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| Coghinas Dam | |
|---|---|
| Name | Coghinas Dam |
| Location | Sardinia, Italy |
| Coordinates | 40°48′N 8°30′E |
| Country | Italy |
| Status | Operational |
| Opening | 1972 |
| Owner | Azienda Regionale Sardegna (example) |
Coghinas Dam Coghinas Dam is a major masonry and earthfill dam on the Coghinas River in northern Sardinia, Italy, forming Lake Coghinas. The project links regional infrastructure and water supply networks across Sardinia, integrating with national transport and energy planning. It plays a central role in irrigation, potable water for nearby municipalities, and limited hydroelectric generation.
The dam sits in the province of Sassari near the municipalities of Valledoria, Castelsardo, and Tempio Pausania, within the Gulf of Asinara catchment area and proximal to the Nurra plain. The site lies in northern Sardinia and is accessible from the SS127 and SS200 state roads connecting to Olbia and Alghero. The topography slopes toward the Tyrrhenian Sea and is influenced by the nearby Monti di Alà and Monte Limbara massifs. The regional climate is Mediterranean and affected by the Mistral and seasonal cyclones that impact reservoir inflows and sediment transport from the Tirso River basin complex.
The dam was designed and built during the late 1960s and early 1970s by Italian civil engineering firms in coordination with regional authorities such as the Provincia di Sassari and the Regione Autonoma della Sardegna. Design elements reflect principles from contemporaneous European projects including techniques used in the Gleno Dam rehabilitation and lessons from the Vaiont disaster studies in engineering circles. Structural choices combined concrete gravity sections and zoned earthfill, referencing standards promoted by organizations like the Associazione Nazionale Costruttori Edili and academic input from the Politecnico di Milano. Construction involved heavy earthmoving equipment procured from companies operating in the Fiat and CNH Industrial supply chains and coordination with national utilities such as ENEL for potential power integration.
Operational management follows protocols similar to those used by water authorities such as the Autorità di Bacino and other Italian river basin districts. Reservoir inflow is governed by precipitation patterns influenced by Mediterranean cyclones, orographic runoff from the Monte Albo and Marghine ranges, and seasonal transfers related to agricultural demand in the Campidano di Sassari. Operational decisions are made in coordination with municipal water services of Sassari, Alghero, and Nuoro, and are informed by hydrologic models developed in academic centers including the Università degli Studi di Cagliari and the Università degli Studi di Sassari. Monitoring employs telemetry systems akin to those used by ANBI and remote sensing platforms provided by European agencies such as Copernicus.
Lake Coghinas serves irrigation networks that support the Rice and horticulture sectors in northern Sardinia and supplies drinking water to urban centers like Sassari and tourist towns such as Castelsardo and Badesi. Water allocation follows regional plans framed by the Piano di Tutela delle Acque and involves stakeholder bodies such as municipal consortiums and agricultural unions like the Coldiretti and Confagricoltura. Management balances demands from the bottled water industry near Tempio Pausania and seasonal tourism peaks tied to ferry connections with Porto Torres and Olbia Costa Smeralda Airport. Reservoir operations must adhere to legal instruments comparable to Italian water framework directives and EU policies administered by institutions like the European Commission.
The dam altered riparian habitats and modified the ecology of the Coghinas valley, affecting species protected under EU directives such as the Habitat Directive and the Birds Directive. The impoundment has influenced populations of endemic Sardinian fauna found in the Giara di Gesturi and reptile communities similar to those cataloged in research from the Museo Nazionale delle Scienze Naturali di Milazzo. Aquatic ecology changes include shifts in fish assemblages comparable in study to Mediterranean reservoir impacts documented by the Istituto Superiore per la Protezione e la Ricerca Ambientale (ISPRA). Conservation responses involved collaborations with regional parks like the Parco Naturale Regionale di Porto Conte and NGOs such as WWF Italy and LIPU to mitigate habitat loss and manage invasive species.
Construction and operation stimulated the local economy through employment and infrastructure investment comparable to impacts observed in other Italian dam projects coordinated by bodies like the Ministero delle Infrastrutture e dei Trasporti and the Ministero delle Politiche Agricole. The reservoir supported agricultural modernization for cooperative groups such as Consorzio di Bonifica entities and bolstered tourism enterprises in coastal towns including Santa Teresa Gallura and Stintino. Conversely, communities experienced displacement and cultural landscape changes paralleling cases in Sardinian development history studied by researchers at the Università di Cagliari and the Università di Sassari. Regional authorities, including the Regione Sardegna, implemented compensation and land-use plans to address socio-economic shifts.
Lake Coghinas is a focal point for outdoor recreation and draws visitors interested in boating, angling, and birdwatching, similar to attractions promoted by regional tourism boards like Visit Sardinia and the Provincia di Sassari tourist offices. Nearby historical and cultural sites include the medieval town of Castelsardo, the archaeological complex at Nuraghe Santu Antine, and maritime ports such as Porto Torres, which integrate reservoir visits into broader itineraries. Local businesses, including hotels in Valledoria and guides organized through associations such as Confcommercio and Confesercenti, offer services that connect lake-based activities with coastal excursions to Asinara National Park and ferry links to Corsica.
Category:Dams in Italy Category:Reservoirs in Sardinia