Davenport, Iowa: water and wastewater capital improvement projects
17 line items · $81M · starting 2026–2030 · 1 plan
Davenport's published capital plans list 17 water, sewer and wastewater line items with a combined planning budget of $81M, of which 17 items worth $81M sit in the wastewater and sewer departments. The largest single item is WPCP | Digester Rehabilitation Project at $27M (2026–2028). 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 Davenport
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | WPCP | Digester Rehabilitation Project | Wastewater | Anaerobic digesters and biogas | $27M | 2026–2028 |
| 2 | Sewer Rehabilitation Program | Sewer | Sewer rehabilitation and I&I | $17M | 2026–2031 |
| 3 | Sanitary Sewer Repair Program | Sewer | Sewer rehabilitation and I&I | $8M | 2026–2031 |
| 4 | SSES Program | Sewer | Sewer rehabilitation and I&I | $7M | 2026–2031 |
| 5 | Sewer Lateral Repair Program | Sewer | Sewer rehabilitation and I&I | $7M | 2026–2031 |
| 6 | WPCP | Influent Bar Screen Replacement | Wastewater | Headworks, screening and grit | $5M | 2026 |
| 7 | WPCP | Clarifier Drive Repair & Replacement | Wastewater | Clarifiers and settling | $2M | 2026–2027 |
| 8 | Sanitary Sewer | Iowa Street | Sewer | Sewer rehabilitation and I&I | $2M | 2029–2030 |
| 9 | WPCP | Lift Station Wet Well Inspection | Wastewater | Lift stations | $923K | 2029 |
| 10 | WPCP | Aeration Basin Rehabilitation | Wastewater | Aeration and blowers | $875K | 2026–2031 |
7 more line items in Davenport, with descriptions and contacts
Klarifi holds every Davenport line item with its description, the page it appears on and the source document, plus 43 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
2026
$76M
11 items
2027
$225K
1 items
2029
$2M
2 items
2030
$2M
3 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 9 | $39M | 48% |
| Sewer | 8 | $42M | 52% |
Project types in Davenport's plan
Wastewater treatment plants in Davenport
2 publicly owned treatment plants in Davenport 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) |
|---|---|---|---|
| Davenport, City Of-West Locust Lagoon | — | IA0076261 | 2 |
| Davenport Wastewater Treatment Plant | — | IA0043052 | 0 |
Other Iowa cities with capital plans
Davenport capital plan questions
Sources and methodology
Budgets and years are as published in Davenport’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 2023–2026 (17 line items).
Data refreshed September 11, 2026.