Garden.Midpoint.Agora

Nedon River’s urban section, historically pivotal to Kalamata’s development, faces hydrological and urban issues. Irregular flow patterns due to its stream-like nature, combined with its narrow cross-sections and the partial encasement of lateral streams, risk capacity overload, as occurred in 1924 and 2016. Local authorities propose interventions, such as redirecting streams via tunnels, while urban encroachment has diminished its role as a unifying element. Meanwhile, environmental restrictions complicate solutions, requiring an adaptive strategy to balance flood control and urban cohesion.

After thorough historical analysis and on-site observation, the trifold redesign proposal operates on two levels -riverside and riverbed- while defining 3 key spatial zones along the axis: the agora, midpoint and garden, as 7 sub-areas serve as focal points for interventions, orienting life toward the stream and reviving its past. Meanwhile, riverbed modifications aim to accommodate peak water volumes without overflow, relying on flow-depth calculations for optimal conditions, with trapezoidal cross-sections and an average slope of 2.5%. Our research tested 4 scenarios based on peak flow rates (600m³/s & 800m³/s, n=0.015 for concrete, n=0.025 for soil), as referenced in the 2021 hydrological study by Daniil & Vlachogiannis. The agora, extending from the public market to the Railway Station, introduces riverside plazas and walkways, reinforcing connections between local and regional commercial centers while subtly integrating water as a defining element. The hardness of its urban condition gradually softens as the proposal transitions southward into the midpoint and ultimately, the garden. The midpoint bridges the rigid urban framework with nature’s fluidity. Floodable embankments on the eastern side allow controlled access to the riverbed when the stream recedes, while widenings on the western side take the form of a protrusion, mitigating flood risks. The protrusion expands part of the riverbed while preserving the green space above, where organic pathways lead into the garden. Here, the canal reunites adjacent districts, no longer acting as a cemented boundary but as a dynamic landscape adapting to seasonal fluctuations. The inactive conduit is reimagined as a flood-responsive vessel of life, promoting a broader strategy for managing urban vacant spaces adaptively.