639-2025 - Construction of the Tache Booster Pumping Station Aqueduct Drain Chamber

D3.          SCOPE OF WORK

D3.1        The Work to be done under the Contract shall consist of construction of a precast 
concrete drain chamber, modifications to the existing drain piping, electrical work, and general 
site improvements including site grading, replacement of fencing, and a new access gate.

D3.2        The major components of the Work are as follows:
(a)   Site mobilization;
(b)   Supply and installation of shoring system;
(c)    Excavation;
(d)   Construction of cast-in-place concrete chamber base;
(e)   Supply and installation of precast chamber risers and roof slab;
(f)    Removal of existing pipes;
(g)   Supply and installation of new piping, valves, fittings and appurtenances;
(h)   Supply and installation of aluminum roof hatches;
(i)     Supply and installation of electrical cabling, disconnects, and sump pump;
(j)     Supply and installation of high water float and level sensor including cabling and 
connections to SCADA system;
(k)    Supply and installation of insulation and cladding;
(l)     Backfill excavations and site grading;
(m)  Restoration including sodding;
(n)   Supply and installation of culvert at approach;
(o)   Supply and installation of asphalt approach;
(p)   Removal and disposal of sections of existing chain link fence and barbed wire;
(q)   Supply and installation of new chain link fence and gate;
(r)    Supply and installation of bollards.