MWH laps up awards

DEMM Engineering & Manufacturing - - WATER -

MWH New Zealand won two of the three awards pre­sented by the In­sti­tute of Pub­lic Works Engi­neer­ing Aus­trala­sia, New Zealand Divi­sion (IPWEA NZ), at the in­sti­tute’s an­nual award cer­e­mony in Auck­land in June.

The IPWEA awards recog­nise engi­neer­ing ex­cel­lence in in­fra­struc­ture projects com­pleted in New Zealand in the last two years.

MWH New Zealand won The Phys­i­cal Works over $10m award for the Eastern Sel­wyn Sew­er­age scheme at Rolle­ston. The com­pany, with project part­ners Sel­wyn coun­cil and HEB Con­struc­tion, won the cat­e­gory for its de­sign, de­liv­ery and devel­op­ment of the scheme at Rolle­ston, near Christchurch.

The Phys­i­cal Works Projects ($2m to $10m) award for the Ma­pua Wharf Wastew­a­ter Pump Sta­tion.

Due to ex­pected pop­u­la­tion growth, a new pump sta­tion was needed for Ma­pua wharf in the Tas­man district, but the pro­posed lo­ca­tion was ac­knowl­edged as once the most con­tam­i­nated site in New Zealand – it was the for­mer Fruit­grow­ers’ Chem­i­cals Com­pany (FCC) man­u­fac­tur­ing plant site.

MWH New Zealand took on the chal­lenge af­ter be­ing com­mis­sioned by Tas­man coun­cil to eval­u­ate the Ma­pua wastew­a­ter retic­u­la­tion sys­tem and pro­pose how it could meet the ex­pected dou­bling of the area’s pop­u­la­tion over the next 30 years.

The de­sign en­sured that the vol­ume of con­tam­i­nated earth­works and ground wa­ter need­ing to be dealt with was min­imised. Ex­ca­vated ma­te­rial was not al­lowed to come into con­tact with any other land area, ve­hi­cle or person be­fore be­ing trans­ported in lined trucks to the coun­cil’s land­fill.

Another chal­lenge was de­sign­ing and con­struct­ing the pump sta­tion in a re­stricted space at Ma­pua wharf, a tourist hot spot. This meant it had to be aes­thet­i­cally pleas­ing with no odour.

Dur­ing con­struc­tion, strin­gent pre­cau­tions en­sured the health and safety of con­trac­tors and the com­mu­nity. Site staff wore full body pro­tec­tive cloth­ing and had to ob­tain the ap­pro­pri­ate in­oc­u­la­tions.

MWH, with the coun­cil and project part­ner Ching Con­tract­ing, de­liv­ered a cost-ef­fec­tive out­come that met the project re­quire­ments. The project was led by MWH en­gi­neers Avik Halder in Nel­son and Grant Shearer in Welling­ton.

A third and fi­nal award was won by a project team rep­re­sent­ing 18 or­gan­i­sa­tions that pre­pared re­vised stan­dards for build­ing and engi­neer­ing projects.

The IPWEA projects of in­ves­ti­ga­tion, re­port­ing sys­tems or pro­cesses award was won by a range of in­dus­try rep­re­sen­ta­tives for their re­view of NZS 3910/3916/3917 suite of stan­dards.

An­drew Brick­ell, MWH New Zealand’s chief engi­neer for con­struc­tion con­tracts, pre­pared this award en­try on be­half of the 18 pro­fes­sional or­gan­i­sa­tions that par­tic­i­pated in the re­view of NZS 3910 dur­ing the pe­riod 2010-13.

An­drew had un­der­taken the scop­ing study for this re­view, then rep­re­sented ACENZ and IPENZ on the re­view team that wrote the three new con­tracts.

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