1.2 Coordonnées des personnes-ressources et des institutions impliquées dans l'évaluation et la documentation de la Technologie

Nom du projet qui a facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Book project: where people and their land are safer - A Compendium of Good Practices in Disaster Risk Reduction (DRR) (where people and their land are safer)

Nom du ou des institutions qui ont facilité la documentation/ l'évaluation de la Technologie (si pertinent)

Swiss Red Cross (Swiss Red Cross) - Suisse

1.3 Conditions relatives à l'utilisation par WOCAT des données documentées

Quand les données ont-elles été compilées (sur le terrain)?

04/10/2016

Le compilateur et la(les) personne(s) ressource(s) acceptent les conditions relatives à l'utilisation par WOCAT des données documentées:

Oui

1.4 Déclaration sur la durabilité de la Technologie décrite

Est-ce que la Technologie décrite ici pose problème par rapport à la dégradation des terres, de telle sorte qu'elle ne peut pas être déclarée comme étant une technologie de gestion durable des terres?

Non

Commentaires:

The technology presented has no direct bearing on land degradation.

1.5 Référence au(x) questionnaire(s) sur les Approches de GDT

2.1 Courte description de la Technologie

Définition de la Technologie:

Emergency infrastructure including shelter and linked transport infrastructure, consists in establishing specific flood shelters (for people and animals) including flood-proof collective water sources and communication infrastructure as well as health and school facilities that may serve at the same time as emergency shelters during floods.

2.2 Description détaillée de la Technologie

Description:

The technology applies to the specific context of the ‘Char’ land in Bangladesh, characterised as riverine sandy Islands along the Jamuna River. More than 80% of the land in the intervention area can be classified as 'Char' and is inhabited by 60% of the population served by the project. Every year, especially during floods, the rivers deposit huge amount of silt sediment that makes the land fertile. At the same time, river action washes away some portion of the 'Char' which at times can be quite large and has a strong impact on people's lives and livelihoods. Before the intervention, people living on 'Char' land depended on their traditional early warning mechanisms and were frequently surprised by floods that destroyed their crops and put their lives in danger. Due to recurring floods, people didn’t have the means to improve their built environment. The 'Char' land is furthermore characterised by its lack of public infrastructure and remoteness to public services.

The technology consists of setting up an emergency infrastructure and ensuring community access to these infrastructures during times of floods. It has to be understood in close interrelation with the approach of setting up an early warning system. The emergency infrastructure includes specific flood shelters (for people and animals), flood-proof collective water sources and sanitation systems, transport infrastructure such as foot bridges and elevated rural roads, as well as flood-proof health and school facilities that also serve as emergency shelters during floods. The flood shelters are built on a raised bed of soil and located at sites selected by the communities that are relatively better protected from flood and river erosion within the 'Chars'. The purpose of the technology is to ensure safety of life and protection of assets during times of emergency and also to mitigate sufferings related to floods. The flood shelter is an elevated plane land which is on an average 220 square feet by size and at least five feet high from the existing ground level. The site is selected by the community and should be connected through an elevated road to the nearest community. This arrangement helps people to get easy access during times of floods. The shelter has collective hygienic latrine facilities and safe water sources. People generally dismantle their housing while evacuating and reinstall it on the flood shelter.
The major activities include facilitating the development of community-led risk reduction action plans and their implementation through community participation and engagement of local governance institutions. This includes maintenance of the built infrastructure as the joint responsibility of the community and the local government. Land use, especially sowing and harvesting, is increasingly linked to flood related forecasting measures which has led to significant adaptation in the timing of farming activities. This coupled with the creation and access to emergency infrastructure allows for a relatively safe and healthy living. The adopted technology and approach has led to adapted livelihoods, reduced health costs and increased income. The technology has furthermore led to mainstreaming disaster risk management in policies and approach of local government institutions. Increasingly the local government’s cash and food for work programmes are targeting establishment and/or reinforcement of emergency infrastructure that can cater to larger population. Increased investments are made especially towards flood shelters and improving communication and access to emergency infrastructure. Since the technology is based on local knowledge and has been developed in consultation with the involved communities, it is generally well accepted with a fair degree of ownership and involvement. However, parts of the region are also prone to river erosion and this has a destructive impact on built infrastructures. The technology does not assure any safeguard against this form of uncertain river action.

