Colorado water and wastewater capital improvement plans
539 planned projects · $2.3B · 19 cities · 19 plans
The 19 capital improvement plans and adopted budgets Klarifi has extracted for Colorado list 539 water, sewer and wastewater line items with a combined planning budget of $2.3B across 19 cities. Windsor has the largest plan at $474M. Each city page lists its largest projects with budgets and years, links the source document and the city's treatment plants.
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.
Cities in Colorado with water and sewer capital plans
| # | City | Line items | Budget | Plans |
|---|---|---|---|---|
| 1 | Windsor | 28 | $474M | 1 |
| 2 | Greeley | 91 | $450M | 1 |
| 3 | Longmont | 20 | $250M | 1 |
| 4 | Johnstown | 38 | $203M | 1 |
| 5 | Westminster | 50 | $197M | 1 |
| 6 | Telluride | 11 | $146M | 1 |
| 7 | Englewood | 26 | $125M | 1 |
| 8 | Loveland | 46 | $97M | 1 |
| 9 | Gunnison | 46 | $73M | 1 |
| 10 | Gunnison County | 46 | $73M | 1 |
| 11 | Denver | 19 | $72M | 1 |
| 12 | Fort Collins | 19 | $49M | 1 |
| 13 | Breckenridge | 17 | $42M | 1 |
| 14 | Summit County | 5 | $16M | 1 |
| 15 | Ridgway | 22 | $14M | 1 |
| 16 | Steamboat Springs | 38 | $14M | 1 |
| 17 | Fountain | 14 | $2M | 1 |
Planned spend by start year
Before 2026
$1.7B
302 items
2026
$287M
77 items
2027
$159M
45 items
2028
$55M
37 items
2029
$42M
29 items
2030
$27M
42 items
2031
$23M
4 items
2032 and later
$2M
3 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 110 | $508M | 22% |
| Sewer | 99 | $321M | 14% |
| Water Supply | 159 | $716M | 31% |
| Water Distribution | 171 | $757M | 33% |
Project types in Colorado
The largest planned projects in Colorado
| # | Project | City | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Northern Integrated Supply Project (NISP) | Windsor, CO | Planning, studies and asset management | $306M | 2025–2030 |
| 2 | Treatment Plant Improvements | Telluride, CO | Wastewater treatment plant upgrades | $133M | 2025–2029 |
| 3 | Liquid Expansion Project | Windsor, CO | Wastewater treatment plant upgrades | $100M | 2025–2028 |
| 4 | Nelson-Flanders WTP Expansion | Longmont, CO | Water treatment plants | $95M | 2026–2028 |
| 5 | WTRF Primary Treatment Phase 2 | Greeley, CO | Clarifiers and settling | $45M | 2024–2025 |
| 6 | Water Distribution Rehabilitation and Improvements | Longmont, CO | Water mains and distribution | $43M | 2025–2029 |
| 7 | Raw Water - Transmission Line | Johnstown, CO | Water mains and distribution | $42M | 2025 |
| 8 | Water Infrastructure Project 3 – Pump Station, Well Houses, and Water Treatment Plant | Gunnison, CO | Pump stations | $40M | 2025–2026 |
| 9 | Water Infrastructure Project 3 – Pump Station, Well Houses, and Water Treatment Plant | Gunnison County, CO | Pump stations | $40M | 2025–2026 |
| 10 | WTP Exp (D&C) | Johnstown, CO | Water treatment plants | $40M | 2025–2033 |
All 539 Colorado line items in Klarifi
Every project with its description, page reference and source document, filterable by city, department, type, budget and year, linked to the plants and decision-makers in each city.
Colorado capital plan questions
Sources and methodology
Budgets and years are as published in each city’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.
Data refreshed September 11, 2026.