Glossary
Flood pool
Flood pool is the authorized storage band above normal full pool on many managed reservoirs—space reserved to catch flood inflows before releases or spillway use. It is a project rulebook elevation, not the same as flood stage on a river gauge.
Published May 16, 2026 · Editorial standards
Why it matters on the water
Boaters see “full” in July and wonder why the lake can legally rise several feet higher in a wet spring. That extra band is often flood storage, not bonus recreation space. Comparing today's stage to the wrong target line leads to bad ramp, dock, and hazard calls.
On Lake Insights, compare live stage to full pool, winter pool, and any published flood-pool crest using the same datum labels.
Flood pool vs flood stage
| Term | Context |
|---|---|
| Flood pool | Reservoir elevation band above recreation full for flood storage |
| Flood stage | Impact threshold at a specific river gauge (NWS/USGS) |
| Full / conservation pool | Normal upper operating target when conditions allow |
On real lakes
Related lake intelligence
Rathbun Lake
/lakes/rathbun
Rathbun Lake lists a full-pool reference of 904 ft—compare live stage to published pool bands on the lake page. Published levels use NGVD29 relative to MSL unless the lake page notes otherwise.
Related lake intelligence
Lake Travis
/lakes/travis
Lake Travis lists a full-pool reference of 681 ft—compare live stage to published pool bands on the lake page. Published levels use MSL unless the lake page notes otherwise.
Related lake intelligence
Caballo Reservoir
/lakes/caballo
See Caballo Reservoir for live stage, pool guides, and threshold context.
- Is flood pool the top of the dam?
Not necessarily. It is the top of the authorized flood-storage band in the pool guide, which may still be below the physical crest or spillway routing limits.
Related terms: Full pool · Conservation pool · Flood stage · Reservoir · USACE
Reference information only. See data sources, editorial standards, or suggest a correction.