Johnson Bros Ltd designed an innovative dredging tool to tackle an invasive seaweed in the Bay of Islands.

Caulerpa Seaweed Dredging

Construction of jetty, installation of pontoon and associated berthing piles, dredging of 5000m³ of seabed material. Johnson Bros were the sole contractor on this design and build project

Clendon Cove Jetty and Dredging

Johnson Bros Ltd installed 610 OD X 16mm WT drilled and driven steel berthing piles and dredging of 2000m³ of hard rock.

Jacks Bay dredging and jetty construction

The project involved the construction of 300lm of 3m wide boardwalk and the installation of 25m Timber Jetty and a Floating pontoon. Johnson Bros Ltd were the exclusive marine contractor on the project, subcontracting to United Civil Construction.

Mangonui boardwalk

JBL completed 2000m³ of capital dredging works to install a small 12 berth marina at a private residence.

Omarino Jetty, Marina and Dredging

Johnson Bros Ltd constructed an 80lm Timber Jetty with installation of a floating concrete pontoon (12m x 4m) with fender piles and 7000m³ of captial dredging work.

Opua Boatyard Jetty, Floating Pontoon Construction and Dredging

Johnson Bros Ltd installed three 12x2m floating pontoons and associated aluminum gangways, to replace the derelict wharf structures.

Paeroa Pontoons

Working alongide Port Nelson Maintenance team, lead by Fulton Hogan, 20m fender piles were installed to maintain wharf integrity.

Port Nelson

JBL are committed to providing Marine Emergency Responses and have completed many technical and high-risk salvage jobs throughout Northland.

Salvage Work

Johnson Bros Ltd were contracted to remove existing damanged piles and repair associated berthing structure following damange by a berthing vessel

Previous Projects