Effective storage
1,095.4 10k m³
▼ -2.9 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
Storage ratioNormal Storage
89.6%
▼ -0.2% (vs Yesterday)— 0.0% (1 hr)
Effective storage: 1,095.4 10k m³ · Effective capacity: 1,222 10k m³
Real-time Hydraulic Briefing
Synthesized water storage and flow dynamicsCurrent water storage for 明德水庫 is at 89.6% with a water level elevation of 59.9 m. Storage is down 0.2% compared to yesterday at the same time; outflow (2.1 m³/s) exceeds inflow (0.6 m³/s) during regulated release. Primary water supply covers Miaoli City, Touwu, Houlong, and Zaoqiao.
明德水庫 (ID: 10601) is an official On-stream Reservoir situated in the Laotianliao Creek, Houlong River System, operated and managed by Irrigation Agency Miaoli Management Office. In operation since 1970, 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 1,095.4 (10k m³), with a storage ratio of 89.6% and a real-time water level elevation of 59.9 meters. Hydraulic telemetry indicates an inflow of 0.6 m³/s and an outflow of 2.1 m³/s (net flow: -1.46 m³/s), actively conducting scheduled water supply and flood-control releases.
Primary functional purposes include Miaoli Agricultural Irrigation, Miaoli City Municipal Water Supply, Tourism, with key regional supply coverage extending across Miaoli City, Touwu, Houlong, and Zaoqiao.
Primary Supply Area:Miaoli City, Touwu, Houlong, and Zaoqiao
Miaoli Agricultural IrrigationMiaoli City Municipal Water SupplyTourism
Water level
59.9 m
▼ -0.02 m (vs Yesterday)Inflow
0.64 m³/s
▲ +0.12 m³/s (1 hr)Total outflow
2.1 m³/s
▼ -0.03 m³/s (1 hr)Effective capacity
1,222 10k m³
Net Flow Balance
明德水庫 · Real-time hydrological balance and storage dispatch analysis
Inflow (Qin)
0.64 m³/sUpstream catchment runoff inflow rateTotal outflow (Qout)
2.1 m³/sGate release and flood desilting rateNet Flow Balance (ΔQ)
-1.46 m³/sOutflow exceeds inflow during regulated discharge24 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
24h 待命常閉
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
2.1 m³/s
Historical Storage Trends
View historical storage percentage and water volume trends over time.
Reservoir Specifications · Geographic Location
明德水庫 · Engineering profile and geospatial information
Managing AgencyIrrigation Agency Miaoli Management Office
Facility TypeOn-stream Reservoir
River SystemLaotianliao Creek, Houlong River System
Effective capacity1,222 10k m³
Year Completed1970
Geographic Location
24.5889°N, 120.8933°E苗栗縣 · 頭屋鄉
Related Reservoirs in Region
Check real-time conditions and historical trends for other facilities in the same region.
Frequently Asked Questions
明德水庫 · Key insights into reservoir metrics, release mechanisms, and facility operations
FAQ
Total capacity is the total physical volume of the reservoir basin.
In contrast, effective storage refers to the usable volume available for public, agricultural, or power supply above dead storage and sediment levels.