4th Street Improvement Project
Proposed Improvements
The City of Willmar is planning to improve 4th Street SW in 2026. Design is currently underway, with construction anticipated to begin in May. Improvements include:
- Street diet
- The proposed street diet involves reducing the existing roadway width from approximately 52 feet to a consistent width of 38 feet. This modification will continue to accommodate on-street parking on both sides and providing cost savings for the city and adjacent property owners—both in terms of initial project expenses and long-term maintenance.
- Asphalt streets with concrete curb and gutter
- Sidewalks improvements
- Concrete driveway aprons
- Sanitary sewer system
- Water main, hydrants and water services
- Storm sewer system
Project Area Map
Project Schedule
- Open house October 1st, 2025
- Public hearing October 6th, 2025
- Open house December 18th, 2025
- Contractor will be selected in April 2026
- Construction June – November 2026
- Final assessment hearing in August 2026
Construction Update – June 29, 2026
The Contractor’s anticipated schedule for construction is provided below. As always, this schedule is subject to change based on weather conditions.
Phase 1: Willmar Avenue to Robbins Avenue
- Tree removals — Complete
- Install temporary water service — Week of July 6th
- Street reclamation / removals — Week of July 6th
- Underground utility installation — Week of July 13th
- Street base construction – late July
- Concrete curb, sidewalk, and driveways — mid August
- Install bottom course of asphalt pavement — late August
- Topsoil and turf establishment — early September
- Install top course of asphalt pavement — Spring 2027
Phase 2: Robbins Avenue to Kandiyohi Avenue
- Tree removals — Complete
- Install temporary water service — early August
- Street reclamation / Removals — early August
- Underground utility Installation — mid August
- Street base construction — early September
- Concrete curb, sidewalk, & driveways — mid September
- Install bottom course of asphalt pavement — late September
- Topsoil and turf establishment — early October
- Install top course of asphalt pavement — Spring 2027
Phase 3: Kandiyohi Avenue to Trott Avenue
- Tree removals — Complete
- Install temporary water service — early September
- Street reclamation / removals — early September
- Underground utility installation — mid September
- Street base construction — mid October
- Concrete curb, sidewalk, & driveways — late October
- Install bottom course of asphalt pavement — early November
- Topsoil and turf establishment — mid November
- Install top course of asphalt pavement — Spring 2027
We appreciate your patience and understanding as we work to improve your streets and utilities!
Engineer Contact
Spencer Johnson
Project Manager, Bolton & Menk, Inc.
(320)-979-6136
[email protected]
Nate Thein
Resident Project Representative, Bolton & Menk, Inc.
(320) 979-9070
[email protected]