Christchurch Northern Corridor

Upgrades in support of new motorway

PROJECT: Christchurch Northern Corridor Downstream Effects – Package 1 CONTRACTOR: Isaac Construction CLIENT: Christchurch City Council (CCC) VALUE: $12.8m

The purpose of this project was to upgrade and prepare Cranford and Sherborne Streets (together with some adjoining side streets and key intersections) for the opening of the new northern motorway (SH1) and subsequent increase in traffic volumes in St Albans, Christchurch.

The scope of the project included laying a new watermain including some lateral mains, together with significant drainage works at key road intersections, new kerb and channel on multiple sites as well as new upgrades for traffic signals and equipment at three main road intersections.

In addition, other intersections were to be altered and upgraded, involving extensive drainage, dewatering and kerb and channel rebuilds. Finally, a large area of the work site required a full pavement reconstruction for carriageway upgrades, whilst other areas of roading would be extensively resurfaced before line marking.

This finished product, delivered ahead of time, while overcoming significant challenges, is Isaac Construction’s largest CCC contract delivered to date, and is testament to its blossoming Tier-1 journey.