Proposed designs for new Mackenzie-Wismar bridge unveiled

…despite incomplete environmental, social impact assessment

As plans move apace for the construction of a new Mackenzie-Wismar Bridge in Region 10 (Upper Demerara-Berbice), four possible designs were unveiled during a virtual presentation by Politecnica Engineering and Architecture company on Tuesday evening.

The project is being executed as part of the Transport Sector Enhancement Project. Speaking during the presentation, Politecnica Environmental Management Specialist Marciano Glasgow emphasised that while the company has proceeded with the designs, an environmental and social impact assessment is being conducted.
He noted that as part of the process stipulated by the Environmental Protection Agency (EPA), the company was required to return to the community and discuss the design alternatives proposed to the Public Infrastructure Ministry and as such, the virtual forum allowed for the public to share its views on the proposed designs.
Glasgow noted that the company was cautioned that bauxite still played a significant role in the livelihood of the Linden community and consideration should be given to the fact that ships transporting bauxite traverse the area; therefore, the selected design must not obstruct the regular flow of vessels. Another stipulation he mentioned was that the new bridge has to be of a certain height to allow easy access underneath the structure.

In his presentation, team leader Francisco Reina said that the new bridge proposed would be situated upstream and south of the existing bridge.
It was noted during the presentation that the existing bridge would remain in place, with it being utilised for pedestrians and non-vehicular traffic.
A decision has not yet been made, but Reina highlighted that the company has designed a two-road approach – one for the east bank and the other for the west.
On both sides, the designs cater for new roundabouts which will connect the existing road networks. The bridge will also cater for two-lane traffic and pedestrian walkway, and would be designed in such a way to cater for culverts related to existing roads.
The bridge will span 44 meters. According to the design, the bridge, road approaches, and roundabouts will be equipped with street lights, underpass/culvert to maintain the continuity of existing roads, road safety barriers and sidewalks, with provisions made for access to the Linden Hospital Complex at Mackenzie.
Following the presentations, Deputy Mayor of Linden, Wainewright Bethune suggested the need for another consultation. The team has planned further engagements with the necessary stakeholders. The project is also expected to play an integral role in the Linden-Lethem road network.