Table 1. Selected hydrographic characteristics of the Upper Paraguay river1


From to Length2 Length3 Length3 Adjacent flooded area5,6
(sinuous) (straight) (low flow) (low flow) (high flow) (others)
(km) (km) (m) (km2) (km2) (km2)
Barra do Bugres C�ceres 280 122 100 30 200 20-150
C�ceres Confluence with Rio Jauru 71 33 150 8 120 -
Confluence with Rio Jauru Curve u/s of Descalvados 35 31 200 10 100 -
Curve u/s of Descalvados Boca do Bracinho 46 28 250 10 90 -
Boca do Bracinho Barra do Bracinho 63 30 120 - - 330
Barra do Bracinho 40 km d/s Pto. Concei��o 83 41 150 - - 14007
40 km d/s of Pto. Concei��o Ref�gio das Tr�s Bocas 161 55 80-200 - - 14007
Ref�gio das Tr�s Bocas Amolar 29 18 300-400 - - 50
Amolar Confl. Riacho da Mandior� 46 30 300-500 280 700 600
Confl. Riacho da Mandior� Porto S�o Francisco 14 8 300-500 - 50 70
Porto S�o Francisco Corumb� 146 71 300-400 76 280 410
Corumb� Confl. with Taquari Velho 41 35 300 15 120 50
Confl. with Taquari Velho Porto Esperan�a 100 63 250-400 30 390 300
Porto Esperan�a Confluence with Rio Negro 126 97 300-450 50 450 -
Confluence with Rio Negro Barra do Nabileque 162 92 300-500 50 400 -
Barra do Nabileque Confluence with Rio Apa 174 128 350-600 90 700 -

1 Source: DNOS (1974) and DNAEE. 2Along the river. 3 In a straight line. 4Channel width.
5 Flooded area adjacent to mainstem river, in low flow, high flow, and other neighboring areas
6 Estimated during drought period 1966-73. 7 Shared.