Box Culvert Remediation For Fish Passage

Please take a minute to watch this short video showing the effects of flexible baffles fitted to the invert of a box culvert.
This is a newly installed culvert (replacing an old smaller round one) under a public road in the Bay of Plenty, New Zealand.
It is hoped that over time, smaller bed-material will accumulate among the large rip-rap and between the baffles, creating a more natural habitat.
Also watch out for the juvenile galaxiid (whitebait) that were seen, just a few days after the installation, making use of the baffles to migrate upstream. Enjoy!