Dakota County is working with the cities of Apple Valley and Rosemount to construct a single lane roundabout at the intersection of County Road 33 (Diamond Path) and 140th Street/Connemara Trail.
A feasibility study was conducted to review traffic and safety issues at the intersection of County Road 33 (Diamond Path) and 140th Street/Connemara Trail.
The feasibility study reviewed existing and future traffic operations and developed design alternatives for the intersection. The study recommended construction of a single lane roundabout based on safety, future traffic and the neighborhood setting. For more information about the study, visit the
County Road 33 Roundabout Feasibility Study page.
The project components include:
- Constructing a single lane roundabout at 140th Street/ Connemara Trail and County Road 33 (Diamond Path) intersection
- Restriping 140th Street in Apple Valley between County Road 31 (Pilot Knob Road) to Diamond Path from an undivided 4-lane to 3-lane roadway (center left turn lane)
- Restriping from an undivided 4-lane to 2-lane with turn lanes on Diamond Path between 145th Street and 140th Street/Connemara Trail
- Preserving pavement on Diamond Path between County Road 42 (150th Street) and 140th Street/Connemara Trail
Tentative project timeline
Fall 2021-2022: Final Design
Spring 2022: Public information meeting #1
Spring 2022-2023: Right of way acquisition
Summer 2023: Construction
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