What is the current water level of Nav Pool?

As of Jun 29, 2026, 1:00 PM (UTC+00:00), the pool elevation was 370.16 ft (datum NAVD88). See the trend chart above for the recent direction.

Is Nav Pool full right now?

Its managing agency does not publish a %-of-conservation-pool-full figure for this lake, so we show the bare level rather than estimate one.

Where does this data come from?

From USACE MVS/Nav Pool-Kaskaskia, retrieved Jul 14, 2026, 10:55 PM (UTC+00:00). See the official link and the methodology page for the full source and update cadence.

Is this safe to use for boating or navigation?

No. Levels here are provisional readings for general reference only — not for navigation, dam-safety, or other safety decisions. Always confirm current conditions with the managing agency before making those calls.

Nav Pool water level — Illinois

Illinois · USACE · reading Jun 29, 2026, 1:00 PM (UTC+00:00)

Nav Pool in Illinois was last measured at 370.16 ft (datum NAVD88), as of Jun 29, 2026, 1:00 PM (UTC+00:00) (USACE CWMS Data). Over its recent trend window the level has been rising (+1.3 ft). Figures are provisional readings for reference — not for navigation or safety decisions.

Current reading Nav Pool · Illinois

Pool elevation: 370.16 ft
% of conservation pool full: Not reported
Storage: Not reported
Recent trend: ↑Rising

Recent trend

The last ~74 days of readings at this station, downsampled for display.

Data: USGS Water Services (waterservices.usgs.gov) and USACE CWMS Data (cwms-data.usace.army.mil), retrieved 2026-07-14. Both public domain (a work of the U.S. Government, 17 U.S.C. §105).

Important — not for navigation or safety decisions

Water levels here are provisional readings for general reference only. Conditions vary and readings can be revised. Always confirm current conditions with the managing agency before making navigation, boating, or dam-safety decisions.

Source: USACE MVS/Nav Pool-Kaskaskia, retrieved Jul 14, 2026, 10:55 PM (UTC+00:00). Official page for this lake →

Nearby lakes

The six nearest published lakes by centroid distance (great-circle) — cross-state neighbors included.

Lakes nearest to Nav Pool, with current level and distance.
Lake	State	Level	Distance
Nav Tw	IL	369.55 ft	0 km
Hecker	IL	402.95 ft	38 km
Freeburg	IL	381.80 ft	47 km
Desloge	MO	653.83 ft	51 km
Sand Ridge	IL	340.96 ft	53 km
Bonne Terre	MO	630.77 ft	55 km

Frequently asked questions

What is the current water level of Nav Pool?: As of Jun 29, 2026, 1:00 PM (UTC+00:00), the pool elevation was 370.16 ft (datum NAVD88). See the trend chart above for the recent direction.
Is Nav Pool full right now?: Its managing agency does not publish a %-of-conservation-pool-full figure for this lake, so we show the bare level rather than estimate one.
Where does this data come from?: From USACE MVS/Nav Pool-Kaskaskia, retrieved Jul 14, 2026, 10:55 PM (UTC+00:00). See the official link and the methodology page for the full source and update cadence.
Is this safe to use for boating or navigation?: No. Levels here are provisional readings for general reference only — not for navigation, dam-safety, or other safety decisions. Always confirm current conditions with the managing agency before making those calls.

More in Illinois

See every lake tracked in Illinois, or read the methodology behind these figures.