पहाडोके बीच से होके गुजरती है कोकण रेल | Making Of Konkan Railway | World Documentary

The first phase of the Konkan Railway was the 62-kilometre (39 mi) section from Aptaa to Roha. It was cleared by the Planning Commission, and the project was included in the 1978-79 budget at an estimated cost of ₹11.19 billion. The length of the railway from Apta to Mangalore was estimated at 890 kilometres (550 mi), and its cost was estimated at ₹2.39 billion in 1976.The engineering and traffic survey for the West Coast Railway Line from Apta to Mangalore was conducted from 1970 to 1972. The final survey for the Apta-Roha-Dasgaon section was made in 1974–75.

he project involved over 2,000 bridges (of which the Panvalnadi bridge is the highest viaduct in India)and 92 tunnels and was the largest railway project of the century in Asia.A major challenge was land acquisition from about 43,000 landowners. When Konkan Railway Corporation (KRCL) began asking people to surrender property which had belonged to them for generations, many (convinced of the project's importance) did so voluntarily. This enabled the process to be completed in one year.

Terrain and the elements were challenging; flash floods, landslides and tunnel collapses affected work at many places on the project. Thickly-forested construction sites were often visited by wild animals.

The route crosses three states (Maharashtra, Goa and Karnataka), each of which agreed to provide financing. The authorised share capital was increased in 1996-1997 from ₹6 billion to ₹8 billion, with the government of India taking a 51-percent share; the rest went to Maharashtra (22 percent), Karnataka (15 percent), Kerala (6 percent) and Goa (6 percent).

Contracts for the project were given to construction firms which included Larsen & Toubro had been given major part of project, Gammon India and Afcons. To speed up construction, piers for major bridges were cast on riverbanks itself and launched with pontoon-mounted cranes.This was India's first use of incremental launch bridge-building. The greatest challenge was presented by the nine tunnels bored through soft soil, which required a slow, manual process. Excavation was difficult due to saturated clay and high water table. Tunnels collapsed immediately several times, requiring the work to be redone.Nineteen lives and four years were lost in the construction of the soft-soil tunnels alone and a total of seventy-four people died during the railway's construction.

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