Minnesota Department of Transportation

511 Travel Info

Highway 3

Rosemount, Eagan and Inver Grove Heights

Design concepts

Highway 3 from 160th Street/County Road 46 in Rosemount to Highway 62 in Inver Grove Heights showing five different study segments.

Segment map showing five study areas
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We are looking at several ideas for possible improvements along Hwy 3. Community feedback and technical analysis will help guide future decisions.
For this study, the highway corridor was split into five segments to review different design options.

Potential improvements by segment

View the potential improvements for each segment of the project area in the drop-downs below.

Segment 1: Co. Rd. 46 to Co. Rd. 42


Existing: Two-lane road with right turn lanes
Concerns: Traffic capacity and safety

Concept 1: Three-lane road with turn lanes
Benefits:
Adds traffic capacity, increases safety, and improves access

Concept 2: Four-lane divided road
Benefits: Greatest traffic capacity, increases safety, restricts access, highest cost.

Potential intersection improvements:
  • Four-lane road with turn-lanes at the Hwy 3 and 160th St./ Co. Rd. 46 intersection with a traffic signal or roundabout
  • Potential new connection between 150th St./Co. Rd. 42 and Hwy 3 south of the existing intersection with a traffic signal or a roundabout

Segment 1 existing

Segment 1: Existing

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Segment 1 concept 1

Segment 1: Concept 1

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Segment 1 concept 2

Segment 1: Concept 2

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Segment 2: Co. Rd. 42 to Connemara Trail


Existing: Two-lane road with two-way left turn
Concerns: Safety

Concept 1: Two-lane divided road
Benefits:
Improves safety, pedestrian accessibility, maintains capacity and restricts access

Concept 2: Two southbound lanes, one northbound lane, with two-way left turn lane
Benefits: Improves safety, increases vehicle capacity

Potential intersection improvements:
  • Converts intersections to mini roundabouts at 143rd St., 145th St.. 147th St. and Rosemount Crossing

Image example 1

Segment 2: Existing

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Segment 2 concept 1

Segment 2: Concept 1

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Segment 2: Concept 2

Segment 2: Concept 2

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Segment 3: Connemara Trail to Hwy 149

Existing: Two-lane road with right turn lane
Concerns: Capacity and safety

Concept 1: Three-lane road with right turn lanes
Benefits:
Increases vehicle capacity, improves safety, and improves access

Concept 2: Two southbound lanes, one northbound lane and two-way left turn lane
Benefits: Increases vehicle capacity, improves safety, improves access and has wetland impacts

Concept 3: Four-lane divided road
Benefits: Increases vehicle capacity, improves safety, restricts access, has wetland impacts and a high cost

Potential intersection improvements:
  • Roundabout at Diffley Rd (Co. Rd. 30)
  • Roundabout or Signal at Cliff Rd. (co. R. 32)
  • Realign 120th St. to connect with Biscayne Ave. at Hwy 3 and restrict left turn movements at the intersection
  • Roundabout at Bonaire Path
  • Roundabout at Connemara Trail
  • Realignment of Hwy to the east of the railroad bridge with a roundabout or signal at the Hwy 3/Hwy 149 Intersection.

Segment 3: Segment 3 existing

Segment 3: Existing

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Segment 3 concept 1

Segment 3: Concept 1

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Segment 3: Concept 2

Segment 3: Concept 2

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Segment 3 concept 3

Segment 3: Concept 3

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Segment 4: Hwy 149 to Hwy 55

Existing: Two-lane road
Concerns: Safety, bike and pedestrian access

Concept 1: Two-lane road with adjacent trail
Benefits:
Improves pedestrian safety, has wetland impacts and high cost

Concept 2: Three-lane road with two way left turn lane
Benefits: Improves safety, improves access and has wetland impacts

Concept 3: Three-lane road with two-way left turn lane and adjacent trail
Benefits: Improves safety, access and pedestrian safety, has wetland impacts and a high cost

Potential intersection improvements:
  • Double roundabout at Rich Valley Rd. (Co. Rd. 71)
  • Realign 80th St./Co. Rd. 28 to the north

Segment 4: Existing

Segment 4: Existing

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Segment 4: Concept 1

Segment 4: Concept 1

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Segment 4: Concept 2

Segment 4: Concept 2

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Segment 4: Concept 3

Segment 4: Concept 3

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Segment 5: Hwy 55 to Hwy 62

Existing: Two-lane road with right-turn lanes
Concerns: Capacity and safety

Concept 1: Two-lane road with two-way left turn lane and adjacent trail
Benefits:
Improves safety, access and pedestrian accessibility

Concept 2: Two-lane divided road
Benefits: Improves safety and pedestrian accessibility, restricts access and has wetland impacts

Concept 3: Four-lane divided road
Benefits: Increases capacity, improves safety, pedestrian accessibility, has wetland impacts and high cost

Potential intersection improvements:
  • Roundabouts at 65th St., Upper 55th St. and Salem Church Rd.
  • Roundabout at the Hwy 3/Hwy 55 interchange
  • Improve connections from Courthouse Blvd to the Hwy 3 and Hwy 55 interchange

Segment 5: Existing

Segment 5: Existing

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Segment 5: Concept 1

Segment 5: Concept 1

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Segment 5: Concept 2

Segment 5: Concept 2

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Segment 5: Concept 3

Segment 5: Concept 3

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