LAYING AND CONSTRUCTION OF STEEL GAS PIPELINE AND TERMINALS ALONG WITH ASSOCIATED FACILITIES FOR DULIAJAN FEEDER LINE (DFL) PROJECT OF M/S INDRADHANUSH GAS GRID LIMITED (IGGL)

SECTION-A: PIPELINE LAYING / INSTALLATION

Laying/ installation of coated line pipe, associated fittings and accessories, etc. as per specifications, drawings, other provisions of Contract and instructions of Engineer-in-Charge of the sizes mentioned herein, including but not limited to carrying out the following :

"Receiving and taking-over", handling, loading (except for cases, where loading of bare/coated line pipe is arranged by owner), transportation and unloading of Owner supplied externally corrosion coated and bare line pipes and other Owner supplied materials from Owner designated place(s) of issue/ dump site(s) to Contractor's own stock-yard(s)/ workshop(s)/ work-site(s) including stringing on the pipeline Right-of-Use (ROU)/ Right of way (ROW); Arrangement of all additional land required for Contractor's storage, fabrication, access for construction (other than Owner provided ROU/ROW); supply of all materials (except Owner supplied materials), consumables, equipment, labour, etc. and other incidental works;carrying out all temporary, ancillary, auxiliary works required to make the pipeline ready for pre-commissioning as per drawings, specifications, scope of work indicated in SCC and other provisions of Contract document and instructions of Engineer-in-charge, including but not limited to carrying out the following works :

Staking and installation of temporary construction markers, clearing, grubbing & grading (as required) of Right of Use/ Right of Way;

Counting the number and type of trees cut in presence of DFO/concerned authorities and keeping record thereof; shifting of all obstruction within the ROU / pipeline route alignment viz. electrical line / pole, telephone line (poles), foreign pipeline; coordination with concerned authorities.

Trenching to all depths and to a width to accommodate the pipeline and/or optical fiber cable/cable duct/ conduit during lowering & backfilling as specified in scope document and as per the relevant standards, specifications, etc. by excavation in all types of soils (including soft/ hard rock), including chiseling or otherwise cutting etc.; providing depth of padding in trench bed & above and around the pipeline, HDPE duct and OFC as required with sand / graded earth approved by Engineer-in Charge;

Trenching in rocky terrain by use of rock hammer/ Rock breaking tool or any other suitable and approved method, including chemical cracking and controlled blasting (if required) with due approval of EIC.

Survey of the detours, if required at the time of construction including marking the same in topographical sheet, preparation of AFC drawings showing survey detail and submitting same to Owner to review.

Carrying out repairs of pipe defects/ replacement in case of irreparable defects and repairs of defects of pipe coating not attributable to Owner including defects/ damages occurring during transportation/ handling after taking over from Owner by Contractor including management of their own dump site, if required.

Thorough internal cleaning of all pipes by suitable methods to remove debris, shots, grits etc. to the satisfaction of Engineer-in- Charge;