modgnikehtotsyek
ALLE WETTBEWERBSERGEBNISSE, AUSSCHREIBUNGEN UND JOBS Jetzt Newsletter abonnieren
1. Preis 2 / 3 3. Preis

Offener Wettbewerb | 05/2015

RESEARCH BY DESIGN: EXPLORING RESILIENCE Test Site: Osumi Island in Berat, Albania

The river stages should become a visible part of the city again. This is done by using the pedestrian bridge, that in case of high river discharge (i.e. flood hazard) is turned upwards.

©felixx | UNESCO-IHE | POLIS University

The river stages should become a visible part of the city again. This is done by using the pedestrian bridge, that in case of high river discharge (i.e. flood hazard) is turned upwards.

Seasonal Isles

2. Preis

Preisgeld: 10.000 EUR

felixx

Landschaftsarchitektur

UNESCO-IHE

UniversitÀten / Hochschulen

POLIS University

UniversitÀten / Hochschulen

BETEILIGTE HINZUFÜGEN

ErlÀuterungstext

SEASONAL ISLES
A DROUGHT & FLOOD RESILIENT FUTURE FOR BERAT

The seasonal variability in discharge of the Osum river is large: during summer the river’s baseflow barely sustains a small stream while in spring the steep river basin can significant floods. Thus, coping with such extremes requires a design that can accommodate periods of drought as well as abundance of water while ensuring value and use to the city of Berat.

These observations change the focus of the task. The issue is not only how to make Berat’s islands more resilient high water, but maybe more importantly, how to maintain the river during summer and early autumn when water levels barely sustain a stream and the riverbed is dominated by sandbanks covered with low quality vegetation and deposited litter.

The outcome is therefore to develop Berat’s river islands as resilient systems, able to cope with the hydrologic conditions from all seasons. To make the Berat islands both flood and drought resilient; to be able to cope with extremes. Yet the issue most of all is to develop an active use of the river and to reestablish the connection between Berat, the Osum river and the neglected sandbanks that are currently part of its facade.

DESIGN STRATEGIES
CONTROLLED DYNAMICS

Manipulating the river flow patterns by a ‘building with nature’-approach provides the tools to develop a design strategy that is not only resilient to both droughts and floods, but also enhances the usability of the islands by providing a more resilient basis for use. The design consists of 4 main pillars:

1. GIVE BERAT A RIVER.
Ensure a minimal, steady streamflow during dry periods along a defined channel. The river is guided by a first system of low curbs.

2. DEVELOP THE BERAT ISLANDS.
By partially protecting the crests of the existing sandbanks, the contours of the islands are to a certain extent stabilized. The islands therefore become more robust and better equipped for vegetation and hosting activities. The river is guided by a second system of higher curbs.

3. USE THE SEASONS TO SHAPE THE LAND.
By carefully adjusting to the different water levels associated to the seasonal variability, a design has been developed in which the islands shrink and grow, reaching a minimal footprint during winter and early spring when water levels are highest, and a maximal extent during summer when only a steady streamflow is reached. Controlled sedimentation and erosion ensures future development of the islands and deepening of the canals, hence: building with nature.

4. INTEGRATE EARLY WARNING INTO BERAT.
Extreme peak flows during winter and early spring could provide a possible flood hazard for Berat. Climate change will only increase those extremes. It is therefore essential to not only develop an early warning system for floods, but also to integrate early warning in the city of Berat to ensure awareness among Berat’s citizens and to restore the relation to the river by creating visible signposts. The bridge, used to make the islands accessible, is opened in periods of flood hazard. As such the opened bridge prevents the accessibibility of the islands, and functions as a striking landmark to warn the inhabitants of Berat for the high water.
These main focus points provide the basic framework from which the design is developed. Instead of focusing on objects or functions, the proposal is approached from the different seasons and the associated river characteristics.
The river stages should become a visible part of the city again. This is done by using the pedestrian bridge, that in case of high river discharge (i.e. flood hazard) is turned upwards.

