Existing large open drains are to be piped with new precast concrete pipe. Construction of Entrance walls to J17 NEP.

Tender description

Existing large open drain is to be piped with new 1500mm internal precast concrete pipe. Existing second large open drain is to be piped with new 600mm internal precast concrete pipe. New manholes are required, to interconnect into existing pipework at headwalls. Existing smaller drain is to be piped with new 450mm internal precast concrete pipe Existing Head Walls require modifications to allow for the connections of new pipework. Gabion Headwall to be constructed at end of pipe. Entrance walls are to be erected as per drawing at either end of NEP (2 x 2pairs) at specified locations.