Rivers - River Tees Case Study Flashcards
Reservoir
Cow green built in 1970
Reservoir advantages and disadvantages
+controls flood risk, possible energy source, leisure activities, increased water supply for industrial use
- expensive, destruction of landscape, visual pollution, changes landuse
Embankment with gabions
Yarms flood defence scheme
Embankment with gabions advantages and disadvantages
+easy to build, good drainage, reduces water velocity
- visual pollution, can break, expensive
Barrage
The tees barrage
Barrage advantages and disadvantages
No pollution, renewable, reliable, minimal running costs
- prevents free access by boats, visual pollution, affects natural habitats, initially very expensive
Meander cut offs
The mandale loop - near Stockton
Meander cut offs advantages and disadvantages
+ water moves out of area quicker, effective, good for shipping boats
- flooding may occur downstream, more erosion downstream, changes in ecosystem of river, spoils natural look
Flood plain zoning
Yarm flood plain scheme
Flood plain zoning advantages and disadvantages
+cheap, grazing land improved, landscape looks more natural
- less land for construction, only works in undeveloped areas
Flood warning systems
Yarms flood warning system
Flood warning system advantages and disadvantages
+ cheap, saves lives, prepares people, impacts reduced
- doesnt prevent a flood, living in a place like this is hard to get insurance for, false sense of security, expensive to modify homes
Dredging
Lower tees estuary
Dredging advantages and disadvantages
+ increases channel storage, improves navigation, helps to encase flood water
- expensive, time consuming, done regularly