Overview
- The surfers' group IGSM says the standing wave is absent and urges people to stay out due to altered, potentially dangerous flow.
- Reported readings near 1.25 meters are below the roughly 1.40–1.50 meters typically needed for a stable standing wave.
- At IGSM’s request, the city set about 1.45 meters and roughly 25 m³/s at the Himmelreichbrücke on Monday, yet the wave still did not form.
- Authorities are assessing whether dredging during the Bachauskehr or reduced diversion at the Praterwehr changed hydraulics, while a Monday inspection found no damage and the city says no structural changes were made.
- CSU/FW councilors pressed for a rapid fix as new floodlighting went live for safety after an April fatality, with surfing hours restricted to 5:30 to 22:00.