41st Street Diverging Diamond Interchange

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Submit comments and questions to the project team using this form or call our hotline at: 605-8847189.

Phase 1 Construction includes installing sanitary sewer lines, water mains, and storm drainage. This work will include grading, temporary gravel/driveway access, concrete paving, other miscellaneous concrete work, and restoration.

Traffic Alerts

Updated June 28, 2022

41st Street, Marion Road to I-29

  • Paving on Marion Road between 41st Street and 44th Street is complete and reopened to traffic.
  • Paving on 41st street began the week of June 20 starting at Marion Road and working toward the east. Intermittent intersection closures will continue as paving progresses.
    • The south side of the intersection at 41st Street and Cathy Avenue is reopened. The intersection was previously closed for paving operations.
    • The south side of the intersection at 41st Street and Terry Avenue is reopened.
    • The south side of the intersection at 41st Street and Gateway Boulevard is closed June 27 through July 1 for paving operations.
  • Asphalt and concrete paving on Marion Road South of 41st Street is completed.
  • Crews completed grading on 41st Street east of Terry Avenue.
  • In July and August, lane closures will go into effect on I-29 with two lanes of traffic remaining open. Crews will begin storm drainage work along I-29 with bridge improvements on the I-29 overpass.

Commuter Route Information

  • On Wednesday, July 6, 2022, two-way traffic on 41st Street between Marion Road and Terry Avenue will be shifted to the newly-paved lanes on the south side of 41st Street for roadway removals. One-lane traffic will remain open in each direction on the south side of 41st Street. Left turn lanes will remain open at the intersections of 41st Street and Terry Avenue and 41st Street and Marion Road.
  • Marion Road between 41st Street and 39th Street will be reduced to three lanes from Wednesday, July 6, 2022 through Monday July, 11, 2022 in preparation for road reconstruction.
  • Marion Road will be closed beginning Monday, July 11, 2022 to traffic between 41st Street and 39th Street for approximately two months for road reconstruction. Drivers are urged to use caution and reduce their speed while traveling through the construction area and consider using alternate routes Sertoma Avenue and 26th Street.
  • Motorists should drive through the Marion Road intersection slowly due to the grade change. Use extreme caution when driving through the intersection.
  • The outside right turn lane on the southbound Interstate 29 off-ramp onto 41st Street is closed.
  • Temporary closures at Gateway Boulevard, Terry Avenue and Cathy Avenue will alternate so that at least one intersection is open at all times.
  • Please follow the posted signs around the closures.
View the Full Schedule
  • Spring 2022 - Reconstruction of the south side of 41st Street starts at Meadow Avenue and progresses to the west.
  • Spring 2022 - Marion Road will be closed south of 41st Street for one month. The detour uses Sertoma Avenue and 57th Street.
  • Summer 2022 - Reconstruction of the north side of 41st Street starts at Meadow Avenue and progresses to the west.
  • Fall 2022 - Marion Road will be closed north of 41st Street for one month. The detour uses Sertoma Avenue and 26th Street.
  • Time frames are all approximate, subject to change, and weather and schedule permitting.

For the latest on road and weather conditions, road closures, construction work zones, commercial vehicle restrictions, and traffic incidents, visit sd511.org or dial 511.

Marion Road Closures & Detours

2022 Spring to Fall

  • Spring 2022 - Reconstruction of the south side of 41st Street starts at Meadow Avenue and progresses to the west.
  • Spring 2022 - Marion Road will be closed south of 41st Street for one month. The detour uses Sertoma Avenue and 57th Street.
  • Summer 2022 - Reconstruction of the north side of 41st Street starts at Meadow Avenue and progresses to the west.
  • Fall 2022 - Marion Road will be closed north of 41st Street for one month. The detour uses Sertoma Avenue and 26th Street.
  • Time frames are all approximate, subject to change, and weather and schedule permitting.

While Marion Road is closed, business access will be open along Larch Avenue and 44th Street.

Pedestrian Routes

2022 Spring to Summer

2022 Summer to Fall

Construction Progress

Construction began in early 2022 and is anticipated to be completed in summer 2024. The project is divided into two phases: west and east. The west half of the project area includes 41st Street from Marion Road to Meadow Avenue. The east half includes 41st Street from Meadow Avenue to Shirley Avenue.

Click or tap on the dots to see more detail about a particular area.

