Columbia Lock and Dam Upper water level — Louisiana

Louisiana · USACE · reading Jul 5, 2026, 10:30 PM (UTC+00:00)

Columbia Lock and Dam Upper in Louisiana was last measured at 49.17 ft (datum NGVD29), as of Jul 5, 2026, 10:30 PM (UTC+00:00) (USACE CWMS Data). Over its recent trend window the level has been steady (+0.0 ft). Figures are provisional readings for reference — not for navigation or safety decisions.

Current reading Columbia Lock and Dam Upper · Louisiana
Pool elevation
49.17 ft

Datum NGVD29. Datums vary by station (NGVD29 vs. NAVD88 differ by roughly half a foot to a foot) — never compare bare elevations across lakes without checking the datum.

% of conservation pool full
Not reported
Storage
Not reported
Recent trend
→Steady

+0.0 ft over the trend window

Recent trend

The last ~5 days of readings at this station, downsampled for display.

49.4ft49.0ftApr 15 – Apr 20

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 MVK/Columbia L&D-Upper, 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 Columbia Lock and Dam Upper, with current level and distance.
Lake State Level Distance
Columbia Lock and Dam Lower LA 36.82 ft 0 km
Bayou Darbonne Lake LA 80.47 ft 65 km
Catahoula Lake Center LA 30.67 ft 75 km
Catahoula Structure Landside LA 29.97 ft 76 km
Catahoula Structure Riverside LA 29.00 ft 76 km
Jonesville Lock and Dam Upper LA 36.21 ft 80 km

Frequently asked questions

What is the current water level of Columbia Lock and Dam Upper?
As of Jul 5, 2026, 10:30 PM (UTC+00:00), the pool elevation was 49.17 ft (datum NGVD29). See the trend chart above for the recent direction.
Is Columbia Lock and Dam Upper 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 MVK/Columbia L&D-Upper, 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 Louisiana

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