Reservoir · Missouri · United States · USACE CWMS
Long Branch Dam & Reservoir
101.1% full
Capacity
43.17 hm³
Volume stored
44 hm³
Vs month average
99% of normal
Coordinates
39.752°N, 92.515°W
Last updated
2026-10-29
Current fill
101.1%vs 7 days ago
-1.5 pplosing
vs 1 year ago
N/A7-day trend
↓falling
Drought context
Storage vs October average
99%of normal
101.1% full on 2026-10-29, against an average of 102.3% for October across 2 years of readings (-1.2 points).
Drought Monitor at this site · 27 October 2026
Nonenot in a drought category
Long Branch Dam & Reservoir's coordinates fall outside every category on the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Missouri drought figures →
Data source: USACE CWMS — US Army Corps of Engineers — 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: 2026-10-29.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.752°N, 92.515°W · Open in Google Maps
About Long Branch Dam & Reservoir
As of October 29, 2026, Long Branch Dam & Reservoir is filled to 101.1% of its total capacity, holding 43.64 hm³ of water out of a maximum 43.17 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has fallen by 1.5 percentage points.
Across the readings we hold for Long Branch Dam & Reservoir — 260 data points between October 30, 2021 and October 29, 2026 — the level has ranged from a low of 85.2% (February 9, 2022) to a high of 104.8% (March 26, 2022). On average the reservoir is fullest around April and at its lowest around February.
It is operated by USACE primarily for multiple purposes. It is at 39.752°N, 92.515°W.
Key facts
- Current fill level
- 101.1% of total capacity
- Water stored
- 43.64 hm³
- Total capacity
- 43.17 hm³
- 7-day change
- ▼ 1.5 pp
- Primary use
- Multipurpose
- Operator
- USACE
- Coordinates
- 39.752°N, 92.515°W
- Last updated
- October 29, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 29 Oct 2026 | 101.1% | 43.64 |
| 28 Oct 2026 | 101.2% | 43.7 |
| 27 Oct 2026 | 101.5% | 43.82 |
| 26 Oct 2026 | 101.7% | 43.89 |
| 25 Oct 2026 | 101.9% | 44.01 |
| 24 Oct 2026 | 102.2% | 44.1 |
| 23 Oct 2026 | 102.4% | 44.22 |
| 22 Oct 2026 | 102.6% | 44.28 |
| 21 Oct 2026 | 102.9% | 44.41 |
| 20 Oct 2026 | 103.2% | 44.53 |
| 19 Oct 2026 | 103.4% | 44.62 |
| 18 Oct 2026 | 103.6% | 44.74 |