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Report Title : SHARES VALLEY RAPID FLOOD IMPACT ASSESSMENT The assessment conducted on 15 th April -2016 District/governorate : Shares district, Hajjah governorate. 1. Purpose of the assessment. Oxfam has received a call from the deputy governor for Hajjah Governorate on 14 th April informing Oxfam about the huge damage caused by the heavy flood on the main water supply station for Hajjah City which supplying water to almost 98512 individuals including host communities and IDPs in addition to health facilities, schools and other governmental initiations, accordingly the deputy government appealed for urgent support and asked Oxfam to conduct a rapid Need Assessment to evaluate the damage and impact of the flood . Therefore Oxfam has sent its technical engineer on 15 th April in order to conduct need assessment and to capture an actual image on the ground about the flash flood impact and evaluate the urgent needs to be met in order to resume operation of the water supply system being damaged and rescue the community of Hajjah City from the likelihood disaster. 2. Methodology Direct discussion with the technical team from Hajjah WSLC, affected community members and key leaders in Hajjah governorate and local authorities including deputy governor and Head of LWSC , in addition to field observation and physical field visit to Hajjah main water supply station which severely affected by the flood. These are the main methodologies used for this assessment to came up with the real picture on the ground and share the findings with the relevant stakeholders. 3. Assessment findings: Based on physical field visit and meeting with the local authorities, affected communities, LWSC technical team, in addition to meeting with some humanitarian agencies in the ground at the time of visit , specially WHO, Al-Amal local NGO, the following is the Summary of the main findings from the assessment: 14 individuals were reported died in Bait Qadam (Shares district) as a result of the torrential rainfall and associated flooding that washed several houses in the area. 3 Households were totally damaged and swept by the flood and more than 100 Households were partially affected in Bait Qadam village in Shares district. 13 vehicles and number of small shops near to the Wadi banks (the numbers of shops are not confirmed yet) were also swept out by the flood. A heavy concrete mixing machine and bulldozer belong to the contractor who was working for rehabilitation of the bridge have been washed by the flood and damaged as shown in the picture. 150 families were displaced from their houses as a result of the flood, in addition to 300 families are at risk of flash flooding, they are arranging to relocate themselves ASAP, however they are in desperate needs for shelters to be relocated. All components of Hajjah water supply system in Shares valley , which comprised of 4 boreholes, two open dug wells, pump and generator, electrical connection cable, pump and generator room, protection wall and other component of the pumping station were either completely or partially damages, and accordingly the complete water supply system is currently out of order. During the assessment, 7 affected villages in Shares district were not accessible to conduct the as the access roads were washed and cut by the flood, the local authorities are working hardly to open the roads for the seven isolated villages. The rainfall and flood created numerous small ponds, lagoons (stagnant water) in many areas, these could lead to the proliferation of mosquitoes and in turn spreading of malaria and other fevers. 4. Assessment finding 4.1. Where Hajjah Water supply system is located and what are the areas served by the WSS. All sources and pumping stations of Hajjah Water supply System are located in Shares district , the WSS is serving whole Hajjah City including sub villages in Hajjah District and substantial part of Shares district ( eastern part of Hajjah City) and a part from Mabyan district ( Sahel Jahaf, Bait Awsha and Al-Ma’asarah). In general, the Hajjah water supply system is directly connected to 7948 Households.

Report Title : SHARES VALLEY RAPID FLOOD IMPACT ASSESSMENT · 2020. 4. 30. · Report Title : SHARES VALLEY RAPID FLOOD IMPACT ASSESSMENT The assessment conducted on 15th April -2016

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Page 1: Report Title : SHARES VALLEY RAPID FLOOD IMPACT ASSESSMENT · 2020. 4. 30. · Report Title : SHARES VALLEY RAPID FLOOD IMPACT ASSESSMENT The assessment conducted on 15th April -2016

Report Title : SHARES VALLEY RAPID FLOOD IMPACT ASSESSMENT The assessment conducted on 15th April -2016

District/governorate : Shares district, Hajjah governorate.

1. Purpose of the assessment.

Oxfam has received a call from the deputy governor for Hajjah Governorate on 14

th April informing Oxfam about the huge

damage caused by the heavy flood on the main water supply station for Hajjah City which supplying water to almost 98512 individuals including host communities and IDPs in addition to health facilities, schools and other governmental initiations, accordingly the deputy government appealed for urgent support and asked Oxfam to conduct a rapid Need Assessment to evaluate the damage and impact of the flood . Therefore Oxfam has sent its technical engineer on 15

th April in order to

conduct need assessment and to capture an actual image on the ground about the flash flood impact and evaluate the urgent needs to be met in order to resume operation of the water supply system being damaged and rescue the community of Hajjah City from the likelihood disaster.

