Madison, Wisconsin: water and wastewater capital improvement projects
26 line items · $160M · starting 2027–2030 · 1 plan
Madison's published capital plans list 26 water, sewer and wastewater line items with a combined planning budget of $160M, of which 8 items worth $24M sit in the wastewater and sewer departments. The largest single item is Water Mains Replacement at $80M (2023–2025). 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 Madison
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Water Mains Replacement | Water Distribution | Water mains and distribution | $80M | 2023–2025 |
| 2 | Water Utility Facility Improvements | Water Distribution | SCADA, controls and instrumentation | $15M | 2023–2025 |
| 3 | Trenchless Sewer Rehabilitation | Sewer | Sewer rehabilitation and I&I | $12M | 2025–2030 |
| 4 | Water Utility Vehicles & Equipment | Water Distribution | Vehicles and equipment | $7M | 2023–2025 |
| 5 | Well 27 Iron & Manganese Mitigation | Water Distribution | Wells and groundwater | $7M | 2027–2028 |
| 6 | Unit Well 12 Conversion to a Two Zone Well | Water Distribution | Wells and groundwater | $5M | 2025–2026 |
| 7 | Sewer Reconstruction | Sewer | Sewer rehabilitation and I&I | $4M | 2025–2030 |
| 8 | Lift Station & Force Main Rehabilitation and Replacement | Sewer | Lift stations | $4M | 2025–2030 |
| 9 | Water Meter and Fixed Network Program | Water Distribution | Meters and AMI | $4M | 2023–2025 |
| 10 | High Point/Raymond/MidTown | Water Distribution | Stormwater and flood resilience | $3M | 2025–2030 |
16 more line items in Madison, with descriptions and contacts
Klarifi holds every Madison line item with its description, the page it appears on and the source document, plus 4 verified contacts at the city’s treatment plants. Track new plans as they are adopted and compare with similar projects in other cities.
Planned spend by start year
Before 2026
$148M
21 items
2027
$8M
2 items
2029
$4M
2 items
2030
$1M
1 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Sewer | 8 | $24M | 15% |
| Water Distribution | 18 | $137M | 85% |
Project types in Madison's plan
Wastewater treatment plants in Madison
1 publicly owned treatment plant in Madison with 2 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| EPA Superfund Site: Madison Metropolitan Sewerage District Lagoons | 39.37 | WIG009756 | 2 |
Other Wisconsin cities with capital plans
Madison capital plan questions
Sources and methodology
Budgets and years are as published in Madison’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: Adopted Budget 2025 (26 line items).
Data refreshed October 5, 2026.
Wastewater terms: Lift station · Inflow and infiltration · Sludge dewatering · WWTP · Equalization tank · Centrate · all terms