Bacia Hidrográfica · Brazil
Uruguai River Basin
81% average fill
Reservoirs
8
Volume stored
5,006 hm³
Usable capacity
6,183 hm³
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All reservoirs
8 reservatóriosITÁ
Rio Grande do Sul
Fill level
70.4%
561.9 hm³
/ 797.85 useful cap.
BARRA GRANDE
Santa Catarina
Fill level
91.6%
2,008 hm³
/ 2,192.66 useful cap.
MACHADINHO
Santa Catarina
Fill level
68.7%
725.1 hm³
/ 1,055.81 useful cap.
PASSO FUNDO
Rio Grande do Sul
Fill level
71.4%
1,003 hm³
/ 1,404.61 useful cap.
FOZ CHAPECO
Rio Grande do Sul
Fill level
46.6%
36.8 hm³
/ 78.81 useful cap.
CAMPOS NOVOS
Santa Catarina
Fill level
96.0%
124.4 hm³
/ 129.62 useful cap.
SAO ROQUE
Santa Catarina
Fill level
104.7%
480.6 hm³
/ 458.95 useful cap.
GARIBALDI
Santa Catarina
Fill level
102.1%
65.6 hm³
/ 64.23 useful cap.
About reservoirs in Uruguai River Basin
As of October 26, 2026, the reservoirs we track across Uruguai River Basin that report live levels hold roughly 5,006 hm³ of water — about 81.0% of their combined capacity. Taken together, Uruguai River Basin's reservoirs are high.
None of the tracked reservoirs are currently at critically low levels. SAO ROQUE is the fullest at 104.7%, while FOZ CHAPECO is the lowest at 46.6%.
Over the most recent week on record, 4 reservoirs rose and 3 reservoirs fell across Uruguai River Basin.
Storage figures for Uruguai River Basin come from ONS; the most recent reading is from October 26, 2026. Each reservoir below links to its own page with full history and seasonal context.
Uruguai River Basin at a glance
- Reservoirs tracked
- 8
- Average fill
- 81.0%
- Water stored
- 5,006 hm³
- Combined capacity
- 6,183 hm³
- Fullest
- SAO ROQUE (104.7%)
- Lowest
- FOZ CHAPECO (46.6%)
- Last updated
- October 26, 2026