2.3 Photos de la Technologie

2.5 Pays/ région/ lieux où la Technologie a été appliquée et qui sont couverts par cette évaluation

2.6 Date de mise en œuvre de la Technologie

Indiquez l'année de mise en œuvre:

2014

Si l'année précise est inconnue, indiquez la date approximative: :

• il y a moins de 10 ans (récemment)

2.7 Introduction de la Technologie

Spécifiez comment la Technologie a été introduite: :

• dans le cadre d'un système traditionnel (> 50 ans)
• par le biais de projets/ d'interventions extérieures

Commentaires (type de projet, etc.) :

The technology has elements of traditional practice (raised plinths for flood protection) and project promoted interventions (emergency shelter and access infrastructure).

3.1 Principal(aux) objectif(s) de la Technologie

• réduire les risques de catastrophes
• créer un impact économique positif
• créer un impact social positif

3.2 Type(s) actuel(s) d'utilisation des terres, là où la Technologie est appliquée

Commentaires:

Despite the lack of public infrastructure and services and being exposed to natural hazards people tend to prefer to live in the 'Char' as it brings significant economic benefits for them: crops grow rapidly and abundantly with significantly lower input costs than on the mainland.

3.3 Informations complémentaires sur l'utilisation des terres

Approvisionnement en eau des terres sur lesquelles est appliquée la Technologie:

• mixte: pluvial-irrigué

Commentaires:

Water supply for the land comprises a mix of rainfed, irrigated and post flooding sources.

Nombre de période de croissance par an: :

• 3

Précisez:

Kharif (monsoon crop), Rabi (winter crop), and Summer/pre-monsoon crop

Densité d'élevage/ chargement (si pertinent):

Cow, buffalo, goat, lamb and donkey are very common in the area. People rear these for cultivation, transportation and for having meat. Every household have at least a pair or more of livestock.

3.4 Groupe de GDT auquel appartient la Technologie

• Emergency infrastructure, shelter and linked transportation infrastructure

3.5 Diffusion de la Technologie

Spécifiez la diffusion de la Technologie:

• répartie uniformément sur une zone

Si la Technologie est uniformément répartie sur une zone, indiquez la superficie couverte approximative:

• 1-10 km2

Commentaires:

Though emergency infrastructures are built at specific sites, their use and benefits are evenly spread over an expanded area.

3.6 Mesures de GDT constituant la Technologie

Commentaires:

In addition to the structural and management measures described above, the technology involves additional elements such as flood-proof collective water supply and sanitation systems and communication infrastructure.

3.7 Principaux types de dégradation des terres traités par la Technologie

Commentaires:

N/A

3.8 Prévention, réduction de la dégradation ou réhabilitation des terres dégradées

Spécifiez l'objectif de la Technologie au regard de la dégradation des terres:

• s'adapter à la dégradation des terres

Commentaires:

