One of them is Joe Schwartz.
The 47-year-old was born in Pennsylvania but lived in Morrison for more than a decade.
His friend and neighbor Rick Koskineen says Schwartz lived alone and had a side job plowing the roads around Hilldale Pines.
The news of Schwartz' sudden death understandably came as a shock to his friend, who learned about it on the news.
"And they released the names. And the second name was Joe Schwartz, 47, Morrison. I thought no way. So immediately I went over to his house. And his daughter was there. I can't imagine what she's going through. Good heart. Good man," Koskineen said.
Family members went to the scene of the accident at C-470 and Broadway after hearing about the crash that killed Schwartz and his co-worker Jesus Villalobos.
Villalobos was 27 and lived in Brighton.
He was working for Concrete Works of Colorado. Coincidentally, his relatives own a competing concrete company that bid on the same project Villalobos was working on when the accident happened.
Concrete Works of Colorado Vice President Dick Brasher says this is the first time they've ever had an accident like this in 30 years of business.
The driver who lost control of that Subaru while exiting C-470 onto Broadway is 74-year-old Thomas Garrity from Bellevue, Nebraska.
Garrity and his wife just flew-in to visit family for Thanksgiving.
Garrity was driving a relative's Subaru when, for some reason, he says the car wouldn't stop.
Garrity's son, Mark Garrity, says his parents are physically banged-up but even more emotionally devastated by the deaths of those two workers.
"The hardest part is this is the time families gather together and these families aren't going to have that opportunity to gather with their loved ones. Obviously, this is a tragic accident and I think my dad did everything he could do to try and stop the vehicle but police will determine the final cause of the accident but our thoughts and prayers are with them during this period of time," Garrity said.
The Colorado State Patrol is the lead agency investigating this crash.
Trooper Nate Reid says they'll make sure to do a fair and accurate reconstruction of what happened.
The CSP investigation will also include a mechanical inspection of the Subaru.
Until they finish all that, Reid says they are not ruling out charges in this case.
(KUSA-TV © 2012 Multimedia Holdings Corporation)