Türkiye’s fourth-largest city swings from empty reservoirs to overflow risk

Reservoirs supplying Bursa’s drinking water have reached full capacity following months of intense rainfall and snowmelt. This prompted authorities to initiate controlled water discharges amid close monitoring of potential downstream flood risks.

The Doganci and Nilufer dams, which fell to critically low levels approximately seven months ago during a severe drought, have now recovered to 100% capacity. The sharp reversal follows sustained precipitation across the region, significant snow accumulation and subsequent melting on Uludag, one of the primary water catchment areas feeding the city’s reservoirs.

More to Read

Türkiye’s 4th biggest city Bursa runs out of water as reservoirs dry up

Lifestyle 1 min read

Uludag snow cover halves in a decade as Bursa faces deepening water stress

Lifestyle 1 min read

During the drought period, water levels dropped to historic lows, exposing large sections of reservoir beds and forcing water restrictions across the city. The situation raised widespread concern over long-term water security in Bursa.

However, weather conditions over the past 220 days have significantly altered the hydrological balance, rapidly replenishing the city’s main water sources.

Bursa’s dams had dried up 220 days ago. Bursa, Türkiye. (IHA Photo)

Controlled discharges initiated

The Bursa Metropolitan Municipality and the State Hydraulic Works (DSI) have confirmed that controlled water releases are currently being carried out at multiple reservoirs, including Doganci, Nilufer, Cinarcik, Golbasi, Bogazkoy, and Buyukorhan (Cuma) dams.

Officials stated that the operations are necessary due to high inflow rates entering reservoir systems, with water levels rising to full capacity in a short period. The controlled releases are intended to maintain structural safety, prevent overflow conditions, and manage excess water in a regulated manner.

Reservoirs reached 100% capacity and the gates were opened. Bursa, Türkiye, May 26, 2026. (IHA Photo)

Authorities have warned that increased discharge volumes may lead to sudden rises in water levels in downstream riverbeds and streams. While the releases are being conducted under controlled conditions, temporary surges in flow are expected in affected areas.

Residents have been advised to stay away from riverbanks, stream channels, dam outlet zones, and low-lying agricultural land.

Local administrations have also been urged to monitor transportation routes and vulnerable infrastructure in areas at risk of water accumulation.

May 28, 2026 03:07 AM GMT+03:00