WOODHAM ROAD

DESCRIPTION

CLIENT

SCIRT (MacDow-Fletcher JV)

VALUE

$3 Million

SECTOR

Water Infrastructure

TECHNIQUE

Open trench pipe laying

During the Christchurch earthquake of 2010 the main trunk sewer constructed in the 1950’s was significantly damaged and required replacing along 130m length running under Woodham rd. This would require the removal of the 1.5m square concrete culvert (320t worth) and replacing it with 2000mm twin wall HDPE pipeline while live flows were maintained.

The replacement required March to install over 300t of sheet piles to facilitate the excavation of the open trench that would house the future pipeline. A 1200mm HDPE temporary bypass line with a live cut in to the existing sewer had to be undertaken. Well point dewatering facilitated the trench bottom to be dry during installation. Over 3000m3 of compacted back fill was required to fill the trench and reinstate the road surfaces, all the while only 3m away from residential properties.  

SOLUTIONS

Want to get

in touch?

Auckland
100 Wiri Station Road, Wiri

Auckland 2104
 

Christchurch
1220 Main Road North, Kainga

Christchurch 8083

© 2019 March Construction. Part of the Soletanche Freyssinet Group

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