©felixx | UNESCO-IHE | POLIS University

The river stages should become a visible part of the city again. This is done by using the pedestrian bridge, that in case of high river discharge (i.e. flood hazard) is turned upwards.

The river stages should become a visible part of the city again. This is done by using the pedestrian bridge, that in case of high river discharge (i.e. flood hazard) is turned upwards.

©felixx | UNESCO-IHE | POLIS University

The river stages should become a visible part of the city again. This is done by using the pedestrian bridge, that in case of high river discharge (i.e. flood hazard) is turned upwards.

The Berat Island competition centers around a group of temporal islands in the Osum River

©felixx | UNESCO-IHE | POLIS University

The Berat Island competition centers around a group of temporal islands in the Osum River

The Berat Island competition centers around a group of temporal islands in the Osum River

©felixx | UNESCO-IHE | POLIS University

The Berat Island competition centers around a group of temporal islands in the Osum River

The Berat Island competition centers around a group of temporal islands in the Osum River

©felixx | UNESCO-IHE | POLIS University

The Berat Island competition centers around a group of temporal islands in the Osum River

Current situation - During the driest periods only a small stream is flowing through Berat leaving most of the riverbed exposed

©felixx | UNESCO-IHE | POLIS University

Current situation - During the driest periods only a small stream is flowing through Berat leaving most of the riverbed exposed

Current situation - During the driest periods only a small stream is flowing through Berat leaving most of the riverbed exposed

©felixx | UNESCO-IHE | POLIS University

Current situation - During the driest periods only a small stream is flowing through Berat leaving most of the riverbed exposed

Current situation - During the driest periods only a small stream is flowing through Berat leaving most of the riverbed exposed

©felixx | UNESCO-IHE | POLIS University

Current situation - During the driest periods only a small stream is flowing through Berat leaving most of the riverbed exposed

Current situation - In spring the steep river basin can cause peak discharge levels that almost mimic those of flash floods

©felixx | UNESCO-IHE | POLIS University

Current situation - In spring the steep river basin can cause peak discharge levels that almost mimic those of flash floods

Current situation - In spring the steep river basin can cause peak discharge levels that almost mimic those of flash floods

©felixx | UNESCO-IHE | POLIS University

Current situation - In spring the steep river basin can cause peak discharge levels that almost mimic those of flash floods

Current situation - In spring the steep river basin can cause peak discharge levels that almost mimic those of flash floods

©felixx | UNESCO-IHE | POLIS University

Current situation - In spring the steep river basin can cause peak discharge levels that almost mimic those of flash floods

Current situation - Because of the seasonal variability, the islands' morphology is continually changing

©felixx | UNESCO-IHE | POLIS University

Current situation - Because of the seasonal variability, the islands' morphology is continually changing

Current situation - Because of the seasonal variability, the islands' morphology is continually changing

©felixx | UNESCO-IHE | POLIS University

Current situation - Because of the seasonal variability, the islands' morphology is continually changing

Current situation - Because of the seasonal variability, the islands' morphology is continually changing

©felixx | UNESCO-IHE | POLIS University

Current situation - Because of the seasonal variability, the islands' morphology is continually changing

We developed a proposal in which Berat profits from the Osum river during all seasons - during the high waters in winter but also during the dry periods in summer

©felixx | UNESCO-IHE | POLIS University

We developed a proposal in which Berat profits from the Osum river during all seasons - during the high waters in winter but also during the dry periods in summer

We developed a proposal in which Berat profits from the Osum river during all seasons - during the high waters in winter but also during the dry periods in summer

©felixx | UNESCO-IHE | POLIS University

We developed a proposal in which Berat profits from the Osum river during all seasons - during the high waters in winter but also during the dry periods in summer

We developed a proposal in which Berat profits from the Osum river during all seasons - during the high waters in winter but also during the dry periods in summer

