Interstate 90 - Exit 406 (Brandon)
Project Summary:
This project includes the reconstruction of exit 406 (Brandon) with added lighting, signals, and mainline Interstate work. This project also includes three structure replacements.
- The interchange will be reconstructed as a diverging diamond configuration.
- Westbound Interstate 90 lanes (along with the railroad structure on I90) will be reconstructed in 2024 and the eastbound lanes (and railroad structure in 2025). The interchange itself and new structure over I90 will be reconstructed between 2024 and 2025.
- S.D. Highway 11 traffic will be maintained across Interstate 90 during construction.
- The westbound on-ramp and eastbound off-ramp are expected to be open to traffic for the majority of the project. Closures for the westbound off-ramp and eastbound on-ramp are planned for 2025.
- Work will extend on S.D. Highway 11 down to Redwood Boulevard. That work includes adding a shared use path on the west side, approach and side street work, a retaining wall on the east side north of Ash St, and other items.
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Project Timeline:
Spring 2024 - Overall Completion Date: June 19, 2026
Minor clean-up work to be completed in 2026
Project Updates:
April 15, 2024:
March 15, 2024 – April 15, 2024, Completed Work: The project started on Thursday, March 28, 2024. Traffic control was in place on April 5. Removals have begun on Interstate 90 and S.D. Highway 11 and will continue for a few weeks as portions of new grade have been started in areas that have minimal impact to traffic. Pavement removal began on the southbound lanes of Highway 11. Work on the storm sewer on Express Avenue is under way and nearing completion.
Anticipated work in April 15, 2024 – May 15, 2024: Grading work along the westbound on ramp will continue as well as pavement removal on I-90. Express Avenue grading will continue, and gravel will begin immediately after the grading. On Highway 11 storm sewer will be placed along the west side and grading will begin as storm sewer is completed.
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March 27, 2024 - Press Release:
On Monday, April 1, 2024, two-way traffic will begin on the eastbound lanes of Interstate 90 between mile markers 405 and 407 as part of the exit 406 reconstruction project in Brandon. The speed limit will be reduced to 65 mph and a 12-foot width restriction will be in place. On Tuesday, April 2, 2024, traffic on S.D. Highway 11, starting at Redwood Boulevard north to exit 406, will be reduced to two-way traffic. Access to local businesses will be maintained during grading and paving operations.
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March 26, 2024 - Dakota News Now:
Watch the full story here
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March 18, 2024 - Press Release: Informational Meeting Planned for Interstate 90 (Exit 406) Reconstruction Project in Brandon
The South Dakota Department of Transportation (SDDOT) will hold a pre-construction informational meeting to share details about the Interstate 90 exit 406 reconstruction project in Brandon. This project will replace the existing interchange with a Diverging Diamond Interchange (DDI). The informational meeting is scheduled from 5-7 p.m. on Wednesday, March 27, 2024, at the Brandon Golf Course, located at 2100 E. Aspen Blvd. in Brandon. Representatives from SDDOT and the contracting firm will be available to answer questions and discuss the project. Information will be provided on the project schedule and process.
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March 1, 2024 - Press Release:
Starting Monday, March 4, 2024, westbound and eastbound lane closures are planned on Interstate 90 near Brandon, exit 406. Lane closures, which will be placed as road conditions allow, are scheduled to be in effect from Monday, March 4, 2024, through Friday, March 22, 2024.
Informational Meeting Resources (PDFs):
Interstate 90 Layout
S.D. Highway 11 Layout
DDI Layout
Phasing Year One
Phasing Year Two
Project Photos:
Project Contract Amount:
$41.3 Million
Project Contacts:
SDDOT:
Michael Noonan
605-940-1237
Contractor:
T&R Contracting, Inc. of Sioux Falls, S.D.