OpenViz

士林攔河堰

ID: 20405CentralRun-of-river Weir

Real-time conditions and historical storage trends

Observed at: —Daily operation date: 09/16/2026 00:00

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

💡 Operational Notes & FAQ

士林攔河堰

💡 Diversion Hub: Channels wet-season Da’an River flows into Liyutan Reservoir while managing seasonal sediment flushes.

Facility OperationRegular Monitoring
—N/A

Effective capacity: 68.2 10k m³ (Desilting & flood regulation) · Run-of-river facility · Primarily raises river level for diversion/water supply without storage ratio monitoring

士林攔河堰 real-time hydraulic engineering cross-section士林攔河堰 is a run-of-river facility or weir operating with steady throughflow regulation without storage percentage monitoring.

Real-time Hydraulic Briefing

Synthesized water storage and flow dynamics

士林攔河堰 (Run-of-river Weir) is a major hydraulic facility managed under the Water Resources Agency. Primary water supply covers Zhuolan Hydropower Station and Greater Taichung / Miaoli water supply.

士林攔河堰 (ID: 20405) is an official Run-of-river Weir situated in the Da’an River System Mainstream, operated and managed by Taiwan Power Company. In operation since 2002, this facility serves as a vital strategic pillar in Taiwan's regional water grid and flood mitigation network.

Primary functional purposes include Zhuolan Hydropower Generation, Cross-basin Diversion to Liyutan Reservoir, with key regional supply coverage extending across Zhuolan Hydropower Station and Greater Taichung / Miaoli water supply.

Primary Supply Area:Zhuolan Hydropower Station and Greater Taichung / Miaoli water supply
Zhuolan Hydropower GenerationCross-basin Diversion to Liyutan Reservoir

Water draw

N/A

Water level

N/A

Inflow

N/A

Total outflow

N/A

Catchment rainfall

N/A

Net Flow Balance

士林攔河堰 · Real-time hydrological balance and storage dispatch analysis

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

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

Hydrological Flow & Water Level History

Historical telemetry trends for inflow, outflow discharge, and live water level elevation.

Reservoir Specifications · Geographic Location

士林攔河堰 · Engineering profile and geospatial information

Managing AgencyTaiwan Power Company
Responsible for facility operation and flood dispatch
Facility TypeRun-of-river Weir
Dam structure and engineering classification
River SystemDa’an River System Mainstream
Primary catchment river basin and hydrological system
Effective capacity68.2 10k m³
Maximum designed water storage capacity of the dam
Year Completed200224 yrs in operation
Long-term water supply security and flood resilience
Geographic Location
24.3469°N, 120.9389°E苗栗縣 · 泰安鄉
Open in Google Maps

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

德基水庫

20201
97.8%
Effective storage17,762.9 10k m³

日月潭水庫

20502
95.9%
Effective storage12,319.1 10k m³

明湖下池水庫

20508
52.9%
Effective storage442.6 10k m³

武界壩

20507
—
Effective storage— 10k m³

湖山水庫

20509
100.2%
Effective storage5,049.3 10k m³

石岡壩

20202
58.5%
Effective storage70.3 10k m³

Frequently Asked Questions

士林攔河堰 · Key insights into reservoir metrics, release mechanisms, and facility operations

FAQ

💡 Diversion Hub: Channels wet-season Da’an River flows into Liyutan Reservoir while managing seasonal sediment flushes.