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Our Work

TH 22 Roundabouts

TKDA improved the safety and usability of a major stretch of road for vehicle and pedestrian traffic

When the City of Mankato was experiencing traffic flow and safety issues at a major intersection, MnDOT contracted with TKDA to complete an Intersection Control Evaluation/Traffic Study for the TH 22 corridor. TKDA’s in-depth analysis determined that the roundabouts were the best option to improve traffic flow and safety on TH 22.

Following the analysis MnDOT contracted with TKDA to complete the layout and final design of the recommended roundabouts. The project included the construction of two multi-lane roundabouts, the reconstruction of 0.5 mile of TH 22, concrete pavement rehabilitation, revised traffic signals and additional ADA ramps at 10 intersections. Through public outreach, TKDA educated the public about roundabouts and kept local citizens and businesses informed.

Client
Minnesota Department of Transportation
Location
Mankato, Minnesota
Services Provided

Traffic Management
Intersection Control Evaluation
Preliminary and Final Roundabout Design
Public Outreach

Markets
Highway
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