29 



the bow in the direction of the Gruaviyii s island and. 

 after having passed the creek of this name, to keep it in 

 the direction of the Arroyo Grande* (Sheet E). 



The cube to be dredged, so as to make this bar suitable 

 to navigation with rivers t earners, is 56.000 cub meters. 

 It must be indicated by 8 buoys and a line of beacons 

 on the Oriental coast. 



The Western channel might have been selected as the 

 one to be deepened, as its direction is nearly straight and 

 perhaps its maintenance would be easier, but the en he to 

 be dredged would be double as much. Also the slaugh- 

 terhouse of « Guaviyii being an Oriental port, where the 

 river steamers, which serve both coasts stop, ( which latter 

 circumstance ought to be kept in account); the deepening 

 of the Western channel w r ould cause them a loss of time in 

 consequence of the curve they would have to make in order 

 to avoid the great bank in the middle of the river. For 

 this reason the intention is to deepen the actual route as 

 it is thought that by doing so more practical results will 

 be arrived at. 



The general depth of the river, which, as we have seen, stretch of <cha- 

 diminishes after the stretch of the bluffs of San Jose has 

 been passed, does not increase again after the shallow bar 

 of « Guaviyii », on the contrary, the greatest obstacle of 

 the middle Uruguay, the liar of «Chapicuy», is met with 

 at a short distance. 



In the part of this Report, which refers to navigation Barof<cha P .cuv>. 

 ( page 11) the great inconveniences, which this shallow part 

 of the river causes during several months, have been men- 

 tioned and were it not for the extraordinary tides, the in- 

 fluence of which may be felt in the Port of Ooncordia. ii 

 would make navigation of this zone of the river comple- 

 tely impossible. 



This obstacle is formed by a shallow place ( bar) of san- 

 dy stone, which acting like a weir, detains the material 

 which the current brings away from the bluffs of the plateau 

 of Artigas » which excavation is the origine of the forma- 

 tion of the first islands of the middle Uruguay and of the 

 sandbanks which form the bar of « Chapicuy ». 



From the borings, carried out at this bar, results, that the Result of boring. 



