Overview
- After a November 12 meeting with experts and the surf community, the city favored depositing very coarse gravel as a temporary sediment layer to recreate pre-cleaning flow conditions and potentially restart the wave.
- A 1:5 physical model is slated to begin operating in the week of November 17 to evaluate near-term restoration options under realistic conditions.
- The attempt will be led by Professor Robert Meier-Staude of Hochschule München, with specialists from Helmut-Schmidt University Hamburg and the University of Innsbruck involved.
- Any in-stream work such as placing gravel requires a water rights permit, so the timing of field measures remains undecided.
- Earlier efforts to adjust upstream and downstream parameters, including raising water levels, failed; the precise reason the wave vanished after October cleaning is still unclear, and the city warns against illegal ramps that briefly revived it.