The Kansas Turnpike's original Kansas River bridges will be blasted as part of a 30 million reconstruction project.

Count Michael Johnston, president and CEO of the Kansas Turnpike Authority, as among those who will be following Sunday’s scheduled turnpike bridge blast online at LJWorld.com.

The explosive charges — expected to go off at 12:30 p.m. Sunday — will drop a 250-ton section of an original steel bridge structure over the Kansas River onto a temporary sandbar.

While spectators will be kept 1,000 feet from the site, anyone with an Internet connection will be able to watch at LJWorld.com, where streaming video will be shown live.

Johnston plans to join the online crowd from out of town, as he monitors communications from officials on the scene.

“I’ll call it up,” Johnston said.

The blast is the first of several planned along the turnpike’s original Kansas River bridges, now 55 years old.

Wet weather could delay Sunday’s blast, officials said, but only until pavement had a chance to dry out.