Watertown, New York: water and wastewater capital improvement projects
112 line items · $76M · starting 2026–2030 · 1 plan
Watertown's published capital plans list 112 water, sewer and wastewater line items with a combined planning budget of $76M, of which 67 items worth $50M sit in the wastewater and sewer departments. The largest single item is West Reservoir Replacement at $7M (2026–2027). 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 Watertown
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | West Reservoir Replacement | Water Supply | Storage tanks and reservoirs | $7M | 2026–2027 |
| 2 | Sludge Disposal Process Modification Program Phase IA – (Conveyor Upgrade and HVAC) | Sewer | Biosolids, sludge and dewatering | $6M | 2025–2050 |
| 3 | Western Outfall Trunk Sewer Rehab | Sewer | Force mains and interceptors | $4M | 2026–2045 |
| 4 | Primary Grit Collection System | Sewer | Headworks, screening and grit | $4M | 2026–2045 |
| 5 | Primary Grit Collection System | Sewer | Headworks, screening and grit | $3M | 2025–2026 |
| 6 | Leray Street (Main St. West to Damon Dr.) | Water Distribution | Water mains and distribution | $2M | 2026–2027 |
| 7 | Bradley St. (W. Main to City Limits) | Water Distribution | Water mains and distribution | $2M | 2027–2028 |
| 8 | East Main Street (Mill Street to End) | Water Distribution | Water mains and distribution | $2M | 2027–2028 |
| 9 | Disinfection System | Sewer | Disinfection and UV | $2M | 2025–2030 |
| 10 | Huntington Street | Sewer | Sewer rehabilitation and I&I | $2M | 2026–2045 |
102 more line items in Watertown, with descriptions and contacts
Klarifi holds every Watertown line item with its description, the page it appears on and the source document, plus 3 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
$19M
21 items
2026
$38M
49 items
2027
$10M
24 items
2028
$3M
6 items
2029
$4M
11 items
2030
$2M
1 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Sewer | 67 | $50M | 66% |
| Water Supply | 30 | $13M | 17% |
| Water Distribution | 15 | $12M | 16% |
Project types in Watertown's plan
Wastewater treatment plants in Watertown
2 publicly owned treatment plants in Watertown with 37 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| Watertown Pollution Control Plant | 5.21 | NY0025984 | 24 |
| Watertown (t) Sd#1 | 0.007 | NY0099091 | 13 |
Other New York cities with capital plans
Watertown capital plan questions
Sources and methodology
Budgets and years are as published in Watertown’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 2025–2026 (112 line items).
Data refreshed September 11, 2026.