U.S. Route 287
In 2007, @ColoradoDOT partnered with Holcim Inc. and Castle Rock Concrete Construction Company to create a sustainable concrete pavement solution using Class F Fly Ash.
- On March 13, 2023
In 2007, @ColoradoDOT partnered with Holcim Inc. and Castle Rock Concrete Construction Company to create a sustainable concrete pavement solution using Class F Fly Ash.
