A small depression through a pocket park at the end of Lanark
St could be one way to divert surface water from Mosgiel's
main shopping street in extreme rainstorms.
A depression would channel some water away from Gordon Rd
into Lanark St, where it would enter the stormwater system,
Dunedin City Council transportation operations manager Graeme
Council and New Zealand Transport Agency staff met earlier
this month to discuss ways of preventing the flooding of
Gordon Rd shops that happened in an unusually heavy deluge in
Excess water flowing on Gordon Rd used to be diverted down
Lanark St before it was closed off at the Gordon Rd end about
10 years ago, Mr Hamilton said.
Creating a depression through the pocket park there now - the
depression could still be crossed by mobility scooters -
could see that water diversion happening again.
That would help, as the issue was around the volume of
flowing water being such that the entry points to the
underground stormwater system were unable to receive all of
it in such a short space of time, he said.
Another idea being considered was widening the channels
around pedestrian crossing protrusions so they could hold
While no decisions had been made, they were two examples of
minor improvements that could be made to reduce the amount of
water flowing on Gordon Rd in exceptionally heavy deluges
like that which caused the most recent flooding. Who would
pay for the work would be decided later, he said.
Ideas would be formalised and presented to the Mosgiel-Taieri
community board in the first quarter of next year.