2. Methodology Direct discussion with the technical team from Hajjah WSLC, affected community members and key leaders in Hajjah governorate and local authorities including deputy governor and Head of LWSC , in addition to field observation and physical field visit to Hajjah main water supply station which severely affected by the flood. These are the main methodologies used for this assessment to came up with the real picture on the ground and share the findings with the relevant stakeholders.

3. Assessment findings:

Based on physical field visit and meeting with the local authorities, affected communities, LWSC technical team, in addition to meeting with some humanitarian agencies in the ground at the time of visit , specially WHO, Al-Amal local NGO, the following is the Summary of the main findings from the assessment:

14 individuals were reported died in Bait Qadam (Shares district) as a result of the torrential rainfall and associated flooding that washed several houses in the area.

3 Households were totally damaged and swept by the flood and more than 100 Households were partially affected in Bait Qadam village in Shares district.

13 vehicles and number of small shops near to the Wadi banks (the numbers of shops are not confirmed yet) were also swept out by the flood.

A heavy concrete mixing machine and bulldozer belong to the contractor who was working for rehabilitation of the bridge have been washed by the flood and damaged as shown in the picture.

150 families were displaced from their houses as a result of the flood, in addition to 300 families are at risk of flash flooding, they are arranging to relocate themselves ASAP, however they are in desperate needs for shelters to be relocated.

All components of Hajjah water supply system in Shares valley , which comprised of 4 boreholes, two open dug wells, pump and generator, electrical connection cable, pump and generator room, protection wall and other component of the pumping station were either completely or partially damages, and accordingly the complete water supply system is currently out of order.

During the assessment, 7 affected villages in Shares district were not accessible to conduct the as the access roads were washed and cut by the flood, the local authorities are working hardly to open the roads for the seven isolated villages.

The rainfall and flood created numerous small ponds, lagoons (stagnant water) in many areas, these could lead to the proliferation of mosquitoes and in turn spreading of malaria and other fevers.

4. Assessment finding

4.1. Where Hajjah Water supply system is located and what are the areas served by the WSS.

All sources and pumping stations of Hajjah Water supply System are located in Shares district , the WSS is serving whole Hajjah City including sub villages in Hajjah District and substantial part of Shares district ( eastern part of Hajjah City) and a part from Mabyan district ( Sahel Jahaf, Bait Awsha and Al-Ma’asarah). In general, the Hajjah water supply system is directly connected to 7948 Households.

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4.2. What are the sources of Hajjah WSS

The main sources of hajjah WSS are composed of :

- Four deep Boreholes - Two shallow open dug wells in the wadi

bed - One spring

All these sources are located in Shares districts where the main district affected by the flash flood

4.3. Types and number

of bbeneficiaries served by Hajjah Water Supply system

1- The total beneficiary numbers supported by the affected Hajjah WSS is estimated = 68856 Host community + 35000 IDPs = 98512 Individuals.

2- Number of households directly connected to the WSS = 7497 HHs 3- Government offices connections = 242 connection 4- Commercial connections = 227 connection

5- Indirect beneficiaries: 600 individuals in Helhal area, in addition to 30 hhs at Deer Al-Heshar & Jandalah are getting water from their neighbours who are connected to the WSS.

5- Details of the affected water supply system and it is components:

a) Al-Hashyah open dug well ( 20 meter depth , 3 meter diameter and productivity 20 liter/sec ) this well is located in Al-Hashyah near to the 1st

pumping station and considers as a key water source for Hajjah water supply system, due to its high productivity (72m3/h) and it serve two pumps ( Submersible pump and Boster pump) installed into the well and it was pumping water to the main reservoir in Al-Hashyah pump station, however this well is entirely affected by the flood and filled with the alluvial deposits up to 10 meters. Two pumps are still inside the burred well and expected both pumps are damaged. See below picture.

