Welcome to our Infrastructure Projects Page!


Please see below for summaries of projects currently ongoing in our community. This list is not all inclusive and summarizing often complex and detailed engineering projects can be challenging. So please, please engage staff with any questions, comments, and concerns. We would love to discuss with you!

This page was last updated on November 4, 2019

Low Impact Design Pilot Project (11/4/19)

We are conducting a test project for low impact design of streets and storm water. The project is planned to be constructed along Willow St near Prairie Ave in the spring of 2020.

Wastewater Treatment Facility (9/17/19)

We are in the process of building our own wastewater treatment facility. The project is currently at 60% design phase and we are scheduled to break ground in early 2020 with construction occurring until spring of 2021. Facility start up will occur during the summer of 2021. Our wastewater ponds 1 and 2 will be decommissioned after that and pond 3 will then only be used during high flows and emergencies.

Columbia St Extension (11/4/19)

Columbia St will be extended from Foundation Dr to the northern end of Devitt development. Design is finishing up and we plan to construct next year.

Willow St Sidewalk (9/17/19)

A sidewalk along the north side of Willow St from Liberty Elementary to the High School will be constructed in the summer of 2020. 

Willow St Railroad Crossing (9/17/19)

The DOT is planning to improve the railroad crossing on Willow in 2020. The crossing arms are planned to be updated and sidewalk replaced and installed on the south side in 2021.

Westside Trunk Sewer (9/17/2019)

A trunk sewer from Minnesota Ave to Louise Ave is currently in design. This sewer will accommodate the new west side school as well as development along its route. The tentative schedule for construction is 2020.

Central Park Grading (11/4/19)

Phase 2 of grading Central Park (the area north of Liberty Elementary) is scheduled to be completed in the summer of 2021.

Cliff Ave and Willow St Intersection (11/4/19)

This intersection is owned jointly by the Harrisburg and Lincoln County. Lincoln County is conducting a Transportation Master Plan which is expected to be completed this winter. The City is conducting a preliminary design of the intersection to be finalized in the spring.

East Side Drainage Study (9/17/19)

We are studying the drainage basin north of Willow St and east of the railroad which includes the Legendary Estates stormwater outlet and N Southeastern Ave. Once this is complete, we can then determine drainage solutions for the the southeast area of town including the Willow St ditch, Perry Ave, and Anna Way.

Arterial Street Funding Study (9/17/19)

An arterial street funding study for our city is underway. This is vital step in the complex process of determining how to pay for our arterial streets. We expect to complete this by December 2019.

Pedestrian/ADA Plan (9/17/19)

We are in the process of developing a pedestrian and ADA improvement plan in Harrisburg. We are currently gathering data of our current sidewalk system. We hope to have a draft plan to city boards early in 2020.

Parks Master Plan (9/17/19)

We are in the early stages of developing a master plan for current and future parks facilities. We hope to bring information to city boards in early 2020.

Projects of Interest by Others

Lincoln County Master Transportation Plan (Lincoln County, SDDOT, & MPO) (11/4/19)

Lincoln County, SDDOT, and Sioux Falls Metropolitan Planning Organization are currently studying the county road system to prioritize improvements in response to the rapid growth. This report is expected to be completed this winter. The information from their study of their roads will assist Harrisburg immensely in our future transportation planning of our roads.

Lincoln County Master Drainage Plan (11/4/19)

The county is conducting a drainage planning study, primarily in northern Lincoln County. This is ongoing and will extend into 2020.

Highway 115 Reconstruction (SDDOT) (9/17/19)

This is a two year project. In 2019 Highway 115 (Minnesota Ave) from Willow St to Cardinal Pl (just south of 271st St) will be reconstructed. In 2020, reconstruction will occur from Cardinal Pl to 85th St.