TIOMBO DELO!
LES BASSINS DE RÉTENTION D’EAU À PETITE RIVIÈRE NOIRE Location
Grande Riviere Noire
Why this site?
Problematic
This is where we did the interview with Priscilla L’intelligente with her famous phrase, “Riviere Noire dans Nwar.” A very brave woman who welcomed us in front of her house told us about the situation of these villages on the South West Coast in all honesty. They are worried about inflation and also about the future of their children in the face of the lack of employment, opportunity for entrepreneurship and land for housing.
Les Salines Koening Peitite Riviere Noire
Petite Case Noyale
(Uncertainity of Income)
The majority of men work either as construction workers, gardener and there is only one registered fisherman. The ladies work part-time as nannies or housekeepers. 25% of the time he does not work, on the one hand because the job is often part-time and the industries present face seasonalities. Current economic activities are not sustainable in the long term. It does not offer financial stability to these inhabitants. On the other hand, there is the lack of training of these inhabitants to be able to really integrate the hotel industry.
“ICI LAVI LI TRAVAILLE, MANZER, BWAR EK SOU PARSKI TRACAS OSSI LI BOKU”
Grande Case Noyale
- PRISCILLA L’INTELLIGENTE LOCAL INHABITANT
La Gaulette Chamarel Cotteaux Raffin
SOUTH WEST COAST OF MAURITIUS Le Morne
IN BETWEEN GRANDE RIVIERE NOIRE AND LE MORNE
AT PETITE RIVIÈRE NOIRE VILLAGE
Territorial Context There is a very interesting situation where this small village will soon be surrounded by substantial real estate and hotel developments around Les Salines Koenig and Îlot Malais.
CONSTRUCTION WORKER
2025 PROJECTION
GARDENER
FISHERMAN
HANDNOTES DURING INTERVIEW
Investigation on the Flood Problem
GRN
LEGEND
PDS HARMONIE GOLF 10 H OTE LS
DOMAINE LA PAILLE
CATCHMENT AREA OF PETITE RIVIERE NOIRE FLOOD PLAIN
Les Salines Koening
MUD FLATS
DOMAINE DE PALMYRE PRN
CASE NOYALE
PDS POINTE OSCORNE
Domaine de Palmyre
Catchment Area 993 HA
PETITE RES Les MultiRIVIÈRE NOIRE pliants
LA GAULETTE
LCP
COTTEAUX RAFIN
Chassée de Ravel
O’RAFFIN HAVEN
Mountain Ridge line
GOING TO BE RAPIDLY SURROUNDED BY PDS AND HOTEL PENINSULA PROJECTS
CONTEXT IN RELATION TO LAND USE
The Flood Problem
SCHEMA OF CATCHMENT AREA OF PETITE RIVIÈRE NOIRE DANS RIVER The site has a vast catchment area of nearly 1,000 HA. This catchment area also includes Domaine de Palmyre which is the subject to concreting of the mountain and which also justifies the presence of mud banks near the village. The downside is that the environmental impact studies are done only on the plot limits and as long as the developer releases the water from his plot onto the river, he is not legally responsible for the consequences downstream. In the future, 35% of this catchment area could be further impermeablised. A closer analysis shows us that this village can no longer expand, delimited by the coastal road (in red), the coastline and river banks (in blue) and also by flood plains (in pink). My first intentions were to build a series of wet retention basins at the convergence of the affluents and natural land drainage paths of the river. The red boundary demonstrates the river reserves (16m), which is common property. Circled in black are areas that will become retention basins. Their objective is to solve the problem of flooding by also connecting it to a network of drains which will flow into the sea to the south of the village. On the other hand, pedestrian and cycle connections in orange through existing green spaces to achieve better social cohesion and use of common spaces. This landscape intervention is divided into 4 sequences.
Flooding in Petite Rivière Noire November 2nd, 2018 Source: L’Express https://lexpress.mu/article/342204/petite-riviere-noire-pont-impraticable-maisons-inondees
Fatima Bridge collapsed at Petite RIviere Noire February 22nd, 2011 Source: L’Express https://lexpress.mu/article/inondations-un-pont-submergé -à-Petite-Rivière-Noire
Preliminary Design Intentions
1
COASTAL MAIN ROAD
VILLAGE ENTRANCE
KINDERGARDEN
Séquence 1
PRISCILLA HOUSE
Séquence 4
4
Séquence 3
Séquence 2
2
3
Fatima Bridge rebuilt with a large drain for the River (Cross section 4.2m x 2.1m)
Small drain along coastal road edge (Cross section 0.8m x 0.7m)
INVESTIGATION
Drain for internal roads (Cross section 1.0m x 0.8m)
ENSA Nantes Mauritius S7 BEYOND BURBS 2022-2023 SUNKUR HARIKESH
TIOMBO DELO!
LES BASSINS DE RÉTENTION D’EAU À PETITE RIVIÈRE NOIRE MATERIALITY
Local know-how of fishermen, an art that is being lost.
LOCAL CONSTRUCTION TECHNIQUES
WEAVING OF METAL WIRES TO CREATE CHAINLINK
PROGRAM:
PHOTOS OF PHYSICAL MODEL
PUTTING REBARS ACROSS TO FORM THE SHELL OF THE CAGE
1
RIVER FISH FARM
2
WATERPARK
3
LANDSCAPED DRAIN
4
MARINE ESTUARY
Barachois
1
Bassin Poisson 3
Drain embas pied
2
Waterpark Cascade
WORKINGS FOR BASE MODEL FOR GABION BASKET
2 Fish Farm Cascade Waterpark
1
ACTORS: - LOCAL INHABITANTS - PDS DEVELOPPERS BECAUSE OF FLOOD IMPACT - TOURISM AUTHORITY
3
4
SKETCH OF TYPICAL LONGITUDINAL SECTION THROUGH FISH FARM
A landscaped Land Drainage System SKETCH OF TYPICAL TRANSVERSAL SECTION THROUGH CASCADE WATERPARK
ACTORS: - NATIONAL RISK REDUCTION AND DISASTER MANAGEMENT - DISTRICT COUNCIL OF BLACK RIVER - CORPORATE SOCIAL RESPONSIBILITY FUND FROM NEW HOTELS
SKETCH OF TYPICAL SECTION OF LANDSCAPED DRAIN
4
A Marine Estuary / Barachois
REFERENCE: PERMEABLE STRUCTURES IN INDONESIA ACTORS: - MINISTRY OF FISHERIES - LOCAL INHABITANTS - PRIVATE FUNDING
ME AS AN ARCHITECT
SKETCH OF TYPICAL SECTION OF GABION WALL
Myself living in a village that also suffers from floods, I find this situation really frustrating. It is irrevocable that the authorities are aware of these problems, I would even say since 2008 even, 15 years already but there are still no actions to solve this problem definitively.
CONCEPT
INTERVENTION
The beauty of this project for me was to take a simple construction technique, the gabion as a singular idea to express myself and make very clear statements, without dilution in the face of constraints, compromises or negotiations.
It is a project that will act as a trigger, through the storage of water and by making lands no longer flood prone. This produces a field of possibilities for collective action and intelligence, such as the possibilty of market gardening on the edge of road reserves and the extension of the village on the other side of the road.
ENSA Nantes Mauritius S7 BEYOND BURBS 2022-2023 SUNKUR HARIKESH