Al-Hashyah dug well ( before of flash flood) Al-Hashyah dug well ( during of flash flood) Al-Hashyah dug well ( after of flash flood)

Al-Hashyah dug well ( after of flash flood) Al-Hashyah dug well ( after of flash flood) Al-Hashyah dug well ( after of flash flood)

b) Al-Hashyah pumping station: Is the first pumping station which is receiving pumped water from three sources (one open dug well 20 meter depth

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and two boreholes 35m depth per each) located near the pumping station. This pumping station contains two storage tanks (50 m3 and 250 m3) , two big generators and three booster pumps pumping water to the next stations. Therefore, this station is a key station for pumping water to Ain Ali pumping station

1. The three booster pumps in Al-Hashyah pumping station are completely swept and damaged by the floods and accordingly

the station is completely out of order. Therefore there is need for three complete sets of booster pumps to bring back the system into order. The main damages and needs for maintenance of Al-Hashyah pumping station are listed in the following table:

No Item specification Qty % effect Remarks

Boreholes ( well no1 , well no2) 35m depth , productivity 10 liter/sec and 5 liter/sec respectively

2 Filled 100%

Poster pump SPCO brand 15 liter/sec, 290 m TDH running by 75 KW dynamo engines

2 Swept away

Poster pump CAPRARI brand 8 liter/sec, 300 m TDH running by 45 KW dynamo engines

1 Swept away

GI pumping line Medium class 6 inch and 4 inch 100 l.m Damaged and swept Connect new tank to pumps

Non return valves 40 bar , 6 inch 3 Swept away

Non return valves 40 bar , 4 inch 1 Swept away

Magnetic water meter 40 bar , 6 inch 2 Damaged 100% and swept

Magnetic water meter 40 bar , 4 inch 1 Damaged 100% and swept

Ductile gate valve 40 bar , 6 inch 2 Damaged 100% and swept

Ductile gate valve 40 bar , 4 inch 1 Damaged 100% and swept

Electrical copper cable 50mm*3 150m Ruptured and swept away

Electrical copper cable 35mm*3 100m Ruptured and swept away

Electrical copper cable 16mm*3 100m Ruptured and swept away

Sensor electrical copper cable 1.5 mm 200m Ruptured and swept away

Zinc shade for poster pumps 9m length and 5m width 100% damaged

Concrete block fence for pumping station 2.4 meter height 97 L.M 100% damaged with earth beams

Al-Hashyah pumping station ( before of flash flood) Al-Hashyah pumping station ( before of flash flood) Al-Hashyah pumping station ( before of flash flood)

1 This station was supported by Oxfam in February 2016 through provision of submersible pump with full set.

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Al-Hashyah pumping station ( during of flash flood) Al-Hashyah pumping station ( during of flash flood) Al-Hashyah pumping station ( during of flash flood)

Al-Hashyah pumping station ( after of flash flood) Al-Hashyah pumping station ( after of flash flood) Al-Hashyah pumping station ( after of flash flood)

Al-Hashyah pumping station ( after of flash flood) Al-Hashyah pumping station ( after of flash flood) Al-Hashyah pumping station ( after of flash flood)

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c) Al-Kubri borehole: Is one of the boreholes serving Hajjah water supply system and located directly under Shares Bridge which was damaged by

the collation airstrike and later eroded by the current flood. This borehole is 10 inch diameter, 60 m depth and 8 liter/sec productivity (28.8m3/h)

and operated JET submersible pump with Franklin engine 37 KW powered by both public electricity and/or two generators in Al-Hashyah station

mentioned above .all components of this borehole have been completely destroyed and filled the borehole with alluvial deposits and accordingly

the borehole is currently an out of service. Please see below photos for Al-Kubri borehole.

The table bellow is showing the status of the Al-Kubri Borehole after flooding

No Item specification Qty % effect Remarks

1 Borehole 10 inch diameter, 60 m depth and 8 liter/sec productivity

1 100% filled by alluvium

2 Pump house with RC slab, beam and columns and concrete block

5*4 meter 1 100% damaged and swept away

3 JET submersible pump with Motor 8 liter/sec productivity and 300m TDH

1 Inside the borehole burred under

alluvium deposits

4 GI pumping line Medium class , 4 inch 12 L.M Swept away

5 Non return valve 40 bar , 4 inch 1 Swept away

6 Magnetic water meter 40 bar , 4 inch 1 Swept away

7 Ductile gate valve 40 bar , 4 inch 1 Swept away

8 Electrical control panel 37 KW 1 Swept away

9 Electric contactors 200 A 1 Swept away

10 Public electricity meter 3 phase 1 Swept away

11 Electrical copper cable 35mm*3 100m Ruptured and swept away

Al-Kubri borehole with its pump house ( before flash flood) Al-Kubri borehole with its pump house ( after flash flood)

Page 6: Report Title : SHARES VALLEY RAPID FLOOD IMPACT ASSESSMENT · 2020. 4. 30. · Report Title : SHARES VALLEY RAPID FLOOD IMPACT ASSESSMENT The assessment conducted on 15th April -2016

