Volume-II of IV - GAIL

MECON LIMITED
REGD. OFF : RANCHI (BIHAR)
PROCESS & PIPING
DESIGN SECTION
NEW DELHI
\\Akjha\work contrac\standard TS for Pipe Line WC (Vol-II) MASTER FOLDER\04A major water crossing\Major Water Crossing -Final 04.doc
STANDARD SPECIFICATION
TITLE MAJOR WATER CROSSINGS SPECIFICATION NO. PAGE 5 OF 14
MEC/S/05/62/04 REVISION 0
2.3 CONTRACTOR shall comply with all the conditions and requirements issued by
authorities having jurisdiction in the area where the work is to be performed.
CONTRACTOR shall, at his own responsibility, obtain necessary permits from
the authorities having jurisdiction, for performing his work.
If no public roads exist, CONTRACTOR shall arrange on his own for access to
his work area at no extra cost to COMPANY.
2.4 Pre-construction Surveys
Prior to start of any work, CONTRACTOR shall carry out a survey of the major
water crossings and acquaint himself with site conditions and to collect any data
regarding the water velocity and the tidal variations in the flow pattern and shall
verify the suitability of his equipment and the methods of construction.
3.0 TRENCHING
3.1 Dredging/ Excavating
3.1.1 CONTRACTOR shall dredge or excavate the trench for the water crossing in
conformity with the approved drawings. Dredging of the trench shall be executed
as accurately as possible.
3.1.2 The trench shall be excavated to such depth as required to provide the minimum
cover and the pipeline configuration as specified. The pipeline profile of the
crossings shall be followed as accurately as possible. Before laying, the trench
shall be cleaned and levelled. The trench shall be subject to inspection by
COMPANY prior to installation of the pipe.
3.1.3 Navigational traffic shall not be obstructed, unless permission has been given
thereto. CONTRACTOR shall issue all necessary publications according to the
local regulations. Instructions given by authorities shall be followed accurately
and immediately, so that there in no hindrance to traffic. For stoppage of
navigational traffic public notification, PA system, signal/ sign etc. shall be
provided.
CONTRACTOR cannot request a compensation if his work is hampered or
delayed due to weather conditions, any obstacles/ or by any traffic on the spot,
where work is executed.
3.1.4 CONTRACTOR is fully responsible for the execution of the blasting (whenever
permitted) the dredging and excavation work, hopping of the soil, transportation,
dumping on land or in water, all to be executed in agreement with authorities,
land owners and COMPANY.