Project overview map ? South Side of 41st Street West of I-29 (2022)

South Side of 41st Street West of I-29 (2022)

Construction progresses on the south side of 41st Street west of I-29.

  • Removals

    In Progress
    Completed
  • Sanitary Sewer

    In Progress
    Completed
  • Water Main

    In Progress
    Completed
  • Drainage

    In Progress
    Completed
  • Grading

    In Progress
    Completed
  • Gravel

    In Progress
    Completed
  • Concrete Paving

    In Progress
    Completed
  • Misc Concrete

    In Progress
    Completed
  • Restoration

    In Progress
    Completed
? Marion Road South of 41st Street (2022)

Marion Road South of 41st Street (2022)

Construction progresses on Marion Road south of 41st Street.

  • Removals

    In Progress
    Completed
  • Sanitary Sewer

    In Progress
    Completed
  • Water Main

    In Progress
    Completed
  • Drainage

    In Progress
    Completed
  • Grading

    In Progress
    Completed
  • Gravel

    In Progress
    Completed
  • Concrete Paving

    In Progress
    Completed
  • Misc Concrete

    In Progress
    Completed
  • Restoration

    In Progress
    Completed
? North Side of 41st Street West of I-29 (2022)

North Side of 41st Street West of I-29 (2022)

Construction has not started on the north side of 41st Street west of I-29.

  • Removals

    In Progress
    Completed
  • Sanitary Sewer

    In Progress
    Completed
  • Water Main

    In Progress
    Completed
  • Drainage

    In Progress
    Completed
  • Grading

    In Progress
    Completed
  • Gravel

    In Progress
    Completed
  • Concrete Paving

    In Progress
    Completed
  • Misc Concrete

    In Progress
    Completed
  • Restoration

    In Progress
    Completed
? Marion Road North of 41st Street (2022)

Marion Road North of 41st Street (2022)

Construction has not started on Marion Road north of 41st Street.

  • Removals

    In Progress
    Completed
  • Sanitary Sewer

    In Progress
    Completed
  • Water Main

    In Progress
    Completed
  • Drainage

    In Progress
    Completed
  • Grading

    In Progress
    Completed
  • Gravel

    In Progress
    Completed
  • Concrete Paving

    In Progress
    Completed
  • Misc Concrete

    In Progress
    Completed
  • Restoration

    In Progress
    Completed
? I-29 Interchange Work (2022-2023)

I-29 Interchange Work (2022-2023)

Construction has not started on the new interchange.

  • Removals

    In Progress
    Completed
  • Sanitary Sewer

    In Progress
    Completed
  • Water Main

    In Progress
    Completed
  • Drainage

    In Progress
    Completed
  • Grading

    In Progress
    Completed
  • Gravel

    In Progress
    Completed
  • Concrete Paving

    In Progress
    Completed
  • Misc Concrete

    In Progress
    Completed
  • Restoration

    In Progress
    Completed
? South Side of 41st Street East of I-29 (2023)

South Side of 41st Street East of I-29 (2023)

Construction has not started on the south side of 41st Street east of I-29.

  • Removals

    In Progress
    Completed
  • Sanitary Sewer

    In Progress
    Completed
  • Water Main

    In Progress
    Completed
  • Drainage

    In Progress
    Completed
  • Grading

    In Progress
    Completed
  • Gravel

    In Progress
    Completed
  • Concrete Paving

    In Progress
    Completed
  • Misc Concrete

    In Progress
    Completed
  • Restoration

    In Progress
    Completed
? North Side of 41st Street East of I-29 (2023)

North Side of 41st Street East of I-29 (2023)

Construction has not started on the north side of 41st Street east of I-29.

  • Removals

    In Progress
    Completed
  • Sanitary Sewer

    In Progress
    Completed
  • Water Main

    In Progress
    Completed
  • Drainage

    In Progress
    Completed
  • Grading

    In Progress
    Completed
  • Gravel

    In Progress
    Completed
  • Concrete Paving

    In Progress
    Completed
  • Misc Concrete

    In Progress
    Completed
  • Restoration

    In Progress
    Completed
  • April - November 2022

    41st Street construction from Marion Road to Meadow Avenue (west half of project area)

  • April - November 2023

    41st Street construction from Meadow Avenue to Shirley Avenue (east half of project area)

  • April - June 2024

    Finishing touches and clean-up; complete construction