©felixx | UNESCO-IHE | POLIS University

We developed a proposal in which Berat profits from the Osum river during all seasons - during the high waters in winter but also during the dry periods in summer

During summer, the modest base flow is directed into a single stream adjecent to the Northern quay, to make the riverfront part of the city's scenery

©felixx | UNESCO-IHE | POLIS University

During summer, the modest base flow is directed into a single stream adjecent to the Northern quay, to make the riverfront part of the city's scenery

During summer, the modest base flow is directed into a single stream adjecent to the Northern quay, to make the riverfront part of the city's scenery

©felixx | UNESCO-IHE | POLIS University

During summer, the modest base flow is directed into a single stream adjecent to the Northern quay, to make the riverfront part of the city's scenery

During summer, the modest base flow is directed into a single stream adjecent to the Northern quay, to make the riverfront part of the city's scenery

©felixx | UNESCO-IHE | POLIS University

During summer, the modest base flow is directed into a single stream adjecent to the Northern quay, to make the riverfront part of the city's scenery

In spring and winter, the discharge levels of the Osum river increase. Higher islands stay protected from the stream, as they are covered by higher curbs

©felixx | UNESCO-IHE | POLIS University

In spring and winter, the discharge levels of the Osum river increase. Higher islands stay protected from the stream, as they are covered by higher curbs

In spring and winter, the discharge levels of the Osum river increase. Higher islands stay protected from the stream, as they are covered by higher curbs

©felixx | UNESCO-IHE | POLIS University

In spring and winter, the discharge levels of the Osum river increase. Higher islands stay protected from the stream, as they are covered by higher curbs

In spring and winter, the discharge levels of the Osum river increase. Higher islands stay protected from the stream, as they are covered by higher curbs

©felixx | UNESCO-IHE | POLIS University

In spring and winter, the discharge levels of the Osum river increase. Higher islands stay protected from the stream, as they are covered by higher curbs

During certain periods in winter and spring, water levels reaches the highest stages. First terrace levels are overflown by water but a small set of islands remains, the winter islands

©felixx | UNESCO-IHE | POLIS University

During certain periods in winter and spring, water levels reaches the highest stages. First terrace levels are overflown by water but a small set of islands remains, the winter islands

During certain periods in winter and spring, water levels reaches the highest stages. First terrace levels are overflown by water but a small set of islands remains, the winter islands

©felixx | UNESCO-IHE | POLIS University

During certain periods in winter and spring, water levels reaches the highest stages. First terrace levels are overflown by water but a small set of islands remains, the winter islands

During certain periods in winter and spring, water levels reaches the highest stages. First terrace levels are overflown by water but a small set of islands remains, the winter islands

©felixx | UNESCO-IHE | POLIS University

During certain periods in winter and spring, water levels reaches the highest stages. First terrace levels are overflown by water but a small set of islands remains, the winter islands

"Building with nature"-approach. Design strategy that is not only resilient to both droughts and floods, but also enhances the usability of the islands by providing a more robust basis

©felixx | UNESCO-IHE | POLIS University

"Building with nature"-approach. Design strategy that is not only resilient to both droughts and floods, but also enhances the usability of the islands by providing a more robust basis

"Building with nature"-approach. Design strategy that is not only resilient to both droughts and floods, but also enhances the usability of the islands by providing a more robust basis

©felixx | UNESCO-IHE | POLIS University

"Building with nature"-approach. Design strategy that is not only resilient to both droughts and floods, but also enhances the usability of the islands by providing a more robust basis

"Building with nature"-approach. Design strategy that is not only resilient to both droughts and floods, but also enhances the usability of the islands by providing a more robust basis

©felixx | UNESCO-IHE | POLIS University

"Building with nature"-approach. Design strategy that is not only resilient to both droughts and floods, but also enhances the usability of the islands by providing a more robust basis

Low water isles. Low curbs into the riverbed directs the modest base flow. The first terrace level that becomes available forms the temporary summer gardens