NA

4.1 Dessin technique de la Technologie

4.2 Spécification/ explications techniques du dessin technique

The built structural mitigation options have following technical specification:
1. Flood shelter: Dimension: Length-220' x Width-220' x Height- 5.5', Slope: 1:1.5, Capacity: 350 families, Construction material used: soil and turfing (grass)
2. Raised school compound: Dimension: Length-112' x Width-75' x Height- 5.5', Slope: 1:1.5, Capacity: 540 person, Construction material used: soil and turfing (grass)
3. Community Resource Centre and Community Clinic (CRC-CC): Dimension: Length-60' x Width-38' x Height- 5.6', Slope: 1:1.5, Capacity: 1500 families from 5 villages, Construction material used: soil and grass plantation, bricks, sand, cement, rod, iron angel and CGI sheet.
4. Disaster resilient tube well: Dimension: Length-5' 10" x Width-5' x Height- 3', Boring: 100 feet, Capacity: 200 families, Construction material used: bricks, sand, cement, rod, tube well head, pvc pipe, cylinder, piston rod etc. Vertical intervals: 2 in each village.
5. Concrete platform for (existing) tube well: Dimension: Length-4' 10" x Width-4' x Height- 1', Capacity: 100 families, Construction material used: bricks, sand, cement, pvc pipe
6. Wooden bridge: Dimension: Length-99' x Width-7' x Height- 12', Slope: 1:1.5, Capacity: 900 families approximately, Construction material used: wood, nails, tar, soil and grass plantation
7. Road construction/repair: Dimension: Length-925' x Width-12' x Height- 3' (from existing level), Slope: 1:1.5, Capacity: 3 villages (approx:1000 families), Construction material used: soil and turfing (grass).

4.3 Informations générales sur le calcul des intrants et des coûts

Spécifiez la manière dont les coûts et les intrants ont été calculés:

• par entité de la Technologie

autre/ monnaie nationale (précisez):

Bangladeshi Taka (BDT)

Indiquer le taux de change du dollars en monnaie locale (si pertinent): 1 USD= :

79,0

4.4 Activités de mise en place/ d'établissement

	Activité	Type de mesures	Calendrier
1.	Construction of Flood Shelter	Structurel	During dry season
2.	Raising school compound	Structurel	During dry season
3.	Construction of Community Resource Center (CRC)	Structurel	During dry season
4.	Installation of disaster resilient tube well	Structurel	During dry season
5.	Construction of concrete platform for (existing) tube well	Structurel	During dry season
6.	Construction of wooden bridge	Structurel	During dry season
7.	Road construction above flood level	Structurel	During dry season

Commentaires:

All activities are structural in nature and can be undertaken efficiently only in dry season.

4.5 Coûts et intrants nécessaires à la mise en place

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	Flood shelter: earth work	m3	8000,0	64,0	512000,0	10,0
Main d'œuvre	CRC: earth work	m3	53,0	138,0	7314,0	10,0
Main d'œuvre	CRC: sand filling	m3	302,0	99,0	29898,0	10,0
Main d'œuvre	Raised school compound: earth work	m3	1790,0	64,0	114560,0	10,0
Matériel végétal	Flood shelter: grass plantation (turfing)	m2	4620,0	13,0	60060,0	10,0
Matériel végétal	Flood shelter: seedlings	piece	20,0	53,0	1060,0	10,0
Matériel végétal	CRC: grass plantation (turfing)	m2	3890,0	13,0	50570,0	10,0
Matériel végétal	CRC: seedlings	piece	50,0	53,0	2650,0	10,0
Matériel végétal	Raised school compound: grass plantation (turfing)	m2	1390,0	13,0	18070,0	10,0
Matériel végétal	Raised school compound: seedlings	piece	40,0	53,0	2120,0	10,0
Matériaux de construction	CRC: roof truss	kg	4375,0	100,0	437500,0
Matériaux de construction	CRC: grill and iron work	m2	88,0	2091,0	184008,0
Matériaux de construction	CRC: gypsum board	m2	478,0	922,0	440716,0
Matériaux de construction	CRC: RCC work	m3	2,9	19557,0	56715,3
Matériaux de construction	CRC: deformed bar	kg	397,0	85,0	33745,0
Matériaux de construction	CRC: boundary fencing	m2	184,0	440,0	80960,0
Matériaux de construction	CRC: brick work	m3	44,0	5515,0	242660,0
Autre	CRC: electric ware and solar panel	lumpsum	1,0	73000,0	73000,0
Autre	CRC: water supply	lumpusm	1,0	66150,0	66150,0
Autre	CRC: transportation	lumpsum	1,0	89000,0	89000,0
Coût total de mise en place de la Technologie					2502756,3

Si le coût n'est pas pris en charge à 100% par l'exploitant des terres, indiquez qui a financé le coût restant:

10% of all construction cost (except community resource center) is borne by the user. Another 15% is provided by the local government bodies. The remaining 75% is subsidised by the project.

