OpenViz

珠螺水壩

ID: 50303Offshore islandsOn-stream Reservoir

Real-time conditions and historical storage trends

Observed at: 09/18/2026 08:00Daily operation date: 09/17/2026 00:00

Source: Water Resources Agency Reservoir Conditions and Daily Reservoir Operations datasets

Storage ratioNormal Storage
1%
— 0.0% (vs Yesterday)

Effective storage: 0.1 10k m³ · Effective capacity: 12.5 10k m³

珠螺水壩 real-time hydraulic engineering cross-section珠螺水壩 real-time storage ratio is 1.0%.

Real-time Hydraulic Briefing

Synthesized water storage and flow dynamics

Current water storage for 珠螺水壩 is at 1% with a water level elevation of 3.87 m. Primary water supply covers Zhuluo and Fu’ao Port in Nangan, Matsu.

珠螺水壩 (ID: 50303) is an official On-stream Reservoir situated in the Zhuluo Creek, Nangan, operated and managed by Lienchiang County Water Plant. In operation since 1982, 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 0.1 (10k m³), with a storage ratio of 1% and a real-time water level elevation of 3.87 meters.

Primary functional purposes include Nangan Municipal Raw Water Buffer, with key regional supply coverage extending across Zhuluo and Fu’ao Port in Nangan, Matsu.

Primary Supply Area:Zhuluo and Fu’ao Port in Nangan, Matsu
Nangan Municipal Raw Water Buffer

Effective storage

0.1 10k m³

— 0.0 10k m³ (vs Yesterday)

Water level

3.87 m

— 0.0 m (vs Yesterday)

Inflow

N/A

Total outflow

0 m³/s

— 0.0 m³/s (1 hr)

Effective capacity

12.5 10k m³

Net Flow Balance

珠螺水壩 · Real-time hydrological balance and storage dispatch analysis

Inflow (Qin)
N/AUpstream catchment runoff inflow rate
Total outflow (Qout)
0 m³/sGate release and flood desilting rate
Net Flow Balance (ΔQ)
N/AOfficial real-time inflow/outflow telemetry unavailable

24 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.

All discharge gates closed (No flood release)
Spillway outflowMain spillway gate release or crest free overflow
N/A
24h 待命常閉
N/A
Power outletHydroelectric turbine power generation discharge
N/A
24h 待命常閉
N/A
Desilting tunnelBottom desilting and sediment bypass tunnel
N/A
24h 待命常閉
N/A
Drainage tunnelDedicated flood diversion tunnel release
N/A
24h 待命常閉
N/A
Water drawMunicipal water, industrial, or irrigation draw
N/A
24h 待命常閉
N/A
Other outflowEcological baseflow or auxiliary facility release
N/A
24h 待命常閉
N/A

Historical Storage Trends

View historical storage percentage and water volume trends over time.

Reservoir Specifications · Geographic Location

珠螺水壩 · Engineering profile and geospatial information

Managing AgencyLienchiang County Water Plant
Responsible for facility operation and flood dispatch
Facility TypeOn-stream Reservoir
Dam structure and engineering classification
River SystemZhuluo Creek, Nangan
Primary catchment river basin and hydrological system
Effective capacity12.5 10k m³
Maximum designed water storage capacity of the dam
Year Completed198244 yrs in operation
Long-term water supply security and flood resilience
Geographic Location
26.1608°N, 119.9256°E連江縣 · 南竿鄉
Open in Google Maps

Check real-time conditions and historical trends for other facilities in the same region.

七美水庫

50106
—
Effective storage— 10k m³

儲水沃上壩

50304
61.6%
Effective storage1.4 10k m³

儲水沃水庫

50305
66.7%
Effective storage2.8 10k m³

勝利水庫

50301
15.8%
Effective storage2.9 10k m³

后沃水庫

50310
92.6%
Effective storage29.1 10k m³

坂里水庫

50308
86.6%
Effective storage12.2 10k m³

Frequently Asked Questions

珠螺水壩 · 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.