Sussex, Wisconsin: water and wastewater capital improvement projects
9 line items · $21M · starting 2026–2030 · 1 plan
Sussex's published capital plans list 9 water, sewer and wastewater line items with a combined planning budget of $21M. The largest single item is Well 6&7 treatment plant upgrade at $5M (2028). 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 Sussex
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Well 6&7 treatment plant upgrade | Water Supply | Wastewater treatment plant upgrades | $5M | 2028 |
| 2 | Spring Green, Pembrooke, Crestview & Parkview Road Improvements | Water Distribution | Sewer rehabilitation and I&I | $3M | 2027 |
| 3 | Eagles Ridge (Mill/Overlay) 5 miles | Water Distribution | Sewer rehabilitation and I&I | $3M | 2026 |
| 4 | Woodland Creek/Centennial Oaks Road Improvements | Water Distribution | Sewer rehabilitation and I&I | $3M | 2029 |
| 5 | Arterial Street Improvements | Water Distribution | Sewer rehabilitation and I&I | $2M | 2030 |
| 6 | Ammonia Treatment @ Well 5 | Water Supply | Nutrient removal | $2M | 2030 |
| 7 | Old Mill & Stonefield Road Improvements | Water Distribution | Sewer rehabilitation and I&I | $2M | 2030 |
| 8 | WWTF Repairs (Roof + Well 5, valves, aeration, gravity, sprinkler, repave) | Water Supply | Aeration and blowers | $1M | 2025 |
| 9 | West Industrial Park Road Improvements | Water Distribution | Sewer rehabilitation and I&I | $750K | 2028 |
Descriptions, page references and contacts for Sussex
Klarifi holds every Sussex line item with its description, the page it appears on and the source document, plus 1 verified contact 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
$1M
1 items
2026
$3M
1 items
2027
$3M
1 items
2028
$6M
2 items
2029
$3M
1 items
2030
$5M
3 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Water Supply | 3 | $8M | 38% |
| Water Distribution | 6 | $13M | 62% |
Project types in Sussex's plan
Wastewater treatment plants in Sussex
1 publicly owned treatment plant in Sussex with 3 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| Sussex Wastewater Treatment Facility | 2.57 | WI0020559 | 3 |
Other Wisconsin cities with capital plans
Sussex capital plan questions
Sources and methodology
Budgets and years are as published in Sussex’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 2021–2030 (9 line items).
Data refreshed September 11, 2026.