MU.,Coo,0O - PDF, 101 mb - usaid

PROJECT ANALYSES
A. Technical Analysis
1. Ensinaering
(a) Global Project
ANNEX IV
Exhibit 2
Page I of 40
The proposed project initially investigated by
Harza Engineering Company and subsequently
defined by a World Bank project development team
will increase the water supply, rehabilitate and
improve the irrigation and drainage systems,
improve on-farm development, water management and
agricultural supporting services pursuant to
increased rice and other food crop production in
the Black Bush Frontlands, Block III, and a portion
of the Black Bush Polder.
The water source for irrigation of the Black Bush
Polder and the adjacent and nearby Sugar Estates
is the Canje River supplemented by gravity
diversions from the Berbice River through the
Torani canal, which was constructed during the
period 1945-1958. Water is pumped from the Canje
through 5 pumping stations located along the
Canje River beginning about 12 miles from the
mouth to about 22 miles above the mouth. The
Torani canal (12 miles long) discharges into the
Canje River about 15 miles upstream of the
Skeldon Pump Station which is the furthest upstream.
The Torani Canal was originally plamed to provide
a gravity transfer of water from the Berbice to
the Canje River for supplemental irrigation water
but was unsuccessful until head and tail control
works were installed. The Torani Canal water transfer
procedure requires operation of the head and
tail controls to take advantage of tidal differences
which depend on the river flows and
differences in distance of the two ends of the
canal from the ocean.
Technical feasibility of the global project depends
upon increasing the available water supply in the
Canje River at the pump stat.. s over and above
that now available in the Canje supplemented by