Friday, July 26, 2013

India - Kerala - Water Authority spends Rs 2.5L, repairs pipeline at Kathrikadavu- proposal for replacing old concrete primo pipes with Ductile Iron pipes still remains on paper

Though there is a proposal for replacing the old concrete primo pipes with DI (ductile iron) pipes, it still remains on paper. There are allegations that authorities won't act unless a small leak becomes large enough for their contractors to take up the work. Contractors find small leak work unprofitable.

KOCHI: Spending around Rs 2.5 lakh Kerala Water Authority (KWA) on Saturday restored water supply to several parts of the city that was disrupted after a pipe burst on Friday near Kathrikadavu.
According to KWA officials, they completed the repair work and restored the water supply by 9am.
While Rs 1.75 lakh had to be given to contractors, the cost of material and compensation for damage to nearby property came to Rs 50,000 and Rs 30,000 respectively. "To hold the pipe, we had to buy two drum collars from Steel Industries Kerala Limited  that cost Rs 25,000 each. The charges of contractors came to about Rs 1. 75 lakh,'' a KWA official said.
For the pipe burst in April, the agency had spent almost the same amount for repair works and compensation. KWA officials attribute the frequent pipe bursts to the use of outdated pipes.
Though there is a proposal for replacing the old concrete primo pipes with DI (ductile iron) pipes, it still remains on paper. "We had brought the issue to the attention of those concerned. But none of them, including local body members, took action," said Ernakulam District Residents Associations' Apex Council president R Lohithakshan.
"Even two weeks ahead of the pipe burst in April, we had informed KWA officials about a leak developing in the pipeline. But they did not pay heed to our call. There are allegations that KWA won't act unless a small leak becomes large enough for their contractors to take up the work. Contractors find small leak work unprofitable,'' he said.
Publication Date: 30 June 2013

India - Railways - Corroded portion of rail track replaced near Chromepet railway station, Chennai

Timely response of Railway staff has averted catastrophic failures. There should be a structured vigilance on rail tracks near coastal zones. The corrosion was probably caused by the discharge of sewage on to the tracks from toilets, they said.

Southern Railway staff replaced a slightly fractured, highly corroded portion of a railway track on the main line near Chromepet railway station on Monday afternoon.

Officials at Southern Railway said an employee noticed a minor fracture on the track on the main line (Egmore to Chengalpattu) a little past 1.30 p.m. A team of staff members and contract labourers sawed off the corroded track close to the railway level crossing (LC No. 26) and replaced it with a new piece of track for a length of 10 metres.

 The new track was subsequently welded. Except for the diversion of Pallavan Express on to a parallel main line, the repair work caused no disruption to rail traffic, officials said.

Staff said they suspected the minor fracture had been caused after the passing of Vaigai Express around 1.30 p.m. or even earlier in the day after the movement of other long-distance or freight trains. The fracture apart, it was the corrosion, for a length of 6 metres that had worried them. The corrosion was probably caused by the discharge of sewage on to the tracks from toilets, they said.


Publication Date: 23 July 2013


Thursday, July 25, 2013

CAPpings - India - Mangalore - Water leakage of 25% triggered Rs 107.16 crore water supply project - Replacement of 30 year old Cast Iron Pipe with HDPE due to corrosion

Leakages plague water supply system in Mangalore


The water wastage due to leakages is estimated at 25%, according to the city corporation engineers, whereas the accepted standard is below 15%. This increased leakage is due to the new pipeline being linked to the old and outdated pipelines.

MANGALORE: The Rs 107.16 crore water supply project, conceived under KUDCEMP and executed by the Karnataka Urban Infrastructure Development and Finance Corporation, has definitely increased water supply to the city, but at the same time it has increased water wastage due to leakage.
This project too has seen delays and cost overruns. It was a Rs 135 crore project which was scaled down to Rs 98 crore removing some components. When it finally got completed, the cost was Rs 107.16 crore.
Water leakage is one of the issues that put brakes on the Mangalore City Corporation's plans of providing uninterrupted water supply. The total estimated cost of the 24X7 project was pegged at Rs 138 crore two years back.
This increased leakage is due to the new KUDCEMP (Karnataka Urban Infrastructure Development and Environment Management Project) pipeline being linked to the old and outdated pipelines, which are serving the city beyond their rated years. The water wastage due to leakages is estimated at 25%, according to the city corporation engineers, whereas the accepted standard is below 15%.
The water pipelines, mainly 18 inch cast iron in Mangalore city, were laid way back in 1958. The life was 30 years, which means that the pipes have been serving the city even after their estimated `life'. Whereas the new lines are of durable HDPE.
Publication Date: 17 Jul 2013