Agencies carrying out infrastructural development works in the city may hope to be saved from the embarrassment of hitting an occasional water supply or sewerage line out of the blue while carrying out excavation works, thanks to the project taken up by the Hyderabad Metropolitan Water Supply & Sewerage Board (HMWS&SB) for geo-tagging all its supply and sewerage lines.
After completing the project for the water supply lines, sewerage network and manholes in the core city, the board is now extending the same to water supply lines within the Outer Ring Road, and sewerage lines and manholes in the peripheral areas of GHMC.
The board had taken a decision about six years ago to geo-tag its assets in the city, for their effective management. Since then, a total 4,700 km of water supply lines and 26,511 control valves in the core city, and 6,350 km of water supply lines and 28,358 control valves in the peripheral areas have been geo-tagged, apart from 3,655 km of sewerage network and 2,15,919 manholes in the core city. Also geo-tagged were 1,371 km of transmission lines and 3,777 valves of water supply network.
Tenders have been called anew for geo-tagging of more than 6,000 km of sewerage lines and 1.75 lakh manholes in the peripheral areas, the sewerage management of which has been handed over to the board from GHMC.
In addition, the board will also take digital stock of its water supply lines within the ORR limits by identifying their precise location, officials informed. Around 3,300 km of lines have been laid for supply of water to villages and colonies within the ORR limits as per government directions.
“We are not calling for fresh tenders for ORR works, but instead, will use the savings from the earlier projects in the core city and peripheral areas. The same agency will carry out the work within ORR,” said a senior official of HMWS&SB.
Through geo-tagging the assets, the board aims to improve its field level functionality, by identifying the precise location whenever a problem arises.
“Roads are being re-carpeted every year, with our manholes and control valves getting buried under the BT every time. With the GPS data in our hands, it will be easier to locate them with minimal damage. Besides, when there is a complaint, we will precisely know the reservoir, pipeline, and the valve pertaining to the complaint,” the official said, adding that the effort is already paying off, in terms of identification of hotspots and preventive management.
The process uses Differential GPS, involving establishment of Ground Control Points every one or two square km, from where satellite connection is established for a handheld device in order to extract spatial data of the asset in question. Non-spatial data such as the size and condition of the facility are noted down separately.
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