Reservoir · Missouri · United States · USACE CWMS
Long Branch Dam & Reservoir
62.0% full
Capacity
69.83 hm³
Volume stored
43 hm³
Coordinates
39.752°N, 92.515°W
Last updated
2026-07-30
Current fill
62.0%vs 7 days ago
-0.1%losing
vs 1 year ago
-0.9%year-over-year
7-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: 2026-07-30.
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 July 30, 2026, Long Branch Dam & Reservoir is filled to 62.0% of its total capacity, holding roughly 43 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), and it sits close to where it was a year earlier.
Across the readings we hold for Long Branch Dam & Reservoir — 328 data points between July 31, 2021 and July 30, 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
- 62.0%
- Water stored
- 43 hm³
- Total capacity
- 70 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 0.9 pts
- Primary use
- Multipurpose
- River basin
- Missouri
- Operator
- USACE
- Coordinates
- 39.752°N, 92.515°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 62.0% | 43 |
| 29 Jul 2026 | 62.1% | 43 |
| 28 Jul 2026 | 62.4% | 44 |
| 27 Jul 2026 | 62.7% | 44 |
| 26 Jul 2026 | 63.0% | 44 |
| 25 Jul 2026 | 63.3% | 44 |
| 24 Jul 2026 | 63.5% | 44 |
| 23 Jul 2026 | 63.9% | 45 |
| 22 Jul 2026 | 64.3% | 45 |
| 21 Jul 2026 | 64.7% | 45 |
| 20 Jul 2026 | 65.0% | 45 |
| 19 Jul 2026 | 65.5% | 46 |
Frequently asked questions
What is the current water level of Long Branch Dam & Reservoir?
As of July 30, 2026, Long Branch Dam & Reservoir is at 62.0% of its capacity, holding approximately 43 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Long Branch Dam & Reservoir reservoir full?
No. As of July 30, 2026, Long Branch Dam & Reservoir is within its normal operating range at 62.0% of its capacity, so it is not full.
Is the water level at Long Branch Dam & Reservoir rising or falling?
The level at Long Branch Dam & Reservoir has been broadly stable over the latest week on record (-0.1 points).
How much water can Long Branch Dam & Reservoir hold?
Long Branch Dam & Reservoir has a total capacity of 70 hm³.
Where is Long Branch Dam & Reservoir reservoir located?
Long Branch Dam & Reservoir is located in Missouri, United States, within the Missouri basin (coordinates 39.752°N, 92.515°W).
What is Long Branch Dam & Reservoir used for?
Long Branch Dam & Reservoir is used primarily for multiple purposes, and is managed by USACE.