Levin Pump Station and Wastewater Rising Main Contract Project - - PowerPoint PPT Presentation

Levin Pump Station and Wastewater Rising Main Contract

Project Overview

Construction of :

• New Pump Station at Levin

Wastewater Treatment Plant

• Control Building
• Laying of 7km of 560 dia PE

pipeline

• 22 Air valve Structures
• Outlet manhole in pond

Job Location

Machinery Used

Labour Force

LABOUR FORCE Hawkins Infrastructure: Project Manager, Construction Manager, Site Manager, Quantity Surveyor. Subcontractors included: Drainage – Higgins Levin PE Welding and Testing – City Care Pump Station Civil Works – Bailey Civil Pump Station Mechanical and Electrical – Max Tarr Stream Crossing – GP Friel Directional Drilling – Universal Underground

SITE CONDITIONS

WEATHER CONDITIONS Very wet weather and storm events May, June and July, The remainder of the project timeline the weather was fairly good. SITE ACCESS, LOCATION EASY OR DIFFICULT Of the 7km of pipeline, 6km was either on the road shoulder (of a country road) or in the laneway. Many issues with traffic management and the need for constant Hawkins Site Manager attention. GROUND CONDITIONS Varied greatly both vertically and along the alignment. Some sections were clean dune sand which made for unstable trenches for which shields were required over 1.5m deep.

SITE CONDITIONS

.

Innovative Ideas Used

Human Relations

HEALTH AND SAFETY ISSUES Need to improve local sub-contractors understanding

• f HSE requirements onsite.

Ensure that Method plans and risk analysis being followed onsite. Improvements were identified and immediately put in place. HSE attitude was turned around quickly EMPLOYEE TRAINING GIVEN The pipe manufacturer, IPLEX provided a Powerpoint presentation and practical training of how to handle, store, transport and joint PE pipe. They also frequented site to ensure there were no major issues and provide support where necessary. ANY SUBCONTRACTOR ISSUES A lack of experience in large scale drainage and the ability to troubleshoot problems.

Arawhata Stream Crossing

The biggest challenge

• n the project

Originally this section of pipeline was intended to be directional drilled Open cutting through the stream in the middle of winter

Was the Job on Time

Mutual extension of one month to 20 August Practical completion 13 October

Was the Job on Budget

Completed within Council’s Budget

Variations

39 variations - most minor design changes

Any Questions ?