They are 40-year-old Marshaye Flowers of the 2400 block of West Harold Street and 25-year-old Asia Nicole Holland of the 8500 block of Luther Place.
A man driving the SUV was injured and was taken to the hospital in stable condition. His name has not been released.
The crash happened before 9 a.m. Friday in the outer northbound lanes of the boulevard near D Street in the Feltonville section.
Video from Chopper 6 HD showed a beige Ford Expedition with heavy front-end damage wedged against the rear section of a tractor-trailer.
Action News is told the injured man was at the wheel of the SUV when it hit the tractor-trailer, which was parked in the right outer lane of the boulevard.
The driver reportedly told investigators he was trying to pass slower-moving traffic in the right lane and did not see the truck parked there.
The two women riding in the SUV were pronounced dead at the scene by arriving medics.
All outer northbound lanes of the boulevard were shut down at the scene immediately following the crash, as police investigated.
Action News is told the tractor-trailer was legally parked at the time of crash.
The driver of the 18-wheeler told us he had been taking a federally required rest break and was at a nearby hotel when the collision happened.
Neighbors told us they are not surprised by the deadly crash. They indicate there is a bad mix along this part of the Boulevard: outer lane parking is permitted most times, and cars are going fast.
"They allow cars to park in the Bouelvard. Why? I don't understand it," said Edgar Rincon.
And even though the speed limit is 40 mph, Rincon says "No, no, no. Nobody does 40. Everybody does 55, 60."
Edwin Rivera had a similar take, saying "There is a speed limit, but they don't believe in the speed limit. It's a race track."
Police had been investigating the possibility that a third vehicle was somehow involved, but investigators now believe the only vehicles involved were the truck and the SUV.
Police investigating why an SUV slammed into rear of a parked truck on Roosevelt Boulevard 2 woman pronounced at the scene pic.twitter.com/sXFmM8mLql— John Rawlins (@JRawlins6abc) April 14, 2017
Police are looking for witnesses and surveillance video as the investigation continues.
There was no immediate word on if the driver will be charged.
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