Overview
- The Eisbach's standing wave has not returned since the latest streambed cleaning despite its four-decade run as a surf attraction.
- City leaders favor placing very coarse gravel to approximate the pre-cleaning bed profile and potentially trigger wave formation.
- A 1:5 physical model, including a temporary “baby wave,” is expected to run in the week of November 17 to trial short- and long-term measures.
- Earlier attempts to adjust upstream and downstream parameters failed to re-create the necessary hydraulic jump, and the exact cause remains unclear.
- Any in-channel work requires a water-law permit and the timeline is undecided, with Prof. Robert Meier-Staude set to lead the gravel experiment alongside university teams.