Effective storage
28,664.6 10k m³
▲ +49.8 10k m³ (vs Yesterday)Real-time conditions and historical storage trends
Observed at: 09/18/2026 12:00Daily operation date: 09/17/2026 00:00
Source: Water Resources Agency Reservoir Conditions and Daily Reservoir Operations datasets
💡 Operational Notes & FAQ
翡翠水庫
Features substantial deep-valley storage and flood control capacity, coordinated with downstream Zhitam and Qingtam weirs.
Storage ratioNormal Storage
77.5%
▲ +0.1% (vs Yesterday)▲ +0% (1 hr)
Effective storage: 28,664.6 10k m³ · Effective capacity: 36,997.6 10k m³
Real-time Hydraulic Briefing
Synthesized water storage and flow dynamicsCurrent water storage for 翡翠水庫 is at 77.5% with a water level elevation of 160.49 m. Storage is up 0.1% compared to yesterday at the same time; inflow (11.5 m³/s) exceeds outflow (0 m³/s), resulting in net storage gain. Primary water supply covers Taipei City and parts of New Taipei City (approx. 6 million residents).
翡翠水庫 (ID: 10205) is an official On-stream Reservoir situated in the Beishi Creek, Tamsui River System, operated and managed by Taipei Feitsui Reservoir Administration. In operation since 1987, this facility serves as a vital strategic pillar in Taiwan's regional water grid and flood mitigation network.
According to the latest observation, its effective water storage is approximately 28,664.6 (10k m³), with a storage ratio of 77.5% and a real-time water level elevation of 160.49 meters. Hydraulic flow metrics record an inflow of 11.5 m³/s against an outflow of 0 m³/s (net flow: +11.52 m³/s), indicating active reservoir refilling. Catchment area recorded 0.1 mm of rainfall today.
Primary functional purposes include Greater Taipei Public Water Supply, Hydroelectric Power, Flood Retention, with key regional supply coverage extending across Taipei City and parts of New Taipei City (approx. 6 million residents).
Primary Supply Area:Taipei City and parts of New Taipei City (approx. 6 million residents)
Greater Taipei Public Water SupplyHydroelectric PowerFlood Retention
Water level
160.49 m
▲ +0.06 m (vs Yesterday)Inflow
11.52 m³/s
▲ +0.01 m³/s (1 hr)Total outflow
0 m³/s
— 0.0 m³/s (1 hr)Effective capacity
36,997.6 10k m³
Net Flow Balance
翡翠水庫 · Real-time hydrological balance and storage dispatch analysis
Inflow (Qin)
11.52 m³/sUpstream catchment runoff inflow rateTotal outflow (Qout)
0 m³/sGate release and flood desilting rateNet Flow Balance (ΔQ)
+11.52 m³/sInflow exceeds outflow; storage volume is increasing24 小時水文吞吐平衡走勢
雙向對稱流量觀測（上方為上游入流，下方為大壩放流，穿梭折線為淨出入差額）Discharge Gates & Facilities
Real-time telemetry for spillways, drainage tunnels, desilting tunnels, and power outlets.
Spillway outflowMain spillway gate release or crest free overflow
24h 待命常閉
Power outletHydroelectric turbine power generation discharge
0 m³/s
Desilting tunnelBottom desilting and sediment bypass tunnel
24h 待命常閉
Drainage tunnelDedicated flood diversion tunnel release
24h 待命常閉
Water drawMunicipal water, industrial, or irrigation draw
24h 待命常閉
Other outflowEcological baseflow or auxiliary facility release
24h 待命常閉
Historical Storage Trends
View historical storage percentage and water volume trends over time.
Reservoir Specifications · Geographic Location
翡翠水庫 · Engineering profile and geospatial information
Managing AgencyTaipei Feitsui Reservoir Administration
Facility TypeOn-stream Reservoir
River SystemBeishi Creek, Tamsui River System
Effective capacity36,997.6 10k m³
Year Completed1987
Geographic Location
24.9083°N, 121.5794°E新北市 · 石碇區
Related Reservoirs in Region
Check real-time conditions and historical trends for other facilities in the same region.
Frequently Asked Questions
翡翠水庫 · Key insights into reservoir metrics, release mechanisms, and facility operations
FAQ
Features substantial deep-valley storage and flood control capacity, coordinated with downstream Zhitam and Qingtam weirs.