Commentaires:

Defining costs of establishment is bit tricky as the measures differ in size and number, costs vary from one village to another depending on the geographical location. However, average costs of the measures further to those highligted in the table are given below:
Disaster resilient tube well: labour (mason) 3'000, equipment (drilling charge) 1800, construction material (bricks, cement, sand, iron rod, PVC pipe, cylinder, GI pipe, tubewell head) 23'250, transportation 2'650, total unit costs (BDT) 30'700
Concrete platform for (existing) tube well : labour (mason) 600, construction material (bricks, cement, sand) 2'450, other (Transportation, waste water disposal) 1650, total unit costs (BDT) 4'700
Wooden bridge: labour (mason, mason assitant, painting assistant, earthwork) 30'000, plant material (grass plantation) 12'500, equipment (painting brush etc.) 1'000, construction material (timber, nails, tar, tarpin oil, paint) 260'000, Transportation 30'000, total unit costs (BDT) 333'500
Road construction/repair: labour (earthwork) 102'500, plant material (grass plantation/turfing), 12'500, total unit costs (BDT) 115'000

4.6 Activités d'entretien/ récurrentes

	Activité	Type de mesures	Calendrier/ fréquence
1.	Construction of Flood Shelter	Structurel	During dry season
2.	Raising school compound	Structurel	During dry season
3.	Construction of Community Resource Center (CRC)	Structurel	During dry season
4.	Installation of disaster resilient tube well	Structurel	During dry season
5.	Construction of concrete platform ror (existing) tube well	Structurel	During dry season
6.	Construction of wooden bridge	Structurel	During dry season
7.	Road construction above flood level	Structurel	During dry season

Commentaires:

Due to the softness of the sandy soil and the annual inundation, every measure requires considerable maintenance. The flooding generally washes out sands and decays the foundation of the structure. If maintenance is done in regular intervals, the entire structure remains functional. Also, grass needs to be frequently replanted as it dries up during the dry season.
The users and the local government (Union Disaster Management Committee) are mainly responsible for maintenance of all built assets and structures including the Community Resource Center. The relevant operation/repair and maintenance training has been provided by the project.. Maintenance manuals and guidelines have been developed and disseminated. Also, repair and maintenance equipment has been provided to cadre of users/caretakers trained in repair/maintenance work.

4.7 Coûts et intrants nécessaires aux activités d'entretien/ récurrentes (par an)

	Spécifiez les intrants	Unité	Quantité	Coûts par unité	Coût total par intrant	% des coût supporté par les exploitants des terres
Main d'œuvre	Earthwork	m3	80,0	63,0	5040,0	10,0
Main d'œuvre	Sand bag filling	piece	50,0	15,0	750,0	10,0
Main d'œuvre	Pipe fitting	piece	2,0	300,0	600,0	10,0
Main d'œuvre	Mason	lumpsum	1,0	500,0	500,0	10,0
Matériel végétal	Grass plantation (turfing)	m2	85,0	13,0	1105,0	10,0
Matériel végétal	Seedlings	piece	15,0	53,0	795,0	10,0
Matériaux de construction	Plastic bag	piece	50,0	10,0	500,0	10,0
Matériaux de construction	PVC pipe	m	15,0	120,0	1800,0	10,0
Matériaux de construction	Polythene pipe	kg	5,0	160,0	800,0	10,0
Matériaux de construction	Ciment	bag	0,5	540,0	270,0	10,0
Matériaux de construction	Sand	ft3	5,0	18,0	90,0	10,0
Matériaux de construction	Caping socket	piece	2,0	35,0	70,0	10,0
Matériaux de construction	Tape etc.	lumpsum	1,0	250,0	250,0	10,0
Coût total d'entretien de la Technologie					12570,0

Si le coût n'est pas pris en charge à 100% par l'exploitant des terres, indiquez qui a financé le coût restant:

Maintenance costs are to date (2017) distributed as construction (10% by the users, 15% by the local government). A cost transfer scheme to the users and local government for maintenance is developped to be applied in the follow-up phase.

