|
Introduction
Water and Dams Section is concerned about monitoring water resource and dams, Studies on development and conservation of water resources, controlling the consumption of groundwater from the wells, falajes and springs and studies on the surface water flow through the wadis. Studying suitable location for dams and breakers, Making specifications for drilling the observation wells as well as providing the required supervision .
Briefly the routine works executed are as follows
Dams
- Monitoring and operation works of ten major dams in UAE and some of the breakers .
- Specifying the required maintenance for the dams and quantity of silt to be removed from reservoir of the dams and preparing tender and contract documents with all specifications for such works .
- Following the procedures for tendering and awarding contracts for studies, investigations and designs of dams projects and evaluation of tendered offers .
- Supervision and follow up, reviewing and issuing consultants and contractors payments certificates for dams projects .
Groundwater
- Monitoring of 176 observation wells spread all over the UAE.
- Preparing specifications for observation wells as well as supervision.
- Supervision on investigation and development of groundwater resources .
- Licensing the drilling companies and issuing No Objection Certificates .
- Evaluation studies for groundwater resources .
Hydrology
- Monitoring surface water flow for 22 wadis .
- Monitoring surface flow for 50 falajes .
- Studies on wadi flows for dams, culverts to prevent flooding .
- Maintenance of water level recorders installed in the wadis and wells.
- Preparing yearly book for hydrology .
Dams Of Ministry Of Environment & Water
MOEW Constructs Dams in UAE to meet the increase in demand on water because of the Agricultural and economical developments in the country .
The main purposes of dams projects are as follows :
- To increase groundwater recharge .
- To improve water table and to stop seawater intrusion .
- To make use of surface water in irrigation .
- To conserve soil and farms from flooding .
- To limit damages and losses from flooding .
- To enhance soil characteristics for the farms by mixing it with dam's silted soil .
- To meet the demand on domestic water in agricultural regions.
The following salient features of the listed dams built by MOEW:
- Ham Dam
- Wurayyah Dam
- Zikt Dam
- Basseirah Dam
- Bih Dam
- Idhn Dam
- Gulfa Dam
- Tawiyaeen Dam
- Hadf Dam
Ham Dam
Wadi Ham is located in eastern agricultural region, the main objective of the project was to get benefit from surface water running to improve water table, stopping seawater intrusion, limiting damages and losses from flooding and enhance water quality.
| Ham |
Dam Site |
| Dec 1982 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 211 m2 |
Catchment’s Area |
| 7million Km3 |
Dam Capacity |
| 1,600,000 m2 |
Reservoir Area |
| Earth fill |
Type of the Dam |
| 16 m |
Height of the Dam |
| 2800 m |
Length of the Dam |
| 180 m |
Length of 2 Spillways |
| 2,590 m3 /s |
Spillway Discharge Capacity |
Wurayyah Dam
Wadi Wurayyah is located in eastern agricultural region, running from Masafi Mountains towards Gulf of Oman and the dam is about 9 Km from the coast on the Khor Fakan - Dibba road .
The main objective of the project was to get benefit from surface water running to the sea .
The Main dam height is 33 m, 367m is the length and 5.2 MCM is the reservoir capacity, in addition there are two breakers the first one about 2 Km downstream of main dam having 4 m height, 150 m length and 140,000 m3 capacity and the second one on wadi Al Khun which is about 8 Km from main dam and 6 Km from the coast, it has 4 m height, 75 m length and 30,000 m3 capacity .
| Wurayyah |
Dam Site |
| Dec 1997 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 113 m2 |
Catchment’s Area |
| 5.2milion m3 |
Dam Capacity |
| 490.000 m2 |
Reservoir Area |
| Earth - Rock fill |
Type of the Dam |
| 33 m |
Height of the Dam |
| 367 m |
Length of the Dam |
| 150 m |
Length of Spillway |
| 2,417 m3 /s |
Spillway Discharge Capacity |
Zikt Dam
Wadi Zikt is located in eastern agricultural region, about 8 Km from Gulf of Oman, in addition three breakers storing about 500,000 m3 are existing downstream of the dam for the purpose of slowing down the flow from spillway .
