Here are some photos of the Milton-Madison Bridge project, as provided by the folks at miltonmadisonbridge.comhttp://www.miltonmadisonbridge.com/.
Existing bridge is only 20 feet wide
Existing pier strengthening
Steel reinforcement of concrete piers
Two-foot thick concrete jacket surrounds piers
Two renderings of the new bridge
The project web site is informative, a good read and well done. It's a model for other big projects like this that affect a lot of people. The site has about 10 gazillion photos of the project and the surrounding area. Many thanks to Kathy Francis and others for allowing me to share these photos.