Active Projects

The categories below detail some of the City of Manhattan projects that may have a significant impact on traffic in Manhattan in the coming weeks and months. You can also sign up to receive email updates on major construction projects.

Find updates for other projects at:

Traffic Impacts


  • Manhattan Street Maintenance Phase 2: Concrete streets - road work is ongoing in the areas below and will include removal and replacement of concrete street panels. Expect significant traffic impacts during construction. These projects are funded by the street maintenance sales tax fund.
    • Oak Street: Work should be completed by mid-August 2018 before classes begin at Manhattan High School. Eastbound through traffic will be allowed during construction. Westbound traffic is routed to Summit Drive, then Walnut. 
    • Griffith Drive: Work will begin July 18 and should be finished by the end of August.
  • Allen Road Sanitary Sewer and Water Line Replacement: * Work will be completed and the roadway reopened by the end of the day Friday, July 20, 2018. 
  • Marlatt & Denison: Marlatt Avenue will be closed from Tuttle Creek Blvd. to Denison, and Denison will be closed from Marlatt to MFD Headquarters Fire Station until November 2018. Riley County is managing the project. 
  • South Delaware Stormwater Improvements: Local closures for completion of the work will begin spring of 2018 and continue through the end of the year. Local traffic will be permitted.
  • Gary Avenue Roundabout: Starting Monday, July 2, 2018 the roundabout at Gary Ave. and Candlewood Dr. will be closed for street repairs. Work is expected to be completed by August 1. Local residents will continue to have driveway access during the project but no through traffic will be allowed.
  • CIPP Projects:  

    This week crews will be working intermittently on Anderson from Sycamore to Connecticut requiring temporary lane closures. Lanes will be reopened at the end of each work day.

  • Safe Routes to School Phase II: This is a grant funded project to increase pedestrian and bike access to the elementary schools. Phase II includes the installation of sidewalks and pedestrian beacons at Casement & Griffith, as well as sidewalks along S. 14th Street, Wreath Avenue, and College Heights & Lee St. 
  • Old Blue River Phase V: Beginning June 4, 2018, KDOT will be replacing the current open drainage ditch along Tuttle Creek Blvd with an enclosed concrete box. When construction is complete, a paved trail and pedestrian crossing will be installed linking the Old Blue River Trail. Work is expected to be complete in the fall of 2018.

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Park/Trail Projects


  The Manhattan Parks & Recreation currently has the following park projects under design or construction: