This thread has offered some pretty spirited discussion over the years. A few things have changed since the last post more than 3 years ago: the horseshoe interchange rebuild is nearing completion, the toll road on the Trinity that the city said for years had to be complete in order for the horseshoe project to happen never happened and is deader than dead and the area bordering the Trinity to the west of downtown is booming with development, LBJ on the north side was rebuilt, and 183 from Stemmons into Irving is being rebuilt. I'm not sure the discussion and study would even be taking place if the overhead wasn't in such poor structural shape or if money was readily available to replace it. The comment following the NBC5 story from the guy saying he likes the freeway because it isolates Deep Ellum and Old East Dallas from Downtown is...interesting.
I'm interested in seeing what the study shows about traffic flow. This definitely isn't something that will happen overnight.
I've never in my life seen or heard of that section of freeway be called "I-345".