©felixx | UNESCO-IHE | POLIS University

Low water isles. Low curbs into the riverbed directs the modest base flow. The first terrace level that becomes available forms the temporary summer gardens

Low water isles. Low curbs into the riverbed directs the modest base flow. The first terrace level that becomes available forms the temporary summer gardens

©felixx | UNESCO-IHE | POLIS University

Low water isles. Low curbs into the riverbed directs the modest base flow. The first terrace level that becomes available forms the temporary summer gardens

Low water isles. Low curbs into the riverbed directs the modest base flow. The first terrace level that becomes available forms the temporary summer gardens

©felixx | UNESCO-IHE | POLIS University

Low water isles. Low curbs into the riverbed directs the modest base flow. The first terrace level that becomes available forms the temporary summer gardens

Low to high water isles. The lowest curb level is overflown at certain spots, which means that the "summer version" of the Osum River is widened

©felixx | UNESCO-IHE | POLIS University

Low to high water isles. The lowest curb level is overflown at certain spots, which means that the "summer version" of the Osum River is widened

Low to high water isles. The lowest curb level is overflown at certain spots, which means that the "summer version" of the Osum River is widened

©felixx | UNESCO-IHE | POLIS University

Low to high water isles. The lowest curb level is overflown at certain spots, which means that the "summer version" of the Osum River is widened

Low to high water isles. The lowest curb level is overflown at certain spots, which means that the "summer version" of the Osum River is widened

©felixx | UNESCO-IHE | POLIS University

Low to high water isles. The lowest curb level is overflown at certain spots, which means that the "summer version" of the Osum River is widened

High to peak water isles. Only winter islands remain. Peak discharge levels, occurring with return periods of 10 years or more will overflow all river islands, including winter islands

©felixx | UNESCO-IHE | POLIS University

High to peak water isles. Only winter islands remain. Peak discharge levels, occurring with return periods of 10 years or more will overflow all river islands, including winter islands

High to peak water isles. Only winter islands remain. Peak discharge levels, occurring with return periods of 10 years or more will overflow all river islands, including winter islands

©felixx | UNESCO-IHE | POLIS University

High to peak water isles. Only winter islands remain. Peak discharge levels, occurring with return periods of 10 years or more will overflow all river islands, including winter islands

High to peak water isles. Only winter islands remain. Peak discharge levels, occurring with return periods of 10 years or more will overflow all river islands, including winter islands

©felixx | UNESCO-IHE | POLIS University

High to peak water isles. Only winter islands remain. Peak discharge levels, occurring with return periods of 10 years or more will overflow all river islands, including winter islands

Low water isles. The curb-quays act as a walkway as well as the perimeter of the largest set of islands the first terrace level that becomes available when the sandbanks dry out

©felixx | UNESCO-IHE | POLIS University

Low water isles. The curb-quays act as a walkway as well as the perimeter of the largest set of islands the first terrace level that becomes available when the sandbanks dry out

Low water isles. The curb-quays act as a walkway as well as the perimeter of the largest set of islands the first terrace level that becomes available when the sandbanks dry out

©felixx | UNESCO-IHE | POLIS University

Low water isles. The curb-quays act as a walkway as well as the perimeter of the largest set of islands the first terrace level that becomes available when the sandbanks dry out

Low water isles. The curb-quays act as a walkway as well as the perimeter of the largest set of islands the first terrace level that becomes available when the sandbanks dry out

©felixx | UNESCO-IHE | POLIS University

Low water isles. The curb-quays act as a walkway as well as the perimeter of the largest set of islands the first terrace level that becomes available when the sandbanks dry out

Low to high water isles. The summer gardens are now gradually submerged and transforming into seasonal wetlands

©felixx | UNESCO-IHE | POLIS University

Low to high water isles. The summer gardens are now gradually submerged and transforming into seasonal wetlands

Low to high water isles. The summer gardens are now gradually submerged and transforming into seasonal wetlands

