Columbia leaders have wanted to reroute train traffic for more than 100 years. Now, they have the money to do it.

One railroad crossing in Elkhart, near the intersection of Hively Avenue and Main Street, gets roughly 75 trains a day. That equates to about 3.5 hours daily that trains are blocking traffic.

After years of waiting, a clearer picture of the largest transit project in Austin history is taking shape in a 16,000-page ...