Al-Kubri borehole with its pump house was here ( during flash flood) Al-Kubri borehole and pumping house ( after flash flood)

d) Al-A’ajam open dug well: (19 meter depth, 3 meter diameter) is a new open dug well prepared recently and it was under process to install the pump and to connect to the WSS , the main pumping line for this well was already built before some tomes ago. However this well is severely affected by the flash flood and almost 10 meters of the well has been filled with alluvial deposits, the following are the main components of this well which are affected or damaged by the flood:

No Item specification Qty % effect Remarks

1 Open dug well , 10 meter filled by alluvium and lining was partially damaged

19m depth and 3 meter diameter

1 Partially affected

2 Ductile pumping line 6 inch 24 L.M Swept away

3 Non return valve 40 bar, 6 inch 1 Swept away

4 Magnetic water meter 40 bar, 6 inch 1 Swept away

5 Ductile gate valve 40 bar, 6 inch 1 Swept away

Three photos for Al-A’ajam open dug well

General context description: The heavy rainfall precipitated on 13th and 14th April in the high land areas in hajjah governorate and resulted to a violent flash flood has seriously affected a large number of populations who are leaving along the traverse of wadi Shares in Hajjah and Wadi more in Al-Zuhra district of Hodaida governorate were severely affected and caused huge damage on water supply facilities, shelters and also livelihood assets of the communities. As mentioned above, the main water supply system for hajjah City which composed of 4 boreholes, two dug wells and Al- Hashayah pumping station are completely or partially damaged and accordingly the water supply system has ran out of order. Knowing that Hajjah water supply system is supplying water to main Hajjah city and adjoining districts specially Shares district, serving almost 89512 individuals (68856 Host community and 35000 IDPs), in addition to 227 private and commercial facilities and 227 governmental institutions including health facilities and schools. This meant that the entire population in Hajjah City and surrounding villages are currently lacking access to safe water for both drinking and domestic use and signaling a serious risk on the community as a whole. The general situation is seems to be beyond the capacity of the local authorities and local water and sanitation

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corporation to restore the damaged water supply system immediately and bring back the system into order. As such quick support is required from the humanitarian agencies to rescue the life of thousand of people in Hajjah City and its surrounding village whose were supported by the affected water supply system. As such the communities in hajjah City and surrounding villages will oblige to seek water from the contaminated sources in the wadi and stagnant water from the rainfall and this make the community highly prone to the water, sanitation and hygiene related diseases specially diarrhea outbreak is highly expected unless the situation addressed promptly as the impact of WSS is affecting all other sectors. Assistant provided so far:

As of 16th April 2016, only WHO and Al-Amal local NGO are responded to the emergency situation in Shares area where affected by the flood. WHO

provided some medical aids to affected people and Al-Amal local NGO provided some tents only. However there is still need for shelters as 150 hhs are at risk and need to be relocated.

The main needs for rehabilitation of the affected water supply systems are detailed in the section 5 above. Please see also recommendation and the required action plan below.

5. Recommendations and action plan needed :

Based on the context described above, observation during the visit and discussion with the technical and management team of Hajjah WSLC and deputy governor, the following actions are cited as the top priorities to be considered to meet the affected communities, especially the population in Hajjah City to resume water supply system and mitigate the shock and likelihood of disease spreading as a result of the current situation: 1- To recover Al-Hashyah open dug well, this requires removal of the alluvial deposit and recue of pumps which burred inside the well to bring back

the well into the system as soon as possible. 2- Urgent provision/replacement of complete sets of the three damaged boster pumps for Al-Hashyah pumping station, this pumping station is the

main water supply station that supporting whole Hajjah City with water and currently the station is completely out of services ( see section 5 above for the required items to restore this station).

3- Constriction of protection wall for the pumping station is crucial prior or parallel to installation of any pump to avoid further damage as the rainy season is just stated, this has been discussed with authorities including deputy governor and LWSC and it has been taken as priority action to be executed.

4- To restore and rehabilitate of Al-Kubri well borehole, however this can done in the late stage as the priority for the time being is to restore A-Hashyah open dug well and Al-hashyah pumping station.

5- Hygeine promotion campaign on diarrhea and malaria prevention and treatment is a crucial activity to be undertaken as the situation is quite fragile and suitable for spreading of such diseases considering expected rainfall in the coming period, in addition to the water crisis caused by the damage of the WSS.

6- Latrines for the directly affected communities and those 150 HHs to be relocated should be considered.