| Guamá River | |
|---|---|
 Guamá River and Almir Gabriel Bridge | |
  Mouth location in Brazil | |
| Location | |
| Country | Brazil |
| Physical characteristics | |
| Source | |
| • location | Pará |
| Mouth | |
• coordinates | 1°29′01″S48°29′01″W / 1.483715°S 48.483699°W /-1.483715; -48.483699 |
| Length | 82 km (51 mi) |
| Basin size | 87,390 km2 (33,740 sq mi) |
| Discharge | |
| • location | mouth |
| • average | 2,192 m3/s (77,400 cu ft/s) |
| Basin features | |
| River system | Pará |
| Tributaries | |
| • left | Capim,Acará |
TheGuamá River is located in northeastPará state in north-centralBrazil. Its mouth forms the southern border of the state capital,Belém. Its watershed drains an area of 87,389.54 km2 (33,741.29 sq mi). The navigability is feasible in the last 160 km (100 mi) of the river, from the municipality ofSão Miguel do Guamá toGuajará Bay. Among its tributaries, the Acará, Capim and Moju rivers stand out. In the Guamá River, thepororoca phenomenon usually occurs. The main campus of the Federal University of Pará, near Belém, is located on its right bank. About 75% of the water consumed in Belém comes from this river, which receives 11 streams contaminated by the irregular disposal of urban waste, since only 4, 5% of the home network of the Pará capital is connected to the collecting network.
TheGurupí,Capim and Guamá rivers flow into the mouth of the Amazon and are affected by the daily tides, which force water from the Amazon upstream.They are in theTocantins–Araguaia–Maranhão moist forests ecoregion.[1]
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