Reservoir · Kansas · United States · USACE CWMS
Webster Dam
13.9% full
Capacity
95.44 hm³
Volume stored
13 hm³
Coordinates
39.409°N, 99.425°W
Last updated
2026-06-11
Current fill
13.9%vs 7 days ago
0.0%stable
vs 1 year ago
-0.5%year-over-year
7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-06-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.409, -99.425 · Open in Google Maps
About Webster Dam
As of June 11, 2026, Webster Dam is filled to 13.9% of its total capacity, holding roughly 13 hm³ of water out of a maximum 95 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (+0.0 pts), and it sits close to where it was a year earlier.
Across the readings we hold for Webster Dam — 621 data points between April 1, 2023 and June 11, 2026 — the level has ranged from a low of 13.9% (May 28, 2026) to a high of 62.6% (June 19, 2023). On average the reservoir is fullest around June and at its lowest around March.
It is operated by USACE primarily for multiple purposes. It lies within the Kansas basin at 39.409°N, 99.425°W.
Key facts
- Current fill level
- 13.9%
- Water stored
- 13 hm³
- Total capacity
- 95 hm³
- 7-day change
- No change
- Year-on-year
- ▼ 0.5 pts
- Primary use
- Multipurpose
- River basin
- Kansas
- Operator
- USACE
- Coordinates
- 39.409°N, 99.425°W
- Last updated
- June 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Jun 2026 | 13.9% | 13 |
| 10 Jun 2026 | 13.9% | 13 |
| 9 Jun 2026 | 13.9% | 13 |
| 8 Jun 2026 | 14.0% | 13 |
| 7 Jun 2026 | 14.1% | 13 |
| 6 Jun 2026 | 14.1% | 13 |
| 5 Jun 2026 | 14.1% | 13 |
| 4 Jun 2026 | 14.1% | 13 |
| 3 Jun 2026 | 13.9% | 13 |
| 2 Jun 2026 | 14.0% | 13 |
| 1 Jun 2026 | 14.0% | 13 |
| 31 May 2026 | 13.9% | 13 |
Frequently asked questions
What is the current water level of Webster Dam?
As of June 11, 2026, Webster Dam is at 13.9% of its capacity, holding approximately 13 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Webster Dam reservoir full?
No. As of June 11, 2026, Webster Dam is critically low at 13.9% of its capacity, so it is not full.
Is the water level at Webster Dam rising or falling?
The level at Webster Dam has been broadly stable over the latest week on record (0.0 points).
How much water can Webster Dam hold?
Webster Dam has a total capacity of 95 hm³.
Where is Webster Dam reservoir located?
Webster Dam is located in Kansas, United States, within the Kansas basin (coordinates 39.409°N, 99.425°W).
What is Webster Dam used for?
Webster Dam is used primarily for multiple purposes, and is managed by USACE.