©felixx | UNESCO-IHE | POLIS University

Low to high water isles. The summer gardens are now gradually submerged and transforming into seasonal wetlands

Low to high water isles. The summer gardens are now gradually submerged and transforming into seasonal wetlands

©felixx | UNESCO-IHE | POLIS University

Low to high water isles. The summer gardens are now gradually submerged and transforming into seasonal wetlands

High to peak water isles. Peak discharge levels will overflow all river islands. Therefore it's crucial that the level of the winter islands never transcends the height level of the city

©felixx | UNESCO-IHE | POLIS University

High to peak water isles. Peak discharge levels will overflow all river islands. Therefore it's crucial that the level of the winter islands never transcends the height level of the city

High to peak water isles. Peak discharge levels will overflow all river islands. Therefore it's crucial that the level of the winter islands never transcends the height level of the city

©felixx | UNESCO-IHE | POLIS University

High to peak water isles. Peak discharge levels will overflow all river islands. Therefore it's crucial that the level of the winter islands never transcends the height level of the city

High to peak water isles. Peak discharge levels will overflow all river islands. Therefore it's crucial that the level of the winter islands never transcends the height level of the city

©felixx | UNESCO-IHE | POLIS University

High to peak water isles. Peak discharge levels will overflow all river islands. Therefore it's crucial that the level of the winter islands never transcends the height level of the city

Summer. The riverfront should add to the city's scenery. The curb, used to direct the low water flow close to the city, is widened to create a walking path along the canal

©felixx | UNESCO-IHE | POLIS University

Summer. The riverfront should add to the city's scenery. The curb, used to direct the low water flow close to the city, is widened to create a walking path along the canal

Summer. The riverfront should add to the city's scenery. The curb, used to direct the low water flow close to the city, is widened to create a walking path along the canal

©felixx | UNESCO-IHE | POLIS University

Summer. The riverfront should add to the city's scenery. The curb, used to direct the low water flow close to the city, is widened to create a walking path along the canal

Summer. The riverfront should add to the city's scenery. The curb, used to direct the low water flow close to the city, is widened to create a walking path along the canal

©felixx | UNESCO-IHE | POLIS University

Summer. The riverfront should add to the city's scenery. The curb, used to direct the low water flow close to the city, is widened to create a walking path along the canal

Winter and spring. Flowering zones are overflown by small streams and ponds, the former mown reed paths transform into full grown reed beds

©felixx | UNESCO-IHE | POLIS University

Winter and spring. Flowering zones are overflown by small streams and ponds, the former mown reed paths transform into full grown reed beds

Winter and spring. Flowering zones are overflown by small streams and ponds, the former mown reed paths transform into full grown reed beds

©felixx | UNESCO-IHE | POLIS University

Winter and spring. Flowering zones are overflown by small streams and ponds, the former mown reed paths transform into full grown reed beds

Winter and spring. Flowering zones are overflown by small streams and ponds, the former mown reed paths transform into full grown reed beds

©felixx | UNESCO-IHE | POLIS University

Winter and spring. Flowering zones are overflown by small streams and ponds, the former mown reed paths transform into full grown reed beds

During peaks periods in winter and spring, the islands are no longer accessible for pedestrians, providing a last resort for animals and birds

©felixx | UNESCO-IHE | POLIS University

During peaks periods in winter and spring, the islands are no longer accessible for pedestrians, providing a last resort for animals and birds

During peaks periods in winter and spring, the islands are no longer accessible for pedestrians, providing a last resort for animals and birds

©felixx | UNESCO-IHE | POLIS University

During peaks periods in winter and spring, the islands are no longer accessible for pedestrians, providing a last resort for animals and birds

During peaks periods in winter and spring, the islands are no longer accessible for pedestrians, providing a last resort for animals and birds

©felixx | UNESCO-IHE | POLIS University

During peaks periods in winter and spring, the islands are no longer accessible for pedestrians, providing a last resort for animals and birds

1. Preis 2 / 3 3. Preis

Weitere Artikel