Road connectivity still under process

Road connectivity still under process
(L) The bridge under construction near Purana Bazaar. (C) Piers being built for the Nagarjan Bridge. (R) First layer of concrete on the 4-lane road in Purana Bazaar. (NP)
Staff Reporters DIMAPUR, APR 14 (NPN) | Publish Date: 4/14/2019 12:07:35 PM IST

Traffic congestion has become a big problem in Dimapur and could continue for perhaps another year as the ongoing construction of the four-lane along NH 29 has not been as fast-paced as one would expect while time taken for construction of the new bridges across Dhansiri river between Purana Bazaar and Walford Colony and at Full Nagarjan near Electrical Colony, will continue to restrict movement of vehicular traffic across the only bridge at present near Burma Camp.

The ongoing construction of NH-29 between Dimapur-Chumoukedima to Kohima, has been consistent but somewhat slow. According to some officials who were contacted, at the present pace, it could take another year to complete the works.

The construction work for the four-lane highway along Purana Bazaar-Chumoukedima, stretches a total length of around 12.9 kilometers. Work had already begun and some marked improvement can be seen in the Purana Bazaar area stretch where nearly 200 meters of half of the four-lane is being paved with concrete.

As per the norms, the four-lane express highway is to be paved with concrete mixture and not asphalt as in the earlier days. It was disclosed that the entire stretch from Purana Bazaar to Chumoukedima will be completed by December 2019. 

The Purana Bazaar stretch is being laid with Dry Lean Concrete (DLC) composed of stone chips, cement and coarse sand. DLC has a large ratio of aggregate to cement compared to normal concrete. The thickness of DLC is 150 mm or 5.9 inch which is normally used as a base or sub-base of a rigid pavement. Another layer called Pavement Quality Concrete (PQC) has to be laid as the final layer before it is ready for use.

An executive from TK Consortium Pvt Ltd, involved with the construction work, told this Reporter that the thickness of PQC on the stretch from Purana Bazaar to Chumoukedima will be 280 mm or 11.02 inches. 

Also, keeping in view the impending monsoon and damage caused to roads due to accumulation of water on the surface, drains have been dug out alongside both sides of the road with slabs to act as pavements. It was also observed that in the drainage construction, there are large holes on the side of drain for seepage of rainwater into the drains from the road.

On diversion of rainwater from the drainage, the official explained that the main point for diversion of rainwater from the drains alongside the road, will be culverts constructed beneath the road. The water will flow to the culvert to the nearest drainage system constructed in villages and colonies.

Bridges: Presently construction of two new bridges –one between Purana Bazaar and Walford Colony (which used to be connected by the dismantled old bridge constructed during World War-II) and one at Full Nagarjan near Electrical Colony (where another war time era concrete bridge is still being used for light vehicles after cracks appeared on decks)- are yet to be completed.

Works on the new bridge between Walford-Purana Bazaar is going on in full swing, even as there has been inordinate delays due to various reasons. Among them was the allegation of harassments faced by labourers at the hands of miscreants. The length of the new bridge over which construction has been going on is around 96 metres.

At the construction site, this Reporter was told that it would take another two years to complete the bridge.

Due to constant harassment and at times assaults by miscreants, the labourers had to be shifted to Urbaan Hat ground, after which such incidents have ceased since the past three months.

Labourers were earlier housed near the road and which exposed them to harassments. 

At the Full Nagarjan area where the alternative new bridge is under construction, the columns of the old pre-war era bridge still being used only for light vehicles is dangerously under threat of erosion.

The impending monsoon rains will add to a major threat on the stability of the bridge due to erosion on the columns as well as the threat of widening of the cracks on the deck.

Though the construction of the new bridge alongside the old one is going on in good pace, it still remains unclear if the work can be completed by end of 2019 as expected. 

Once if both the new bridges under construction are complete, traffic congestion to Dimapur will greatly ease.

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