FORT WORTH, Texas -- Demolition crews successfully imploded a major North Texas landmark Saturday morning.

Workers with D.H. Griffin of Texas leveled the 30-story Landmark Tower in downtown Fort Worth after four months of planning.

The event was scheduled for 8 a.m., but actually took place at about 7:40 a.m. due to a storm that was moving into downtown Fort Worth.

The implosion was a success and the building fell the way demolition experts intended, but several windows on the Baker Building to the east of the Landmark Tower were damaged.

Cleanup is scheduled to begin right away, but officials said it will take around 90 days to completely clear the debris.

Thousands of spectators braved rainy, chilly weather to watch the 1950's era building be brought down in the controlled blast.

The site is being redeveloped to make room for a parking lot.

NBC 5 reported that it will took 364 pounds of explosives to take down building.

"It's a very tall building, probably one of the tallest buildings ever imploded in the world," demolition company representative John Angelina said.

In anticipation of the demolition, those in neighboring buildings were concerned.

Ginna Yeager, with First Christian Church, was ready to see the "eyesore" go, but also cringed at the thought of its collapse so close to her historic church.

"They're going to hang some type of ceramic curtain that's supposed to absorb the shock wave and any debris that would fall," she said.

At Mikado sushi restaurant, customers also voiced concerns.

"Me, personally, I'm worried because of all the windows and stuff," restaurant representative Harp Damrichob said.

However, Angelina said the implosion would go as planned.

"It just takes a lot of planning. We know it will go where we want it to go," he said.

The building's owners were so certain things would go well, they raffled a chance to press the button that that will spark the implosion.

Members of Boy Scout Troop 326 pushed the button. Den mother Betty Rogers purchased the winning ticket.

On Friday morning, crews shut down two lane on each of these streets surrounding the building: Throckmorton, Houston, Sixth and Seventh. The lanes will be used to accommodate trailers and other demolition equipment.

Officials created a 15-block safety perimeter around the area beginning at 5 a.m. Saturday.