I-70 Exit 105 New Castle Interchange Design

As a follow-up to a study Stolfus performed in 2015, CDOT identified the need to improve the I-70 Exit 105 Interchange at New Castle.  The current contract calls for a 30% design (Shelf Level 3), including the 2040 Roundabout Interchange alternative, which consists of three two-lane roundabouts at the eastbound and westbound ramps and the US 6 / Castle Valley Boulevard intersection.

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