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Hope Canal
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Hope Canal
The East Demerara Water Conservancy-Northern Relief Channel, better known locally as the Hope Canal, is one of Guyana's largest drainage projects. Construction was from 2011 to November 9, 2013, at a cost of around GYD$3.6 billion.
Hope Canal was designed in response to the 2005 flooding, when a breach in the embankment resulted in floods to almost the entire East Coast of Demerara causing significant damage to agricultural and residential areas. It serves as a medium to release excess water from the EDWC directly to the Atlantic Ocean via an 8-door sluice, during periods of extended rainfall in order to prevent overtopping of conservancy embankment.
The project was criticized for costing well over estimates and two years of delays.
There are four major components of the Hope Canal Project:
The channel has a length of 10.3 km and entirely straight with a bed width of 30m and a top width of 40m. The embankments are at least 8m higher than the surrounding land areas and the width across the top of the embankments is 5m. Approximately 660,520 cubic metres of soil was excavated, then used for the construction of the channel embankments and supplemented with geotextile fabric for added strength.[citation needed]
The Hope Channel has a carrying capacity of 58 cubic metres per second and serves to drain the East Demerara Water Conservancy (EDWC) of excess water. The Conservancy is connect to the Channel through the three door head regulator and the water drains at the northern end of the channel through the eight door High Level Outfall Sluice.
The head regulator is an intake structure located at the Southern end of the canal. It consist of a sluice with three green heart timber doors. This sluice allows excess water to flow from the EDWC into the Hope Canal. It is manually operated, and water levels in the canal can be monitored by lowering or rising sluice doors. Water levels in the canal are determined by graduated gauges (Unit being Ft GD) placed at specific locations in both the Hope Canal and the EDWC.
This structure is 17m across, with the three doors measuring 5.5m each. There is also a bridge spanning the channel at the structure; this bridge is 5m wide and 18m long. The wing walls of the structure are reinforced with geotextile fabric and the channel bed is protected both at the inlet and outlet sides of the structure by gabion mattresses, extending several metres outwards.
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Hope Canal
The East Demerara Water Conservancy-Northern Relief Channel, better known locally as the Hope Canal, is one of Guyana's largest drainage projects. Construction was from 2011 to November 9, 2013, at a cost of around GYD$3.6 billion.
Hope Canal was designed in response to the 2005 flooding, when a breach in the embankment resulted in floods to almost the entire East Coast of Demerara causing significant damage to agricultural and residential areas. It serves as a medium to release excess water from the EDWC directly to the Atlantic Ocean via an 8-door sluice, during periods of extended rainfall in order to prevent overtopping of conservancy embankment.
The project was criticized for costing well over estimates and two years of delays.
There are four major components of the Hope Canal Project:
The channel has a length of 10.3 km and entirely straight with a bed width of 30m and a top width of 40m. The embankments are at least 8m higher than the surrounding land areas and the width across the top of the embankments is 5m. Approximately 660,520 cubic metres of soil was excavated, then used for the construction of the channel embankments and supplemented with geotextile fabric for added strength.[citation needed]
The Hope Channel has a carrying capacity of 58 cubic metres per second and serves to drain the East Demerara Water Conservancy (EDWC) of excess water. The Conservancy is connect to the Channel through the three door head regulator and the water drains at the northern end of the channel through the eight door High Level Outfall Sluice.
The head regulator is an intake structure located at the Southern end of the canal. It consist of a sluice with three green heart timber doors. This sluice allows excess water to flow from the EDWC into the Hope Canal. It is manually operated, and water levels in the canal can be monitored by lowering or rising sluice doors. Water levels in the canal are determined by graduated gauges (Unit being Ft GD) placed at specific locations in both the Hope Canal and the EDWC.
This structure is 17m across, with the three doors measuring 5.5m each. There is also a bridge spanning the channel at the structure; this bridge is 5m wide and 18m long. The wing walls of the structure are reinforced with geotextile fabric and the channel bed is protected both at the inlet and outlet sides of the structure by gabion mattresses, extending several metres outwards.