantic CoastalSee if you can locate them in next slide!!!

  12. Virginia’s Watersheds

  13. Potomac River Watershed Loudoun County -is part of the Chesapeake Bay Watershed System

  14. Loudoun County Watersheds Aldie, Virginia Where does our water flow? Hint it goes south east…..into the ______________ __________. After that the water flows into the Potomac River.

  15. Watershed Notes…Answers!!! watershed ridgeline divide tributaries Flood plain sediment 50 20 15

  16. 5 60% 60,000 6 Potomac Bull Potomac Groundwater Runoff Infiltration

  17. Homework Review 1st Map 2nd Map http://www.dgif.virginia.gov/education/sol/va-watersheds-bw.pdf

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