Reservoir · Oklahoma · United States · BOR RISE
Fort Cobb Reservoir and Dam
83.8% full
Capacity
98.69 hm³
Volume stored
83 hm³
Coordinates
35.167°N, 98.450°W
Last updated
2026-07-28
Current fill
83.8%vs 7 days ago
-0.1%losing
vs 1 year ago
-3.9%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: 2026-07-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 35.167, -98.450 · Open in Google Maps
About Fort Cobb Reservoir and Dam
As of July 28, 2026, Fort Cobb Reservoir and Dam is filled to 83.8% of its total capacity, holding roughly 83 hm³ of water out of a maximum 99 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 3.9 points below its level on the same date a year earlier.
Across the readings we hold for Fort Cobb Reservoir and Dam — 1823 data points between July 31, 2021 and July 28, 2026 — the level has ranged from a low of 74.6% (October 29, 2024) to a high of 105.0% (June 9, 2022). On average the reservoir is fullest around June and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Oklahoma basin at 35.167°N, 98.450°W.
Key facts
- Current fill level
- 83.8%
- Water stored
- 83 hm³
- Total capacity
- 99 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 3.9 pts
- Primary use
- Multipurpose
- River basin
- Oklahoma
- Operator
- BOR
- Coordinates
- 35.167°N, 98.450°W
- Last updated
- July 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Jul 2026 | 83.8% | 83 |
| 27 Jul 2026 | 83.9% | 83 |
| 26 Jul 2026 | 84.1% | 83 |
| 25 Jul 2026 | 84.3% | 83 |
| 24 Jul 2026 | 84.4% | 83 |
| 23 Jul 2026 | 84.5% | 83 |
| 22 Jul 2026 | 84.7% | 84 |
| 21 Jul 2026 | 84.9% | 84 |
| 20 Jul 2026 | 85.0% | 84 |
| 19 Jul 2026 | 85.0% | 84 |
| 18 Jul 2026 | 85.2% | 84 |
| 17 Jul 2026 | 85.3% | 84 |
Frequently asked questions
What is the current water level of Fort Cobb Reservoir and Dam?
As of July 28, 2026, Fort Cobb Reservoir and Dam is at 83.8% of its capacity, holding approximately 83 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Fort Cobb Reservoir and Dam reservoir full?
No. As of July 28, 2026, Fort Cobb Reservoir and Dam is high at 83.8% of its capacity, so it is not full.
Is the water level at Fort Cobb Reservoir and Dam rising or falling?
The level at Fort Cobb Reservoir and Dam has been broadly stable over the latest week on record (-0.1 points).
How much water can Fort Cobb Reservoir and Dam hold?
Fort Cobb Reservoir and Dam has a total capacity of 99 hm³.
Where is Fort Cobb Reservoir and Dam reservoir located?
Fort Cobb Reservoir and Dam is located in Oklahoma, United States, within the Oklahoma basin (coordinates 35.167°N, 98.450°W).
What is Fort Cobb Reservoir and Dam used for?
Fort Cobb Reservoir and Dam is used primarily for multiple purposes, and is managed by BOR.