E‑470 details planned interchanges, ramps and widening projects

E‑470 staff summarized a multi‑year capital program that will widen segments and complete planned interchanges where development has created demand. Donahue said the authority expects full interchanges at I‑70 and I‑76 within the next decade, is expanding the Washington Street Bridge in Thornton, and is partnering with local jurisdictions on projects such as the Gartrell interchange in Aurora and a Parker Road ramp improvement.

Funding arrangements vary by project, Donahue said: E‑470 typically shares costs with developers or cities; he gave Gartrell as an example where the authority is covering roughly 25–30% of the ramp/bridge work and described a separate split for a recent Sable interchange where E‑470 paid two‑thirds of that project with Adams County and Brighton covering the rest.