Reservoir Watch
Official fill levels across 23 Taiwanese reservoirs, grouped by region. Data from the Water Resources Agency (WRA), Ministry of Economic Affairs.
Average fill
63.1%
Total volume
1.74 km³
Reservoirs
23
By region
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Taiwan at a glance
National average fill
63.1%
1,735 of 2,751 hm³ stored
Reservoirs
23
Regions
3
Total capacity
2.75 km³
Volume stored
1.74 km³
National fill — multi-year
By region
Sorted by capacityAll reservoirs
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Regions shown as N/A
Eastern Taiwan, Kinmen and Matsu appear as N/A on the map. Taiwan's major storage reservoirs sit on the western plains and foothills; the mountainous east coast (Hualien and Taitung) and the outlying islands hold only small ponds below our 1 hm³ reporting threshold, not the large reservoirs tracked here.
Dataset coverage
Tracked
23
reservoirs
With data
23
reservoirs
Tracked capacity
2,751
hm³
Source: Water Resources Agency (WRA), Ministry of Economic Affairs (Taiwan)
Covers Taiwan's major storage reservoirs published through the WRA open-data platform. Run-of-river weirs (攔河堰) and micro-reservoirs below 1 hm³ (mostly small offshore-island ponds) are excluded.
About reservoirs in Taiwan
As of October 1, 2026, the reservoirs we track across Taiwan that report live levels hold roughly 1,735 hm³ of water — about 63.1% of their combined capacity. Taken together, Taiwan's reservoirs are within their normal operating range.
None of the tracked reservoirs are currently at critically low levels. Agongdian Reservoir is the fullest at 125.7%, while Shihgang Dam is the lowest at 62.2%.
Storage figures for Taiwan come from WRA; the most recent reading is from October 1, 2026. Each reservoir below links to its own page with full history and seasonal context.
Taiwan at a glance
- Reservoirs tracked
- 23
- Average fill
- 63.1%
- Water stored
- 1,735 hm³
- Combined capacity
- 2,751 hm³
- Fullest
- Agongdian Reservoir (125.7%)
- Lowest
- Shihgang Dam (62.2%)
- Last updated
- October 1, 2026