I-94 Dayton Parkway Interchange Design in Dayton, MN

SRF was selected by the City of Dayton to design a new access interchange on I-94. To kick off the project, SRF evaluated several interchange concepts and prepared concept design plans for the most promising options. Working closely with key stakeholders, including the Cities of Dayton and Rogers, Hennepin County, MnDOT, BNSF Railway, MPCA, MnDNR, and USACE, SRF finalized a diverging diamond interchange (DDI) configuration. This design efficiently serves the area’s traffic patterns while minimizing impacts to adjacent property owners.

As part of the preliminary design phase, SRF completed environmental documentation and helped secure federal and Local Road Improvement Program (LRIP) funding to support project development.

To analyze construction limits and compute earthwork quantities, SRF prepared corridor modeling using Geopak and developed final design plans with MicroStation SS-4.

In addition to roadway design, SRF created traffic signals and ITS design plans. This included a unique traffic signal system where MnDOT used a single controller for two DDI crossover intersection signals. An ATC signal cabinet was implemented to handle all required detection inputs and phase and overlap outputs, ensuring seamless traffic management.

Other notable aspects of the project included bridge surcharging with wick drains, floodplain mitigation, billboard relocation, and the use of combined jurisdiction water resource Best Management Practices (BMPs) to address stormwater management and sustainability goals.

Through collaboration and innovative engineering solutions, SRF delivered a project that enhances regional connectivity, supports economic development, and improves traffic safety along the I-94 corridor.

Resource links:
City of Dayton
Dayton Interchange Recycling Update
MnDOT I-94 Maple Grove to Rogers
BNSF Railway

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Minneapolis, MN