India, Aug. 13 -- LUCKNOW With the final report of the IIT Kharagpur team on the recurring failures of the Lucknow-Kanpur Expressway expected within a week, preliminary observations by the experts have pointed towards possible deficiencies in the road's design and drainage system rather than merely poor construction quality, highly placed sources familiar with the investigation told HT.

A two-member team, which examined the six-lane expressway after repeated instances of road subsidence, cracking and failure, collected around 50 samples from different locations for laboratory and forensic analysis.

Highly placed officials of NHAI said the experts have been particularly examining the movement of water through and around the pavement stru...