Mt Crosby Weir - Pier 7 Repair & Sluice Gates Upgrade

Seqwater is seeking proposals for the Mt Crosby Weir - Pier 7 Repair and Sluice Gates Upgrade project.

The temporary and permanent works are:
• design, furnish, fabricate transport, install, construct, maintain and remove (at the completion of the Works) temporary diversion structures and protective works
• construct and maintain a temporary downstream cofferdam (including contouring banks)
• design, furnish, transport, install, maintain and operate pumps (or other surface dewatering systems)

Pier 7 Repairs
• concrete preparation – concrete demolition, excavation, scabble existing concrete, prepare / clean rock foundation, install foundation dowels, install dowels into concrete weir
• construct a reinforced concrete buttress at Pier 7 and backfill with mass concrete

Sluice Gates Upgrade
• fabricate and install a bulkhead upstream of existing sluice gates
• fabricate, install and commission two new sluice gates at Pier 10 and 11 (requires fabrication and installation of an upstream bulkhead)
• decommission sluice gates at Piers 8 and 9 by entombing in mass concrete (using upstream bulkhead)
• procure and supply portable electrically powered gate actuator

Weir Bridge Guardrail Upgrade
• fabrication of steel plates
• welding of new plates to existing base plate
• anchoring of extended based plates to outside bridge girders

For detailed information on the specific goods / services sought under this tender, please review the "Specification Documents" in "Section D".