Tender For supply of design supply and installation of precast culvert and trapezoidal lined drain : : - precast culvert for km 8 to 11.5 , precast culvert for km 11.5 to 15.00 , precast trapezoindal shape line drain for km 8 to 10.5 , precast trapezoindal shape line drain for km 10.5 to 12.5 , precast trapezoindal shape line drain for km 12.5 to 15.00