Comparing Baffle Types in Round Culvert

Hi everyone, 

We hope you are staying safe and well. 

As shared a short while back, we have started using Computation Fluid Dynamics (CFD) to solidify what we already knew about culvert/weir baffles and their fish passage improvement features.

CFD is a powerful engineering tool used to simulate the action of fluids in a structure at a resolution not normally visible to the human eye.

It is well known that fish prefer deep water, complex flows and lower velocity, so it is exciting to see just how much of an impact different types of baffles have on the flow dynamics.

The independent CFD simulation was able to demonstrate the depth, and changes to velocity, with and without baffles installed.

The baffles included in this study were, Type 1 Spoiler Baffles, Type 3 Spoiler Baffles and Flexi-Baffles.

Below is a link to a Glide-show and we hope you find it as interesting as we did!

Contact the Fish Passage Action Team if you want to know more, and perhaps run a simulation on a structure that you are planning to remediate.

CFD Fish Passage Simulation (adobe.com)

Pongakawa Wetland Reconnection

Hi all,

Some of the Fish Passage Action Team were recently involved in a very satisfying restoration project.

It is rare that we get the opportunity to completely remove culverts in an effort to restore fish passage so we wanted to share this with you.

See what two workers and a small excavator can manage in a day.

Alex put together this short “Glide-Show” so you can scroll through it at your own pace.

https://spark.adobe.com/page/PXhOPliyaGp7o/

Culvert Webinar

Upcoming Relive LIVE:
Learn How to Maintain Hydraulic Capacity of Culverts & Protect the Fish
 
Thursday, April 29th @
8:30am PT / 11:30am ET (USA).
Note this time may not suit so we will post a link to a recording once done.
Learn how installing flexible culvert baffles is an easy and inexpensive method to improve fish passage through culverts. Salmon, trout and other fish and aquatic species are often blocked from their habitat by poorly designed or constructed culverts. Repairing or removing culverts is costly and requires considerable time and resources. SSA Environmental LLC has developed culvert baffles that improves fish passage in an effective and economic manner.
Register Here