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Lieutenant River Water Level

Live gauge height for Lieutenant River, measured at USGS station CONNECTICUT RIVER AT OLD LYME, CT.

Current gauge height
0.05 ft
Updated 44 min ago
vs. 30-day average
-3.20 ft
30-day avg: 3.25 ft
Water temperature
74°F

30-Day Water Level Trend

2026-08-03Range: 2.793.83 ft2026-09-01

Lieutenant River is currently 3.2 ft below its 30-day average — shallow ramps may have less water at the end of the concrete; trim up early and check local reports before launching.

Boat Ramps on Lieutenant River (7)

See all Lieutenant River boat ramps →

Lieutenant River Water Level FAQ

What is the water level of Lieutenant River today?

The USGS gauge for Lieutenant River (CONNECTICUT RIVER AT OLD LYME, CT) currently reads a gauge height of 0.05 feet, 3.2 ft below its 30-day average. Readings update throughout the day from USGS instrumentation.

Is Lieutenant River high or low right now?

Compared with the past 30 days, Lieutenant River is 3.2 ft below its 30-day average.

Where can I launch a boat on Lieutenant River?

BoatLaunchMap lists 7 boat ramps on Lieutenant River, each with directions, ratings, and launch details.

Data: U.S. Geological Survey, station 01194796. Gauge height is measured relative to the station datum, not lake depth. Always verify conditions on site before launching.