Transportation Secretary Pete Buttigieg said Sunday there is still no timeline for when the wreckage of the collapsed Francis Scott Key Bridge and the crippled container ship Dali will be removed so the Port of Baltimore can reopen.

In an interview with ABC's "Good Morning America," Buttigieg said the Army Corps of Engineers and the Navy are bringing in a 1,000-ton crane and a 600-ton crane to clear the twisted debris from the channel.

"They have not wanted to speculate yet on a timeline because the operation is so complex," Buttigieg said. "It's not that you just have to remove the wreckage, it's that you have to do it in a way that doesn't cause portions of the bridge that are there across the water to shift. They've been under a lot of compression, tension; they could behave almost like a spring if they are not expertly managed."

In addition to removing the debris, Buttigieg said the 248 million-pound shipping vessel still poses a problem, saying, "Measures are being taken to stop the ship from swinging into the channel."

The secretary said part of the $60 million in federal funding released for the cleanup and recovery efforts will also go to the "acquisition, procurement and preparation for the new bridge."

He said that while other East Coast ports have been absorbing container traffic, the Port of Baltimore is uniquely designed to handle the bulk of automobiles shipped to the United States.

"So as soon as it can safely be reopened, that, of course, is a major priority that really affects our entire national supply system," Buttigieg said.

Highly trained demolition crews will begin cutting the top portion of the north side of the collapsed Francis Scott Key Bridge into smaller sections for safe removal by crane. One crane barge and one working barge are staged at the incident to support Saturday’s operations.

Salvage teams will use gas-powered cutters to systematically separate sections of the steel bridge, which will be taken to a disposal site. At the same time, salvage divers continue to conduct underwater assessments of the work site to support further operations. Every lifting operation requires engineering analysis to inform salvage operation plans.

The Unified Command is working in partnership with Baltimore Gas and Electric to reduce pressure of an underwater pipeline that spans the width of the channel and runs under the incident site. Unified Command is coordinating to inert the pipeline to free it from hazards and risk. Pipeline operations will continue through the weekend.

The Unified Command continues to maintain a 2000-yard maritime Safety Zone for the recovery efforts and a Temporary Flight Restriction with a radius of three nautical miles from the surface -- up to and including 1,500 feet above ground level -- also remains in effect.

The Safety Zone is enforced for the protection of personnel, vessels, and the marine environment from the potential hazards associated with salvage work. The vessel remains stable with crew aboard.

-ABC News' Sam Sweeney

The first portions of the collapsed Francis Scott Key Bridge will be lifted out of the water on Saturday, marking the start of attempts to clear the channel to access to the Port of Baltimore, Maryland Gov. Wes Moore announced.

"The north sections of the Key Bridge are going to be cut up and removed, this will eventually allow us to open up a temporary restricted channel that will help us to get more vessels in the water, around the sight of the collapse," Moore said.

"This restricted channel will allow barges, tug boats, and other smaller marine vessels to get around the wreckage. Once these portions are removed, the Army Corps of Engineers and its partners will need to reevaluate and assess the integrity of the wreckage before more sections are removed," Moore said.

-ABC News' Davone Morales

The Unified Command dispatched the Chesapeake 1000 early Friday morning and plans to dispatch an additional seven cranes, 10 tugs and nine barges over the next 120 hours.

-ABC News’ Sam Sweeney

Ten ships -- not including the Dali -- are stuck inside the Port of Baltimore, according to a new update by the Bureau of Transportation Statistics.

They are comprised of: three bulk carriers, one vehicle carrier, three logistics naval vessels, two general cargo ships and one oil chemical tanker.

An additional vehicle carrier is in the port but outside the site of the bridge collapse.

This list does not include additional tugboats, sailboats and private yachts that are also in a holding pattern as the Port of Baltimore remains closed.

The port said Tuesday vessel traffic in and out is "suspended until further notice."

-Noah Minnie and Elizabeth Schulze