Storage tank and reservoir projects in US capital improvement plans
639 planned projects · $2.3B · 273 cities in 38 states
In short
How many storage projects are in US city capital plans?
Klarifi’s extraction of published capital improvement plans finds 639 storage projects in 273 cities across 38 states, with a combined budget of $2.3B. The largest is Upground Reservoir - Site 3 in Columbus, OH, at $100M.
Elevated and ground storage tanks, standpipes, reservoirs and clearwells: painting and recoating, structural rehabilitation, mixing and new capacity. The list below ranks the 10 largest by budget; every city links to its full capital plan page.
The largest storage projects
| # | Project | City | Budget | Years |
|---|---|---|---|---|
| 1 | Upground Reservoir - Site 3 | Columbus, OH | $100M | 2029 |
| 2 | Reservoir Covering-Bitter Lake | Seattle, WA | $86M | 2025–2030 |
| 3 | Elevated Water Storage Tanks - City-Wide | Corpus Christi, TX | $65M | 2025–2031 |
| 4 | Concrete Reservoir Rehabilitation | Phoenix, AZ | $50M | 2024–2029 |
| 5 | Dam Safety | Seattle, WA | $49M | 2025–2030 |
| 6 | Intentionally Created Storage | Phoenix, AZ | $43M | 2028–2029 |
| 7 | Design replace the influent System including tanks etc. | Rockland, MA | $40M | 2028 |
| 8 | NWTP FWPS and Reservoir Replacement | Gilbert, AZ | $40M | 2030–2034 |
| 9 | Upground Reservoir | Delaware, OH | $39M | 2026–2029 |
| 10 | Water Tanks | Chesterfield, VA | $39M | 2026–2030 |
All 639 storage projects, with descriptions and contacts
Every line item with its description, page reference and source document, filterable by state, budget and start year, linked to the treatment plants and decision-makers in each city, and refreshed as new plans are adopted.
Cities with the most storage projects
| City | Projects | Budget |
|---|---|---|
| Henderson, NV | 30 | $85M |
| Simi Valley, CA | 13 | $14M |
| Greensboro, NC | 12 | $5M |
| Killona, LA | 11 | $501K |
| Juneau, AK | 10 | $24M |
| Spokane, WA | 10 | $21M |
| Phoenix, AZ | 9 | $207M |
| Columbus, OH | 9 | $157M |
| Baltimore, MD | 9 | $118M |
| Gilbert, AZ | 9 | $101M |
| Alpena, MI | 8 | $333K |
| Portland, OR | 7 | $29M |
States with the most storage projects
| State | Projects | Budget |
|---|---|---|
| Michigan | 89 | $74M |
| California | 49 | $174M |
| Washington | 48 | $279M |
| Nevada | 31 | $86M |
| Ohio | 29 | $207M |
| Oregon | 29 | $97M |
| North Carolina | 29 | $76M |
| Texas | 27 | $177M |
| Florida | 27 | $99M |
| Colorado | 25 | $64M |
| Virginia | 24 | $79M |
| Arizona | 22 | $330M |
Planned spend by start year
Before 2026
$1.2B
263 items
2026
$365M
150 items
2027
$166M
71 items
2028
$218M
55 items
2029
$145M
35 items
2030
$109M
26 items
2031
$13M
7 items
2032 and later
$115M
30 items
Unscheduled
$7M
2 items
Other project types
Questions about storage projects
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 October 12, 2026.
Wastewater terms: Lift station · Inflow and infiltration · Sludge dewatering · WWTP · Significant industrial user · Biosolids · all terms