When will I-95 reopen in Philadelphia? Here’s what we know.

Last week, a tanker truck explosion caused a portion of I-95 in Northeast Philadelphia to collapse, killing the driver and closing the busy highway in both directions.

Now, with crews working around the clock (and having their efforts livestreamed), I-95 is on the verge of reopening to traffic over six-lanes of temporary highway built on a bed of recycled glass bottles repurposed as gravel.

“We haven’t always had a can-do attitude around here, that we can get big things done, that we can get it done quickly and safely,” Gov. Josh Shapiro told reporters Tuesday. “We’re going to change that attitude of people being surprised to folks expecting excellence from us.”

Here’s what we know about the timing of construction at the I-95 collapse site:

On Thursday afternoon, Shapiro announced I-95 would reopen in both directions on Friday at noon.

The highway will reopen with six lanes of temporary pavement — three lanes each way — resting on a bed of recycled glass aggregate made of discarded bottles turned into a lightweight, gravel-like material.

The material has been used to backfill several other Philadelphia-area projects, including an overnight parking apron for airplanes at Philadelphia International Airport.

“It’s safe, it’s sound, it’s ready to go to work,” PennDot Secretary Mike Carroll said Tuesday.

The temporary reconstruction of the northbound lanes appeared to be nearly complete Wednesday morning, and work on the southbound lanes was expected to continue throughout the day. Once finished, crews will pave all six lanes, followed by painting and striping.

Here’s a rendering provided by PennDot of what the temporary fix will look like.

“Everyone has worked around the clock to get this done. We have completed each phase of this project safely and way ahead of schedule,” Shapiro said at a news conference in Philadelphia Tuesday.

Even after I-95 reopens this week, the Cottman Avenue exit from northbound I-95 will remain closed as crews work to fully reconstruct the highway, according to PennDot.

It’s unclear if any other ramps in the area of the collapse site will remain closed to traffic once the temporary lines of the highway reopen later this week.

While I-95 is expected to reopen with six temporary lanes by this weekend, there is no official timeline for the full reconstruction. Officials have said they expect it to take months.

“I’ll be able to provide a concrete timeline on that work once it begins,” Shapiro told NBC10 Tuesday.

Once I-95 is reopened over the temporary six-lane bridge, crews will rebuild the outer sections of the bridge. Once completed, traffic will be diverted to those four lanes — two in each direction — as the recycled glass aggregate is removed and the inner sections of the bridge are built.

Once completed, I-95 will fully reopen with four lanes in each direction.

Contractors, overseen by Philadelphia-based Buckley & Co., will rebuild the collapsed bridge using the same design as when the bridge was built less than a decade ago.

Sixteen I-beams will be laid across the supporting concrete walls on either side of the Cottman Avenue exit ramp. Then an 8½-inch-thick bridge deck, made from sturdy, steel-reinforced concrete, will be placed on top, Din Abazi, chief bridge engineer for PennDot District 6, told The Inquirer.

I-95 remains closed northbound at Exit 26 at Aramingo Avenue, and southbound at Exit 30 at Cottman Avenue.

The 24/7 livestream of repair work at the I-95 collapse site is available on PennDot’s website.

You can also stream it here, via PennDot:

“I have to confess, I’m completely addicted to the live stream,” Shapiro said Tuesday, telling reporters he checks it before going to sleep and first thing in the morning when he wakes up.

South of the collapse site, work is underway on another I-95 project that won’t be delayed by the emergency reconstruction of the highway.

Construction will move along as planned on a long-await cap over I-95 in South Philadelphia that will connect people directly to the waterfront between Chestnut and Walnut Streets with an 11.5-acre park.

There will also be a new pedestrian and bike bridge built over the highway that will connect South Street to the waterfront.

Major demolition and construction is expected to start this month, and plans don’t call for an immediate disruption of I-95.

The $328.9 million project is expected to take four to six years to complete. Major work will include demolishing the bridges at Chestnut and Walnut Streets, the existing cap over I-95, and the Great Plaza. After that, they’ll build the cap over both I-95 and Columbus Boulevard, which will include building amenities and landscaping.

“This is literally a transformation project for the city, the waterfront, and the region,” said Joe Forkin, chief operating officer of the Delaware River Waterfront Corp. “It will reconnect the city at the most difficult part of the waterfront. At this section, there’s just the wall of I-95. We’re going to cure that which was unfortunately done in the ‘60s and ‘70s. I think the amount of private development that this leverages will become massive.”

» READ MORE: Philly’s other big I-95 project to start: A cap with an 11.5-acre waterfront park, South St. pedestrian bridge

Staff writers Jason Laughlin, Tom Fitzgerald, Frank Kummer, and Tom Avril contributed to this article.