Just like anything in the trenchless construction world, the feasibility of a culvert rehabilitation & reline project starts with high quality engineering. Recently, Don LeBlanc and Don McGriff spoke at the Transportation Research Board conference in D.C. on the topic of improving entrance losses and headwater conditions. In this version of Reline LIVE, you will hear from “the Dons” on their experience with helping owners and engineers out with their hydraulic concerns. They will discuss the various types of inlet modifications (including the HydroBell by ISCO/Snap-Tite) and how they have been modeled in various engineering programs.