Yongheshan Reservoir
Central · 中港溪支流北坑溝、中港溪支流南庄溪(越域引水) Basin
Capacity
29.57 hm³
Coordinates
24.661°N, 120.923°E
Operator
Water Resources Agency (WRA)
98.7% full
Current fill
98.7%vs 7 days ago
0.0%stable
vs 1 year ago
N/A7-day trend
→stable
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Technical specifications
| Total capacity | 29.57 hm³ |
| Usable capacity | 29.93 hm³ |
| Dam height | 62.5 m |
| Dam type | embankment |
| Year built | 1984 |
| Primary use | Multi-purpose |
| Operator | Water Resources Agency (WRA) |
| River | 中港溪支流北坑溝、中港溪支流南庄溪(越域引水) |
| Autonomous community | Central |
| River basin | 中港溪支流北坑溝、中港溪支流南庄溪(越域引水) Basin |
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 24.661, 120.923 · Open in Google Maps
About Yongheshan Reservoir
As of October 1, 2026, Yongheshan Reservoir is filled to 98.7% of its total capacity, holding roughly 30 hm³ of water out of a maximum 30 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts).
Across the readings we hold for Yongheshan Reservoir — 1 data points between October 1, 2026 and October 1, 2026 — the level has ranged from a low of 98.7% (October 1, 2026) to a high of 98.7% (October 1, 2026).
The dam at Yongheshan Reservoir stands 62.5 m tall and is a embankment dam and was completed in 1984. It is operated by Water Resources Agency (WRA) primarily for multiple purposes. It lies within the 中港溪支流北坑溝、中港溪支流南庄溪(越域引水) Basin basin at 24.661°N, 120.923°E.
Key facts
- Current fill level
- 98.7%
- Water stored
- 30 hm³
- Total capacity
- 30 hm³
- 7-day change
- No change
- Primary use
- Multipurpose
- River
- 中港溪支流北坑溝、中港溪支流南庄溪(越域引水)
- River basin
- 中港溪支流北坑溝、中港溪支流南庄溪(越域引水) Basin
- Dam height
- 62.5 m
- Year completed
- 1984
- Operator
- Water Resources Agency (WRA)
- Coordinates
- 24.661°N, 120.923°E
- Last updated
- October 1, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 1 Oct 2026 | 98.7% | 30 |