The long process of six-laning Interstate 225 through Aurora is on the front burner, with an open house scheduled Wednesday so CDOT can show the public what work will be done on the old four-lane section between Second and Mississippi Avenues.

The project also includes restriping the upgraded but still four-lane section north of Second, where drivers have plenty of wide concrete but only two through lanes until more widening is completed.

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The meeting is set for 5 to 7 p.m. in Wheeling Elementary School, 472 S. Wheeling St. There will be a formal presentation at 6 p.m., but the public can stop in anytime in the two-hour period and discuss the project one-on-one with staffers from the Colorado Department of Transportation.

“This is an informational meeting that will discuss the upcoming improvements, including noise mitigation,” said CDOT Resident Engineer Rick Erjavec.

CDOT hasn’t yet selected a contractor for the project, and the construction schedule isn’t yet set. But when it is completed, CDOT will open six through lanes for the entire segment between Interstate 70 on the north and Mississippi on the south.

That would leave the segment from Mississippi to Parker Road as the only stretch still at four lanes. Traffic would still face bottlenecks there, but mobility would be improved for those traveling within the segments to the north of Mississippi.

I-225 was built in segments from north to south starting in the early 1960s. The area of this new project was first built between 1966 and 1970. It reached Parker Road in 1972 and made the final connection to Interstate 25 in the Denver Tech Center in 1977. The leg from I-25 to Parker Road was widening by 2006 as part of the T-REX project.