Flexi Baffle Size and Spacing Recommendations

We would be glad to discuss the specifics of your project. The following are general guidelines on Flexi Baffle size and spacing recommendations in North America. There are a variety of alternative Flexi Baffle configurations you can consider depending on the purpose of your installation. Please do not hesitate to contact us as we are always glad to help.

For Round Culverts: We recommend installing Flexi Baffles perpendicular to flow about 1/3 the circumference of the culvert radius. The length of the Flexi Baffle is recommended in Table 1 below. The spacing of the Flexi Baffle is dependent upon the gradient of the culvert, as recommended in Table 2.

For Squashed or Flat-Bottomed Culverts or Aprons: We recommend the Flexi Baffles should be installed perpendicular to flow, across the width of the channel. The spacing of the Flexi Baffle is dependent upon the gradient of the culvert, as recommended on Table 2.

Typical Flexi Baffle configuration in a flat bottomed culvert.

Flexi Baffle Drawing for a Flat Bottomed Culvert

Typical Flexi Baffle configuration in a round bottomed culvert.

Flexi Baffle Drawing for a Round Bottomed Culvert