Reservoir · Missouri · United States · USACE CWMS
Long Branch Dam & Reservoir
55.8% full
Capacity
69.83 hm³
Volume stored
39 hm³
Coordinates
39.752°N, 92.515°W
Last updated
2026-09-11
Current fill
55.8%vs 7 days ago
-0.1%losing
vs 1 year ago
N/A7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — 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: 2026-09-11.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.752, -92.515 · Open in Google Maps
About Long Branch Dam & Reservoir
As of September 11, 2026, Long Branch Dam & Reservoir is filled to 55.8% of its total capacity, holding roughly 39 hm³ of water out of a maximum 70 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 (-0.1 pts).
Across the readings we hold for Long Branch Dam & Reservoir — 328 data points between September 12, 2021 and September 11, 2026 — the level has ranged from a low of 52.6% (February 9, 2022) to a high of 100.0% (June 14, 2026). On average the reservoir is fullest around June and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It lies within the Missouri basin at 39.752°N, 92.515°W.
Key facts
- Current fill level
- 55.8%
- Water stored
- 39 hm³
- Total capacity
- 70 hm³
- 7-day change
- ▼ 0.1 pts
- Primary use
- Multipurpose
- River basin
- Missouri
- Operator
- USACE
- Coordinates
- 39.752°N, 92.515°W
- Last updated
- September 11, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 11 Sep 2026 | 55.8% | 39 |
| 10 Sep 2026 | 55.8% | 39 |
| 9 Sep 2026 | 55.6% | 39 |
| 8 Sep 2026 | 55.4% | 39 |
| 7 Sep 2026 | 55.6% | 39 |
| 6 Sep 2026 | 55.8% | 39 |
| 5 Sep 2026 | 55.9% | 39 |
| 4 Sep 2026 | 55.9% | 39 |
| 3 Sep 2026 | 56.0% | 39 |
| 2 Sep 2026 | 56.2% | 39 |
| 1 Sep 2026 | 56.3% | 39 |
| 31 Aug 2026 | 56.4% | 39 |