Reservoir · Arizona · United States · USGS NWIS
Roosevelt Lake
37.9% full
Capacity
2,012.47 hm³
Volume stored
763 hm³
Coordinates
33.672°N, 111.161°W
Last updated
2026-08-02
Current fill
37.9%vs 7 days ago
-0.1%losing
vs 1 year ago
-3.5%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: 2026-08-02.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 33.672, -111.161 · Open in Google Maps
About Roosevelt Lake
As of August 2, 2026, Roosevelt Lake is filled to 37.9% of its total capacity, holding roughly 763 hm³ of water out of a maximum 2,012 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 3.5 points below its level on the same date a year earlier.
Across the readings we hold for Roosevelt Lake — 1097 data points between August 2, 2023 and August 2, 2026 — the level has ranged from a low of 37.9% (July 13, 2026) to a high of 96.7% (April 29, 2024). On average the reservoir is fullest around August and at its lowest around July.
It is operated by SRP primarily for multiple purposes. It lies within the Salt River basin at 33.672°N, 111.161°W.
Key facts
- Current fill level
- 37.9%
- Water stored
- 763 hm³
- Total capacity
- 2,012 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 3.5 pts
- Primary use
- Multipurpose
- River
- Salt River
- River basin
- Salt River
- Operator
- SRP
- Coordinates
- 33.672°N, 111.161°W
- Last updated
- August 2, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 2 Aug 2026 | 37.9% | 763 |
| 1 Aug 2026 | 38.0% | 764 |
| 31 Jul 2026 | 38.0% | 766 |
| 30 Jul 2026 | 38.1% | 767 |
| 29 Jul 2026 | 38.2% | 769 |
| 28 Jul 2026 | 38.2% | 769 |
| 27 Jul 2026 | 38.3% | 771 |
| 26 Jul 2026 | 38.3% | 771 |
| 25 Jul 2026 | 38.3% | 771 |
| 24 Jul 2026 | 38.4% | 772 |
| 23 Jul 2026 | 38.4% | 772 |
| 22 Jul 2026 | 38.2% | 769 |
Frequently asked questions
What is the current water level of Roosevelt Lake?
As of August 2, 2026, Roosevelt Lake is at 37.9% of its capacity, holding approximately 763 hm³ of water, according to SRP (Salt River Project) data.
Is Roosevelt Lake reservoir full?
No. As of August 2, 2026, Roosevelt Lake is low at 37.9% of its capacity, so it is not full.
Is the water level at Roosevelt Lake rising or falling?
The level at Roosevelt Lake has been broadly stable over the latest week on record (-0.1 points).
How much water can Roosevelt Lake hold?
Roosevelt Lake has a total capacity of 2,012 hm³.
Where is Roosevelt Lake reservoir located?
Roosevelt Lake is located in Arizona, United States, within the Salt River basin (coordinates 33.672°N, 111.161°W).
What is Roosevelt Lake used for?
Roosevelt Lake is used primarily for multiple purposes, and is managed by SRP.