Mankato, Minnesota: water and wastewater capital improvement projects
28 line items · $104M · starting 2026–2028 · 1 plan
Mankato's published capital plans list 28 water, sewer and wastewater line items with a combined planning budget of $104M, of which 13 items worth $100M sit in the wastewater and sewer departments. The largest single item is Disinfection and Digestion Upgrade at $80M (2025–2026). The ten largest items are listed below; the full list with descriptions and page references is in Klarifi.
A capital improvement plan (CIP) is a city’s multi-year budget for building and replacing infrastructure. The water, sewer and wastewater sections list each project with its budget and the years it is funded, which makes them the earliest public signal that a plant, pump station or pipe network is about to be upgraded, usually two to four years before a contract is awarded.
The largest water and sewer projects in Mankato
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Disinfection and Digestion Upgrade | Wastewater | Anaerobic digesters and biogas | $80M | 2025–2026 |
| 2 | 2025 - Regional trunk line - engineering work / construction 3rd ave | Wastewater | Force mains and interceptors | $8M | 2026–2029 |
| 3 | Infra - Mulberry Liftstation Upgrade | Wastewater | Lift stations | $4M | 2025–2026 |
| 4 | 2028 - Blower Replacement with turbo blowers | Wastewater | Aeration and blowers | $4M | 2025–2028 |
| 5 | Balcerzak Tower Rehab | Water Supply | Headworks, screening and grit | $2M | 2025–2026 |
| 6 | Facility Roof Replacement - med | Wastewater | Buildings, HVAC and site work | $796K | 2025–2029 |
| 7 | Sand removal system - WRF - Med | Wastewater | Wastewater treatment plant upgrades | $728K | 2026 |
| 8 | North City Reservoir Booster install | Water Supply | Storage tanks and reservoirs | $650K | 2026 |
| 9 | Membrane Filter Replacement | Water Supply | Membranes and filtration | $575K | 2028 |
| 10 | 20 Year Facility plan - high | Wastewater | Anaerobic digesters and biogas | $500K | 2026 |
18 more line items in Mankato, with descriptions and contacts
Klarifi holds every Mankato line item with its description, the page it appears on and the source document. Track new plans as they are adopted and compare with similar projects in other cities.
Planned spend by start year
Before 2026
$92M
13 items
2026
$11M
8 items
2027
$545K
3 items
2028
$915K
4 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 13 | $100M | 95% |
| Water Supply | 13 | $4M | 4% |
| Water Distribution | 2 | $630K | 1% |
Project types in Mankato's plan
Wastewater treatment plants in Mankato
No publicly owned treatment plant is recorded under Mankato in the facility directory; the city may be served by a regional plant listed under another municipality. Browse all plants in Minnesota.
Other Minnesota cities with capital plans
Mankato capital plan questions
Sources and methodology
Budgets and years are as published in Mankato’s capital improvement plan or adopted budget. Klarifi extracts the water, sewer and wastewater line items from the published document, keeps the page reference for each one, and assigns a project type from the title and description with a keyword classifier. Figures are planning budgets, not awarded contracts, and can change when a plan is re-adopted.
Documents: CIP 2025–2029 (28 line items).
Data refreshed September 11, 2026.