Commentaires:

Again, defining costs of maintenance is also not easy as the measures differ in size and number. Average costs of the measures, further to those for flood shelter including disaster resilient tube well as highligted in the table, are given below:
Raised school compound: labour (earth work and sand bag filling) 7'800, plant material (grass plantation) 1'000, construction material (plastic bag, rope) 500, total unit maintenance costs (BDT) 9'300
Community resource Center (CRC): labour 1'200, plant material (grass plantation, seedlings) 10'500, Transportation 1'000, total unit maintenance costs (BDT) 12'700
Concrete platform for (existing) tube well : labour (mason) 500, construction material (bricks, cement, sand) 600, total unit maintenance costs (BDT) 1'100
Wooden bridge: labour (earthwork) 2'500, plant material (grass plantation) 3'000, construction material (plastic bag, rope) 2'000, total unit maintenance costs (BDT) 7'500
Road construction/repair: labour (earthwork) 10'000, plant material (grass plantation/turfing), 1'500, construction material (plastic bag, rope) 500, total unit maintenance costs (BDT) 12'000

4.8 Facteurs les plus importants affectant les coûts

Décrivez les facteurs les plus importants affectant les coûts :

Transportation of raw material from the mainland to the sites on the 'Char' Islands varies across seasons. In the dry season it is much higher compared to monsoon as the delivery of material is easier in the latter due to extended river outreach.

5.1 Climat

5.2 Topographie

Indiquez si la Technologie est spécifiquement appliquée dans des:

• non pertinent

Commentaires et précisions supplémentaires sur la topographie:

Information on altitudinal zone collected from the website: www.getamap.net

5.3 Sols

Si disponible, joignez une description complète du sol ou précisez les informations disponibles, par ex., type de sol, pH/ acidité du sol, capacité d'échange cationique, azote, salinité, etc.

N/A

5.4 Disponibilité et qualité de l'eau

La salinité de l'eau est-elle un problème? :

Non

La zone est-elle inondée?

Oui

Régularité:

fréquemment

Commentaires et précisions supplémentaires sur la qualité et la quantité d'eau:

In the dry season water crisis occurs. Open defecation and use of pesticide in farming are key pollutants of water sources.

5.5 Biodiversité

Commentaires et précisions supplémentaires sur la biodiversité:

Biodiversity can be rated as moderate or medium both in terms of species and habitat. It is stable and and often self generating.

5.6 Caractéristiques des exploitants des terres appliquant la Technologie

Indiquez toute autre caractéristique pertinente des exploitants des terres:

N/A

5.7 Superficie moyenne des terres détenues ou louées par les exploitants appliquant la Technologie

5.8 Propriété foncière, droits d’utilisation des terres et de l'eau

Propriété foncière:

• état
• individu, sans titre de propriété

Droits d’utilisation des terres:

• accès libre (non organisé)
• loué

Droits d’utilisation de l’eau:

• communautaire (organisé)
• individuel

Commentaires:

Land ownership is quite complex as Chars by nature are unstable habitats. In principle land is owned by state but in most cases the politician - musclemen nexus exercises real control. This results in leasing and renting of land which is the predominant form of land ownership in Chars.

