Thanks to Rebel Patriot for sending this in, I can't get the video of the collapse of the J.L. Hudson building to work on my machine, but maybe someone else can get it to work:

In 1998, Controlled Demolition, Inc. brought down through implosion the JL Hudson Department store building in Detroit, MI.

It was a world record blast for CDI, but there was damage to the nearby People Mover rail system, as steel beams were shot out over 50ft onto the tracks. The damage claimed to the insurance of CDI, Inc. was nearly $4 million. Please view the links below, and the images of the demolition damage to the tracks. Compare the damage witnessed at the Hudson Demolition, to the WTC damage of ejected steel columns, view the 9/11 Eyewitness video clip of the ballistic path of the debris from the Twin Towers collapse:
http://plaguepuppy.net/public_html/video%20archive/projectile.avi

Hudson Building, steel column ejected from demolition on the track of the Detroit People Mover railway system. $4 Million in damage.
http://www.pub.umich.edu/daily/1998/oct/10-26-98/news/news4.html
http://www.merit.edu/~jimmoran/detphot/hudsons_demolition.html

Hudson debris is like volcanic ash: http://www.pub.umich.edu/daily/1998/oct/10-26-98/news/news4.html
“Look at the dust. It's like volcanic ash," Barbara Sutton told her husband Don yesterday. The couple from Macomb County's Washington Township watched the blast on television Saturday and decided to see the remains themselves the next day.”

Looked like a bomb went off:
“It looks like a bomb has hit. It's just unbelievable that that big building is down. It was awesome, awesome," said Paul Johnson of Detroit, who as a member of the demolition crew walked around the building's remains shortly after the blast.”

Jennifer Dixon Detroit Free Press 25 Oct. 1998
http://www.merit.edu/~jimmoran/detphot/hudsons_demolition.html

Railway damaged:
“In the aftermath, a handful of shattered windows could be seen in the buildings facing Hudson's along Woodward. Debris and several steel beams rested across the People Mover concrete track.
The track curved within 10 to 12 feet of the store's block-long facade. City officials and Jim Santoro, senior project manager for Controlled Demolition Inc., a part of the demolition team, said the damage was cosmetic.”

8 Concrete-filled steel columns landed on the track, 50 ft. away from the building:
http://seattlepi.nwsource.com/local/boom16.shtml
Snel, Alan “Neighbors wary of Kingdom demolition.” Seattle Post-Intelligencer
“But when Hudson's fell, eight concrete-filled steel columns collapsed outward, falling across the People Mover, said Albert Martin, director of the Detroit Department of Transportation. The damaged monorail was about 50 feet from the old 28-floor store -- until the explosives went off, Martin said.”

Photos of damage to Detroit’s People Mover light-rail:
http://www.advancedgeomatics.com/projects/dpm/dpm_Hudsons.htm