Bridge strength­en­ing to cause de­lays

Work may take three weeks

Central Otago Mirror - - CENTRAL NEWS - By CHE BAKER

Cen­tral Otago mo­torists can ex­pect de­lays as more work on the $770,000 strength­en­ing project gets un­der way on the Alexan­dra bridge.

New Zealand Trans­port Agency se­nior com­mu­ni­ca­tions ad­viser Bob Net­tle­ton short de­lays will be in place for up to three weeks so crit­i­cal weld­ing of new steel strength­en­ing beams be­low the bridge can be fin­ished.

Work would start on Wed­nes­day,be­tween 9am to mid­day, then again from 1pm to 4pm, from Mon­day to Fri­day.

Steam clean­ing would also be car­ried out at night to clean some of the worst ar­eas un­der the Alexan­dra bridge af­fected by pi­geon ex­cre­ment.

Strength­en­ing work started in March and in­volves fix­ing ad­di­tional steel plates to in­crease the depth and thick­ness of 21 beams that take the load from the lighter bridge deck mem­bers.

The job was part of a $1.6m worth of bridge strength­en­ing pro­gramme be­ing car­ried on the high­way be­tween Alexan­dra and Queen­stown.

Other bridges in­volved were the Roar­ing Meg bridge, Gen­tle An­nie bridge and Kawa­rau River, on SH6 be­tween Cromwell and Queen­stown.

The to­tal cost of the work on those three bridges was $840,000.

Once the work was com­pleted, the high­way be­tween Alexan­dra and Queen­stown would be ca­pa­ble of han­dling High Pro­duc­tiv­ity Mo­tor Ve­hi­cles.

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