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
56.4%
Total volume
1.55 km³
Reservoirs
23
Critical
1
Low level
1
By region
Click a region to exploreLoading map…
Taiwan at a glance
National average fill
56.4%
1,551 of 2,751 hm³ stored
Reservoirs
23
Regions
3
Total capacity
2.75 km³
Volume stored
1.55 km³
Critical
1
Low level
1
National fill — multi-year
By region
Sorted by capacityAll reservoirs
Click a pin to exploreLoading map…
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 July 3, 2026, the reservoirs we track across Taiwan that report live levels hold roughly 1,551 hm³ of water — about 56.4% of their combined capacity. Taken together, Taiwan's reservoirs are within their normal operating range.
Across the region, 1 reservoir is at critically low levels and 1 is low. Baoshan Reservoir is the fullest at 100.6%, while Agongdian Reservoir is the lowest at 14.1%.
Over the most recent week on record, 14 reservoirs rose and 3 reservoirs fell across Taiwan.
Storage figures for Taiwan come from WRA; the most recent reading is from July 3, 2026. Each reservoir below links to its own page with full history and seasonal context.
Taiwan at a glance
- Reservoirs tracked
- 23
- Average fill
- 56.4%
- Water stored
- 1,551 hm³
- Combined capacity
- 2,751 hm³
- At critically low levels
- 1
- Fullest
- Baoshan Reservoir (100.6%)
- Lowest
- Agongdian Reservoir (14.1%)
- Last updated
- July 3, 2026
Frequently asked questions
How full are reservoirs in Taiwan right now?
As of July 3, 2026, the reservoirs tracked in Taiwan that report live levels are 56.4% full overall, holding about 1,551 hm³ of water.
How many reservoirs are there in Taiwan?
reservoirs.earth tracks 23 reservoirs in Taiwan, with a combined storage capacity of 2,751 hm³.
Which reservoir in Taiwan is the fullest?
Baoshan Reservoir is currently the fullest reservoir in Taiwan, at 100.6% of capacity.
Which reservoir in Taiwan is the lowest?
Agongdian Reservoir is currently the lowest in Taiwan, at 14.1% of capacity.
Where does the reservoir data for Taiwan come from?
All storage figures for Taiwan come from WRA, an official source, last updated July 3, 2026.