Corridor to cost a mine-blowing Rs 233 crore

The estimated cost for two phases of construction comprises of two-lane carriageway with earthwork and structures for four-laning

PADMAVATI PRABHU | SEPTEMBER 29, 2016, 12:00 AM IST

Photo Credits: MINING

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THE GOAN SPECIAL

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All the hurdles with regard to the forest clearances have been taken care of and I have ordered for tendering of phase I and II immediately

- Laxmikant Parsekar

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The State Government’s ambitious plan to construct a dedicated mining corridor for transportation of iron ore from Uguem to Capxem in South Goa is expected to cost a whopping Rs 223 crore.

The State Government has already given a go ahead to Goa State Infrastructure Development Corporation (GSIDC) for tendering both the phases.

Speaking to The Goan, Chief Minister Laxmikant Parsekar informed, “All the hurdles with regard to the forest clearances have been taken care of and I have ordered for tendering of phase I and II immediately.”

The high-level steering committee headed by Chief Secretary RK Srivastava held a meeting on September 22 wherein the officials of GSIDC made a detailed presentation with regard to the proposed two phases – Uguem to Guddemol and Guddemol to Capxem - of the mining bypass.

The Phase I from Uguem to Guddemol is estimated to cost Rs 100.514 crore and will have a railway overbridge (ROB). It stretches to about 8.8 kms, of which over 2 kms is a forest area and has a ROB too. The Phase II of 7.3 kms comprises of a vehicular subway, a flyover and a grade separator.

Interestingly, the estimated cost for both the phases comprise of two-lane carriageway with earthwork and structures for four-laning.

Sources present at the meeting informed that GSIDC, in its detailed presentation made before the steering committee pointed out that though the construction cost of cement concrete (CC) pavement will cost additional 25 per cent compared to the asphalt pavement; over a 15 year horizon after opening to vehicular traffic, the saving in the cost of CC pavement compared to asphalt pavement would be 38 per cent.

“If the asphalt pavement costs Rs 1.92 per km initially, the CC pavement would cost Rs 2.55 per km. So, the additional cost to construct CC pavement for both the phases would be Rs. 10.92 crore. But, post 15 years after the road is opened for traffic, the saving in the cost of CC pavement vis-à-vis asphalt pavement would be 1.59 crore per km”, informed a member of the committee.

Furthermore, eccentric widening was recommended by GSIDC with a proposal to develop two-lane combined carriageway road on one side of the proposed four-lane corridor. This was recommended considering three factors – economical construction, easy flow of traffic over two-lane carriageway and to avoid constraints during future widening.

Sources also informed that GSIDC is likely to float the tender in a month’s time. However, if both the phases cannot be tendered at once, Phase II is likely to be taken up first as most of the traffic congestion could be taken care of.

With the steering committee already granting its approval for the project, the same would be sent for approval of the expenditure finance committee.

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LIFE CYCLE ANALYSIS OF ASPHALT AND CC PAVEMNTS

ASPHALT PAVEMENT

Cost of two-lane road 1.92 cr

Routine maintenance cost per year 0.10 cr

Cost of periodic renewal coat on 7th year 0.42 cr

Cost of strengthening on 12th year 1.09 cr

Cost of periodic renewal coat on 17th year 0.68 cr

Net total cost at the end of 17th year 5.78 cr

CC PAVEMENT

Cost of two-lane road 2.55 cr

Routine maintenance cost after 7th year 0.062 cr

Routine maintenance cost after 12th year 0.119 cr

Cost of replacement of damaged panels

And all joint sealing on 17th year 0.634 cr

Net total cost at the end on 17th year 4.19 cr

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PHASE I PHASE II

Length of road 8.865 km 7.310 km

Forest area 2.17 km 4.09 km

Structures

ROB 1 -

Vehicular subway - 1

Flyover - 1

Grade separator - 1

Estimated cost 100.514 cr 123.010 cr

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