Reservoir · Oklahoma · United States · BOR RISE
Tom Steed Reservoir
Tom Steed Reservoir and Mountain Park Dam
61.9% full
Capacity
120.29 hm³
Volume stored
74 hm³
Coordinates
34.739°N, 98.987°W
Last updated
2026-09-09
Current fill
61.9%vs 7 days ago
-1.0%losing
vs 1 year ago
-28.0%year-over-year
7-day trend
→stable
Data source: BOR RISE — US Bureau of Reclamation — 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: 2026-09-09.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 34.739, -98.987 · Open in Google Maps
About Tom Steed Reservoir
As of September 9, 2026, Tom Steed Reservoir is filled to 61.9% of its total capacity, holding roughly 74 hm³ of water out of a maximum 120 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 (-1.0 pts), and it is 28.0 points below its level on the same date a year earlier.
Across the readings we hold for Tom Steed Reservoir — 1950 data points between September 12, 2021 and September 9, 2026 — the level has ranged from a low of 49.3% (November 1, 2024) to a high of 101.8% (June 16, 2025). On average the reservoir is fullest around June and at its lowest around April.
It is operated by BOR primarily for multiple purposes. It lies within the Oklahoma basin at 34.739°N, 98.987°W.
Key facts
- Current fill level
- 61.9%
- Water stored
- 74 hm³
- Total capacity
- 120 hm³
- 7-day change
- ▼ 1.0 pts
- Year-on-year
- ▼ 28.0 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- BOR
- Coordinates
- 34.739°N, 98.987°W
- Last updated
- September 9, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 9 Sep 2026 | 61.9% | 74 |
| 8 Sep 2026 | 62.0% | 75 |
| 7 Sep 2026 | 62.2% | 75 |
| 6 Sep 2026 | 62.4% | 75 |
| 5 Sep 2026 | 62.5% | 75 |
| 4 Sep 2026 | 62.7% | 75 |
| 3 Sep 2026 | 62.7% | 75 |
| 2 Sep 2026 | 62.9% | 76 |
| 1 Sep 2026 | 63.2% | 76 |
| 31 Aug 2026 | 63.3% | 76 |
| 30 Aug 2026 | 63.4% | 76 |
| 29 Aug 2026 | 63.7% | 77 |