Reservoir · Kansas · United States · USGS NWIS
TUTTLE C LK NR MANHATTAN, KS
49.2% full
Capacity
742.68 hm³
Volume stored
366 hm³
Coordinates
39.254°N, 96.603°W
Last updated
2026-09-10
Current fill
49.2%vs 7 days ago
-1.1%losing
vs 1 year ago
-9.5%year-over-year
7-day trend
→stable
Data source: USGS National Water Information System (NWIS) — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-09-10.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.254, -96.603 · Open in Google Maps
About TUTTLE C LK NR MANHATTAN, KS
As of September 10, 2026, TUTTLE C LK NR MANHATTAN, KS is filled to 49.2% of its total capacity, holding roughly 366 hm³ of water out of a maximum 743 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-1.1 pts), and it is 9.5 points below its level on the same date a year earlier.
Across the readings we hold for TUTTLE C LK NR MANHATTAN, KS — 1095 data points between September 12, 2023 and September 10, 2026 — the level has ranged from a low of 27.7% (January 28, 2024) to a high of 100.0% (June 17, 2026). On average the reservoir is fullest around June and at its lowest around January.
It is operated by USGS primarily for multiple purposes. It lies within the Kansas basin at 39.254°N, 96.603°W.
Key facts
- Current fill level
- 49.2%
- Water stored
- 366 hm³
- Total capacity
- 743 hm³
- 7-day change
- ▼ 1.1 pts
- Year-on-year
- ▼ 9.5 pts
- Primary use
- Multipurpose
- River basin
- Kansas
- Operator
- USGS
- Coordinates
- 39.254°N, 96.603°W
- Last updated
- September 10, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 10 Sep 2026 | 49.2% | 366 |
| 9 Sep 2026 | 49.3% | 366 |
| 8 Sep 2026 | 49.3% | 366 |
| 7 Sep 2026 | 49.5% | 368 |
| 6 Sep 2026 | 49.8% | 370 |
| 5 Sep 2026 | 50.0% | 371 |
| 4 Sep 2026 | 50.1% | 372 |
| 3 Sep 2026 | 50.3% | 374 |
| 2 Sep 2026 | 50.5% | 375 |
| 1 Sep 2026 | 50.6% | 376 |
| 31 Aug 2026 | 50.7% | 377 |
| 30 Aug 2026 | 50.7% | 377 |