OpenViz

甲仙攔河堰

ID: 31002UnclassifiedRun-of-river Weir

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

甲仙攔河堰

A diversion weir with minimal storage, dedicated to transferring surplus wet-season river flow to Nanhua Reservoir.

Facility OperationRun-of-River Operating
16.29 m³/sWater draw

Run-of-river facility · Primarily raises river level for diversion/water supply without storage ratio monitoring

甲仙攔河堰 real-time hydraulic engineering cross-section甲仙攔河堰 is a run-of-river facility or weir operating with steady throughflow regulation without storage percentage monitoring. Current total outflow is 9.54 cms.

Real-time Hydraulic Briefing

Synthesized water storage and flow dynamics

Current water level for 甲仙攔河堰 is at 246.1 m.; inflow (25.8 m³/s) exceeds outflow (9.5 m³/s), resulting in net storage gain. Primary water supply covers Diverted to Nanhua Reservoir (Tainan) and local agricultural irrigation.

甲仙攔河堰 (ID: 31002) is an official Run-of-river Weir situated in the Qishan River, Gaoping River System, operated and managed by Southern Region Water Resources Branch, WRA. In operation since 1999, this facility serves as a vital strategic pillar in Taiwan's regional water grid and flood mitigation network.

Current real-time water level elevation stands at 246.1 meters. Hydraulic flow metrics record an inflow of 25.8 m³/s against an outflow of 9.5 m³/s (net flow: +16.29 m³/s), indicating active reservoir refilling.

Primary functional purposes include Cross-basin Diversion to Nanhua Reservoir, Downstream Irrigation, with key regional supply coverage extending across Diverted to Nanhua Reservoir (Tainan) and local agricultural irrigation.

Primary Supply Area:Diverted to Nanhua Reservoir (Tainan) and local agricultural irrigation
Cross-basin Diversion to Nanhua ReservoirDownstream Irrigation

Water draw

16.29 m³/s

Water level

246.1 m

▼ -0.05 m (vs Yesterday)

Inflow

25.83 m³/s

▼ -1.14 m³/s (1 hr)

Total outflow

9.54 m³/s

▼ -17.43 m³/s (1 hr)

Catchment rainfall

0 mm

Net Flow Balance

甲仙攔河堰 · Real-time hydrological balance and storage dispatch analysis

Net Inflow (Filling)
Inflow (Qin)
25.83 m³/sUpstream catchment runoff inflow rate
Total outflow (Qout)
9.54 m³/sGate release and flood desilting rate
Net Flow Balance (ΔQ)
+16.29 m³/sInflow exceeds outflow; storage volume is increasing

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.

Active 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
Open
16.29 m³/s
Other outflowEcological baseflow or auxiliary facility release
Open
9.54 m³/s

Hydrological Flow & Water Level History

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

Reservoir Specifications · Geographic Location

甲仙攔河堰 · Engineering profile and geospatial information

Managing AgencySouthern Region Water Resources Branch, WRA
Responsible for facility operation and flood dispatch
Facility TypeRun-of-river Weir
Dam structure and engineering classification
River SystemQishan River, Gaoping River System
Primary catchment river basin and hydrological system
Effective capacityRun-of-river (No storage basin)
Maximum designed water storage capacity of the dam
Year Completed199927 yrs in operation
Long-term water supply security and flood resilience
Geographic Location
23.0806°N, 120.5892°E高雄市 · 甲仙區
Open in Google Maps

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

成功水庫

31301
—
Effective storage— 10k m³

牡丹水庫

31201
91.6%
Effective storage2,386 10k m³

Frequently Asked Questions

甲仙攔河堰 · Key insights into reservoir metrics, release mechanisms, and facility operations

FAQ

A diversion weir with minimal storage, dedicated to transferring surplus wet-season river flow to Nanhua Reservoir.