5.9 Accès aux services et aux infrastructures

6.1 Impacts sur site que la Technologie a montrés

Impacts socio-économiques

Production

Disponibilité et qualité de l'eau

Revenus et coûts

Impacts socioculturels

Impacts écologiques

Cycle de l'eau/ ruissellement

Réduction des risques de catastrophe et des risques climatiques

6.2 Impacts hors site que la Technologie a montrés

Commentaires concernant l'évaluation des impacts:

N/A

6.3 Exposition et sensibilité de la Technologie aux changements progressifs et aux évènements extrêmes/catastrophes liés au climat (telles que perçues par les exploitants des terres)

Extrêmes climatiques (catastrophes)

Catastrophes météorologiques

	Comment la Technologie fait-elle face à cela?
pluie torrentielle locale	modérément
tempête de sable/ de poussière locale	bien
tempête de vent locale	bien

Catastrophes climatiques

	Comment la Technologie fait-elle face à cela?
canicule	bien
vague de froid	bien
sécheresse	bien

Catastrophes hydrologiques

	Comment la Technologie fait-elle face à cela?
inondation générale (rivière)	bien
glissement de terrain	pas bien

Commentaires:

In some cases the appropriate answer would have been "not applicable" but since this is not there, we have selected "well".

6.4 Analyse coûts-bénéfices

Quels sont les bénéfices comparativement aux coûts de mise en place (du point de vue des exploitants des terres)?

Quels sont les bénéfices comparativement aux coûts d'entretien récurrents (du point de vue des exploitants des terres)?

Commentaires:

The limited returns that have been generated by the project is highly valued by the users from a cost - benefit perspective; especially when they understand that the project is not directly linked to land management practices. Thus, the indirect benefits are perceived to have high value.

6.5 Adoption de la Technologie

• plus de 50%

Si disponible, quantifiez (nombre de ménages et/ou superficie couverte):

Out of a total of 8828 HHs targeted by the project, around five thousand HHs in three union have benefitted from the implementation of the technology.

Parmi tous ceux qui ont adopté la Technologie, combien d'entre eux l'ont fait spontanément, à savoir sans recevoir aucune incitation matérielle ou aucun paiement?

• 0-10%

6.6 Adaptation

La Technologie a-t-elle été récemment modifiée pour s'adapter à l'évolution des conditions?

Oui

Si oui, indiquez à quel changement la Technologie s'est adaptée:

• la disponibilité de la main-d'œuvre (par ex., en raison de migrations)

Spécifiez l'adaptation de la Technologie (conception, matériaux/ espèces, etc.):

Dredging machine has been used for building some emergency infrastructure at few sites due to unavailability of labour at the time of construction.

6.7 Points forts/ avantages/ possibilités de la Technologie

Points forts/ avantages/ possibilités du point de vue de l'exploitant des terres
Emergency structures are collectively owned and have a multipurpose use; in 'normal' (non-emergency) times they are used for other purpose than safety and protection which includes community meeting, workshop and training
Expanded opportunities of communication during flood

Points forts/ avantages/ possibilités du point de vue du compilateur ou d'une autre personne ressource clé
Community is aware and driven to implement flood preparedness and risk reduction measures on its own
Appropriate measures can significantly change people's mindset and behaviour

6.8 Faiblesses/ inconvénients/ risques de la Technologie et moyens de les surmonter

Faiblesses/ inconvénients/ risques du point de vue de l’exploitant des terres	Comment peuvent-ils être surmontés?
River erosion threatens built structures	Careful site selection for construction work through in depth discussion with community people supported by scientific analysis
High investment needed for building physical structures (e.g. CRC building) in the char which the local government and community find difficult to finance without external support.	Install portable semi-permanent structures in the char; Lobby for greater decentralisation of finances to local government

Faiblesses/ inconvénients/ risques du point de vue du compilateur ou d'une autre personne ressource clé	Comment peuvent-ils être surmontés?

7.1 Méthodes/ sources d'information

7.2 Références des publications disponibles

Titre, auteur, année, ISBN:

Latrine and Tube well maintenance manual, SRC-BDRCS-DASCOH

Disponible à partir d'où? Coût?

SRC