31 August 2005

 

River dredging going full blast

SOME 20,500 cubic meters of silt have been removed from the Pantal River through the IMS Model 5012 Versi-Dredge over a short period of time.

The City Engineer’s Office (CEO) started dredging Pantal River last July 21 using the US-made dredging machine, which could dredge 66 cu.m of silt per hour.

It works on a two-shift schedule daily from 7 a.m. to 1 p.m. and 7 p.m. to 1 a.m.

“The dredging operation gives dual benefits to the city. While the rivers are deepened, the public schools are also provided filling materials out of the dredged silt,” Rosario said.

The dredged silt is temporarily deposited at an empty fishpond in Pantal.

Seeking to fasttrack dredging of city rivers, the CEO said water master classic dredgers will soon arrive from the Department of Public Works and Highways.

“With the number of rivers we have, we really need all the additional dredging machines that we can get,” Rosario stressed.

She noted that Pantal river alone has to be dredged until December to attain its standard depth as the river is now very shallow. Seven river courses traverse Dagupan City namely Magueragday-Anolid, Bayaoas, Patogcawen, Calmay, Dawel, Pantal and Tanap. The total area of the city’s coastal waters is 639.75 hectares.

Rosario said the water master dredgers from the DPWH could be utilized in dredging rivers and large bodies of water such as the Lingayen Gulf, while the Versi-Dredge is especially made for river dredging.

According to Rosario, one of the water masters would be used to deepen the coast of Lingayen Gulf outside the mouth of Pantal river, while the other water master is planned to initially dredge Calmay river.

Rosario was optimistic the city rivers would be fully-dredged in about two years time with the simultaneous dredging operation. It will take four to five years before the rivers are totally deepened, if a single equipment operates.

The city engineer noted that the level of standard depth of these rivers also still has to be maintained after the dredging operations, in order to be effective as flood control measure.

The modern dredging machine which cost U.S. $636,000 was exclusively manufactured by the Innovative Material Systems (IMS), a division of Liquid Waste Technology (LWT), LLC. It was delivered to the city last July 12. (Sunshine D. Robles)
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