Construction of the Leith Flood Protection Scheme in Dunedin is continuing, and information gleaned from a "moderate rain event'' last month will be used to refine some further planning.
Otago Regional Council director engineering, hazards and science Dr Gavin Palmer made that point in a report which will be tabled at a meeting of the council's technical committee today.
Dr Palmer noted that in-river works in the Dundas St to St David St reach of the scheme had been completed on May 20.
Remaining works to the pathways, including landscaping, had been scheduled to be completed early this month.
And preliminary design work was being finalised for Water of Leith flood protection works, between Union St and the Leith St footbridge.
Preparation and planning was under way with the University of Auckland to construct and run a scale physical model to validate the design of the proposed works, he wrote.
On May 23, a "moderate rain event'' resulted in a peak flow of 32 cumecs measured at the Leith St footbridge at 8.07am that day.
New and existing works had performed well, with no damage resulting, and water levels were accurately recorded.
The flow records would be used to help calibrate the physical model of the reach between Union St and Leith St, and to refine the council's computational model, he said.
