A friend of mine has a holiday visitor from Lithuania who's a highway engineer and very interested in the I-35W bridge collapse. Looking for ways for him to learn more about last summer's bridge collapse, I just found this at the official bridge building website: View the construction progress every Saturday at 11 AM for a free Sidewalk Superintendent Talk led by project representatives who will describe the design/build process and answer questions. Everyone is welcome! Meet at the corner of Washington and 19th Avenues (in front of Grandma's Saloon).