| Zikt |
Dam Site |
| Dec. 1991 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 68 Km2 |
Catchment’s Area |
| 3 million Km3 |
Dam Capacity |
| 492,500 m2 |
Reservoir Area |
| Earth Rock fill |
Type of the Dam |
| 18 m |
Height of the Dam |
| 234 m |
Length of the Dam |
| 150 m |
Length of Spillway |
| 1,677 m3 /s |
Spillway Discharge Capacity |
Basseirah Dam
Wadi Basseirah is located in northern agricultural region, running from Masafi Mountains passes Dibba town towards Gulf of Oman.
| Basseirah |
Dam Site |
| Jul. 1999 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 116 Km2 |
Catchment’s Area |
| 1.6 million m3 |
Dam Capacity |
| 350.000 m2 |
Reservoir Area |
| Earth- Rock fill |
Type of the Dam |
| 8 m |
Height of the Dam |
| 880 m |
Length of the Dam |
| 800 m |
Length of Spillway |
| 2.172 m3 /s |
Spillway Discharge Capacity |
Bih Dam
Wadi Bih is located in northern agricultural region, the main objective of the project was to get benefit from surface water running to improve water table and to balance water consumption in the region .
| Bih |
Dam Site |
| Oct. 1982 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 468 Km2 |
Catchment’s Area |
| 7.5milion Km3 |
Dam Capacity |
| 1,800,000 m2 |
Reservoir Area |
| Earth fill |
Type of the Dam |
| 18 m |
Height of the Dam |
| 575 m |
Length of the Dam |
| 300 m |
Length of Spillway |
| 2,650 m3 /s |
Spillway Discharge Capacity |
Idhn Dam
Wadi Idhn is located in northern agricultural region, the main objective of the project was to slow down the runoff and to improve water table downstream .
| Idhn |
Dam Site |
| Oct. 1983 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 70,5 Km2 |
Catchment’s Area |
| 500,000 m3 |
Dam Capacity |
| 600,000 m2 |
Reservoir Area |
| Earth fill |
Type of the Dam |
| 10 m |
Height of the Dam |
| 113 m |
Length of the Dam |
| 38m |
Length of Spillway |
| 150 m3 /s |
Spillway Discharge Capacity |
Gulfa Dam
Wadi Gulfa is located in central agricultural region, the main objective of the project was to retard the runoff and to improve water table downstream .
| Gulfa |
Dam Site |
| Mar. 1985 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 11.5 Km2 |
Catchment’s Area |
| 300.000 m3 |
Dam Capacity |
| 35,000 m2 |
Reservoir Area |
| Earth fill and concrete |
Type of the Dam |
| 7.5 m |
Height of the Dam |
| 210 m |
Length of the Dam |
| 27m |
Length of Spillway |
| 310 m3 /s |
Spillway Discharge Capacity |
Tawiyaeen Dam
Wadi Tawiyaeen is located in northern agricultural region near Tawiyaeen village, the main objective of the project was to slow down the runoff which spreads in the gravel plain and goes waste by evaporation .
| Tawiyaeen |
Dam Site |
| April 1991 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 190 Km2 |
Catchment’s Area |
| 18.5 million m3 |
Dam Capacity |
| 3,240,000 m2 |
Reservoir Area |
| Earth Rock fill |
Type of the Dam |
| 23.5 m |
Height of the Dam |
| 342 m |
Length of the Dam |
| 144 m |
Length of Spillway |
| 2,665 m3 /s |
Spillway Discharge Capacity |
Hadf Dam
Wadi Hadf is located in central agricultural region, the main objective of the project was to get benefit from surface water running to improve water table downstream .
| Hadf |
Dam Site |
| Oct. 1991 |
Completion Date |
| Ground Water Recharge and Flood Protection |
Purpose of the Dam |
| 62 Km2 |
Catchment’s Area |
| 3 million m3 |
Dam Capacity |
| 675,000 m2 |
Reservoir Area |
| Earth fill |
Type of the Dam |
| 11 m |
Height of the Dam |
| 875 m |
Length of the Dam |
| 577 m |
Length of Spillway |
| 1,609 m3 /s |
Spillway Discharge Capacity |
Volume Of Water Stored in Some Of The DAMS in UAE, Since their construction (in million cubic meters) click to view the table
|
|