A truss and gusset plate remnant (U10-U11W truss) recovered after the I-35 W Mississippi River Bridge collapse on August 1, 2007. This remnant is from the U10 and U11 truss nodes which were identified by the National Transportation Safety Board (NTSB) as a likely initiation site for the bridge failure.

Highway identification sign for Interstate 35W. The sign stood on Bridge 9340, which carried I-35W over the Mississippi River in Minneapolis. The sign stood on the bridge at the time of its collapse on August 1, 2007. Its surface is heavily scratched, and this damage may be a direct result of the collapse.

Emergency exit door from a school bus made by the Blue Bird Corporation of Fort Valley, Georgia, circa 2007. The school bus was transporting a group of day camp students when it was involved in the collapse of the I-35W bridge in Minneapolis on August 1, 2007. The door is signed by all of the children and adults who were on the bus at that time.

View of the I-35W bridge wreckage in the Mississippi looking through the arches of the Tenth Avenue bridge in Minneapolis. Photograph by Kevin Rofidal (Edina Police Department), August 4, 2007.

First responders next to the smoking wreckage of the bridge. Photo taken by Wikimedia Commons user Tony Webster, August 1, 2007. CC-BY-2.0

Oliver Mining Company employee gardens, 1923. Oliver Mining Company allowed employees to plant and harvest from gardens within their communities. This garden was located in Fayal Location, near Eveleth.

Oliver-built homes in Taconite, 1920. Similar to those built in Marble, Oliver built homes in nearby Taconite to accommodate for the growing Canisteo District population and workforce.

Oliver-built homes in Marble, Minnesota, 1920. The company designed and built homes in in the Canisteo District for employees to live in as they populated towns throughout the western Mesabi Range.

Labor Day Parade, Nicollet Avenue, Minneapolis, 1909.

Labor Day Parade, Nicollet Avenue, Minneapolis, 1909.