Neumann Completes Maroochy River Dredging

The Maroochy River dredging and beach renourishment scheme for 2015 has been completed by Neumann Contractors.

The Sunshine Coast Council (SCC) required the dredging of sand within the Maroochy River.

This involved the mobilization of the 450mm cutter suction dredge the “Nu Endeavour” through the Maroochy River mouth and the dredging of 75,000m3 of sand through an existing 400mm diameter pipeline located in the dunes.

This sand was used to renourish a 1.5km stretch of beach between the Maroochydore and Alexandra Headlands Surf Lifesaving Clubs.

Scope of the work

The requirements particular to the operation included:

• Supply of the 450mm CSD dredge, booster and ancillary plant;
• Dredging of 75,000m3 of sand from the approved area within the Maroochy River;
• Placement of 75,000m3 of sand to the approved beach locations and profiles as required by SCC;
• Site rehabilitation and rectification as required.

Challenges

Due to the migration and spawning activities of commercially and recreationally important species of fish within the area. Dredging could not occur during the two days prior, the day of and two days after the new and full moons.

Despite these restrictions and with a four month time frame available, the dredging and beach nourishment works were completed in under 2 months.

[mappress mapid=”21149″]