The preparation work at site can be done as soon as the rain is not a problem for the mobilization work. It is envisaged that the existing track road branching off from Road no, 8 to the Nam Theun river bank upstream of dam site will be used for the access. The present road condition allows it to be used only in the dry season, so it needs an improvement to make it suitable for all year round access. From this road an access to dam site can be constructed branching off from the road by following the route as shown in the Conceptual drawings.