E‑470 details planned interchanges, ramps and widening projects

Sep 21, 2026

E‑470 told the county it is accelerating a capital program that includes interchange work at I‑70 and I‑76, the Gartrell interchange, Sable and ramp improvements near Parker Road, with funding splits typically shared with local jurisdictions and developers.

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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.

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