Sewer rehabilitation and I&I projects in US capital improvement plans
2,270 planned projects · $13.3B · 451 cities in 43 states
Sanitary sewer lining, replacement and point repairs, manhole rehabilitation, inflow and infiltration reduction, CCTV inspection and collection-system programs.
Klarifi's extraction of published capital improvement plans finds 2,270 sewer rehabilitation projects in 451 cities with a combined planning budget of $13.3B, the largest being Combined Sewer Overflow Control Implementation in Omaha, NE at $555M. The list below ranks the 25 largest by budget; every city links to its full capital plan page.
The largest sewer rehabilitation projects
| # | Project | City | Budget | Years |
|---|---|---|---|---|
| 1 | Combined Sewer Overflow Control Implementation | Omaha, NE | $555M | 2025–2030 |
| 2 | Sanitary Sewer Upgrade | Richmond, VA | $343M | 2026–2030 |
| 3 | Sanitary Sewers | Richmond, VA | $331M | 2025–2029 |
| 4 | Install and Expand New Water and Sewer Service | Charlotte, NC | $264M | 2026–2030 |
| 5 | Sanitary Sewer - Annual Contract | Atlanta, GA | $258M | 2026–2030 |
| 6 | Sewer Main Lining | Chicago, IL | $241M | 2024–2028 |
| 7 | Sewer Mainline and Lateral Projects | Honolulu, HI | $201M | 2025–2031 |
| 8 | Combined Sewer Overflow | Richmond, VA | $200M | 2026–2030 |
| 9 | Pipe Renewal Program | Seattle, WA | $197M | 2025–2030 |
| 10 | Combined Sewer Overflows | Seattle, WA | $184M | 2025–2026 |
| 11 | Custer Avenue Combined Sewer Overflow Capacity Relief | Atlanta, GA | $174M | 2026–2030 |
| 12 | Water Sewer Program - Streets | Fort Worth, TX | $174M | 2025–2029 |
| 13 | North 6 UEP Water, Sewer, Irrigation Collection & Distribution | Cape Coral, FL | $160M | 2025–2029 |
| 14 | Sewer Reconstruction/Rehabilitation | Omaha, NE | $140M | 2025–2030 |
| 15 | Combined Sewer Renovation Program | Omaha, NE | $128M | 2025–2030 |
| 16 | Large Main Sewer Lining | Chicago, IL | $127M | 2025–2028 |
| 17 | Sanitary Sewer Rehabilitation | Greensboro, NC | $122M | 2025–2035 |
| 18 | North 6 UEP Water, Sewer, Irrigation Transmission | Cape Coral, FL | $109M | 2025–2029 |
| 19 | City-Wide Collection Capacity Remediation | Corpus Christi, TX | $108M | 2025–2033 |
| 20 | Wastewater Collection System Projects | Tacoma, WA | $100M | 2025–2030 |
| 21 | Gwynns Falls Phase II Sewershed Improvements for 5 year LOP (GF-2_Conveyance Upgrade) | Baltimore, MD | $98M | 2028 |
| 22 | Small Diameter Sewer Rehabilitation | Phoenix, AZ | $97M | 2024–2029 |
| 23 | Neighborhood Sewer Rehab Program | Houston, TX | $96M | 2025 |
| 24 | Misc Water & Sewer Line Contr | Fort Worth, TX | $94M | 2025–2029 |
| 25 | North 3 UEP Water, Sewer, Irrigation Collection & Distribution | Cape Coral, FL | $89M | 2027 |
All 2,270 sewer rehabilitation 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 sewer rehabilitation projects
| City | Projects | Budget |
|---|---|---|
| Columbus, OH | 43 | $243M |
| Spokane, WA | 37 | $40M |
| Ann Arbor, MI | 36 | $67M |
| Birmingham, MI | 35 | $26M |
| Honolulu, HI | 31 | $972M |
| Watertown, NY | 29 | $20M |
| Brooklyn, MI | 29 | $12M |
| Greensboro, NC | 24 | $244M |
| Kalamazoo, MI | 24 | $39M |
| Neenah, WI | 24 | $10M |
| Schaumburg, IL | 23 | $18M |
| Findlay, OH | 23 | $13M |
States with the most sewer rehabilitation projects
| State | Projects | Budget |
|---|---|---|
| Michigan | 482 | $497M |
| California | 158 | $463M |
| Washington | 144 | $939M |
| Wisconsin | 112 | $105M |
| Ohio | 111 | $288M |
| Illinois | 105 | $679M |
| Minnesota | 93 | $214M |
| Florida | 85 | $1.1B |
| Missouri | 77 | $126M |
| Iowa | 70 | $198M |
| Virginia | 69 | $1.4B |
| Texas | 69 | $1.1B |
Planned spend by start year
Before 2026
$8.4B
1,155 items
2026
$3.0B
481 items
2027
$821M
247 items
2028
$558M
165 items
2029
$226M
100 items
2030
$253M
57 items
2031
$41M
30 items
2032 and later
$41M
35 items
Other project types
Sewer rehabilitation and I&I project 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.