Construction began in early January and is now in full swing. I've looked at the construction plans a good bit and got to do the river survey in my kayak but there is definitely not going to be a kayak feature unfortunately. They built coffer dams in the river right now for construction platforms but after it's all said and done the idea is that the river will be pretty much the same as it was before construction. Won't be complete until summer of 2018.
Overview map and other good info can be found here: https://www.codot.gov/projects/sh82grandavenuebridge