Denney Excavating Inc. (DEI) began the demolition at 9 a.m. and all of the walls had come "crumblin' tumblin' down" by around 10.
Randy Denney, who owns the excavating company, described the job as going very well, particularly for a building that has been vacant for more than a year.
"The longer a building sits and decays, the more unstable and unpredictable it is," Denney said. "But bring the right tools and you can do just about anything -- and the right tools include the right operator. That's where it all starts."
The longtime Greencastle business occupied 18 W. Washington St. from 1964 until Thanksgiving weekend 2010, when the second floor collapsed onto the first floor.
The other complicating factor to Tuesday's work was the proximity to other buildings and to West Washington Street (U.S. 231). Although the lot east of the building was already vacant, the old Central National Bank building adjoins to the west.
Denney said the first goal is to protect people and secondly to "limit collateral damage."
"A lot of thought goes into it before you do the job," Denney said. "You start off thinking of the worst thing that can happen and then you start working backward."
The block of West Washington Street was closed down while work was being performed close to the front of the building to keep automobiles from being too close.
The Central National Bank building appeared to escaped unscathed. However owner Trudy Selvia, whose desk sits on the adjacent wall, came out front to watch the action when her desk began shaking.
The collateral damage was limited to a tree near the building, which came down with the last section of the east wall.
"Hopefully by Friday we have the sidewalk open," Denney said.
Downtown pedestrians should be thankful to have their walkway back.