Optimizing road development for groundwater recharge and retention
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Transcript of Optimizing road development for groundwater recharge and retention
![Page 1: Optimizing road development for groundwater recharge and retention](https://reader036.fdocuments.net/reader036/viewer/2022062319/55866504d8b42af17c8b463c/html5/thumbnails/1.jpg)
Optimizing Road Development for Groundwater Recharge and Retention
Some Solutions from Tigray, Ethiopia
![Page 2: Optimizing road development for groundwater recharge and retention](https://reader036.fdocuments.net/reader036/viewer/2022062319/55866504d8b42af17c8b463c/html5/thumbnails/2.jpg)
Plate1. Deep trenches at downstream side of roads
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Plate 2a. Road side ponds to recharge groundwater and enhance in-situ moisture in soils
![Page 4: Optimizing road development for groundwater recharge and retention](https://reader036.fdocuments.net/reader036/viewer/2022062319/55866504d8b42af17c8b463c/html5/thumbnails/4.jpg)
Plate 2b. Road side ponds to recharge groundwater and enhance in-situ moisture in soils
![Page 5: Optimizing road development for groundwater recharge and retention](https://reader036.fdocuments.net/reader036/viewer/2022062319/55866504d8b42af17c8b463c/html5/thumbnails/5.jpg)
Plate 2c. Road side ponds to recharge groundwater and enhance in-situ moisture in soils
![Page 6: Optimizing road development for groundwater recharge and retention](https://reader036.fdocuments.net/reader036/viewer/2022062319/55866504d8b42af17c8b463c/html5/thumbnails/6.jpg)
Plate 3. Road side runoff diverted into ponds
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June 2014
Sept 2014
Plate 4a. Water from a culvert is channeled into farmlands with over 300m long trench
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Culvert
June 2014
Sept 2014
Culvert
Plate 4b. Water from a culvert is channeled into farmlands with over 300m long trench
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Plate 5. Water from a culvert is channeled into farmlands
June 2014
Sept 2014
![Page 10: Optimizing road development for groundwater recharge and retention](https://reader036.fdocuments.net/reader036/viewer/2022062319/55866504d8b42af17c8b463c/html5/thumbnails/10.jpg)
Plate 6. Road side runoff is channeled into farmlands (as spate)
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Deep trenches
Culverts
Borrow pit
Plate 7. Upstream trenches, and then water from culvert channeled into a borrow pit.
![Page 12: Optimizing road development for groundwater recharge and retention](https://reader036.fdocuments.net/reader036/viewer/2022062319/55866504d8b42af17c8b463c/html5/thumbnails/12.jpg)
Plate 8. Borrow pit shown in plate 7
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Plate 9. Panoramic view of channels to divert water from culverts into a borrow pit shown in Plate 8.
Culvert
Borrow pit
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Plate 10. A pond used to store water from road side and a culvert
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Plate 11. Water from a culvert which used to cause gully erosion is now channeled and spread into farmlands
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Plate 12. Road side runoff is diverted and spread into farm lands through series of chennels
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Plate 13. Similar to Plate 12 but different site