Sawmill Branch at Ashley Drive near Summerville water level

Name: Sawmill Branch at Ashley Drive near Summerville water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Sawmill Branch, South Carolina, United States

Directions

Latest reading

Water level

3.14ft Steady over the last 24 hours

Measured Oct 21, 2026, 02:00 AM EDT (21 min ago)

History

7 days 30 days 1 year Years compared

20252026

Water level

What this means

Sawmill Branch at Ashley Drive near Summerville reads 3.14 ft as of Oct 21, 2026, 02:00 AM EDT. The agency publishes no normal range or warning level for this river yet, so there is nothing to judge the number against.

The level has held steady over the past 24 hours. In the last month it has stayed between 3.14 ft and 4.43 ft.

Over the past seven days the change adds up to −0.20 ft.

The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels

Key numbers

Same day last year: 3.37 ft−0.23 ft
Lowest and highest in 30 days: 3.14 ft – 4.43 ft
Lowest and highest in 12 months: 2.99 ft – 4.68 ft

Floating and fishing near Sawmill Branch at Ashley Drive near Summerville

Use the recent trend as your guide, and ask locally which gage height makes for a good float.

Weather at the gauge

No rain in the last 3 days.

20 Tue 74° 45° – Wind 10 mph

21 Wed 73° 49° – Wind 9 mph

22 Thu 72° 46° – Wind 8 mph

23 Fri 73° 54° – Wind 10 mph

24 Sat 71° 54° – Wind 13 mph

25 Sun 73° 55° – Wind 13 mph

26 Mon 75° 55° – Wind 9 mph

Forecast: Open-Meteo

Sunrise 07:30 AM Sunset 06:42 PM Daylight 11 hr, 12 min Waxing gibbous 75%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Ashley River at Cooke CrossroadsTidal gauge, Ashley River	13.20 ft	Normal	−1.98 ft	3.3 mi
Ashley River below SummervilleTidal gauge, Ashley River	8.96 ft	Low	−1.72 ft	5.7 mi
Edisto River near GivhansRiver gauge, Edisto River	2.33 ft	Low	−0.11 ft	12 mi
Back River at Dupont Intake near KittredgeTidal gauge, Back River	16.84 ft	High	+0.06 ft	13 mi
Cooper River near Goose CreekTidal gauge, Cooper River	16.88 ft	High	−0.27 ft	15 mi
West Branch Cooper River at Pimlico near Moncks CornerTidal gauge, West Branch Cooper River	12.67 ft	Normal	−0.04 ft	15 mi
Ashley River near North CharlestonTidal gauge, Ashley River	9.84 ft	Very high	−0.55 ft	15 mi
Cooper River at Filbin Creek at North CharlestonTidal gauge, Cooper River	12.32 ft	Very high	−0.89 ft	15 mi

Questions and answers

How does Sawmill Branch at Ashley Drive near Summerville compare with last year?

It is 0.23 ft lower than on the same day last year, when the reading was 3.37 ft.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Sawmill Branch at Ashley Drive near Summerville today?

On Oct 21, 2026, 02:00 AM EDT, the water level was 3.14 ft. Steady over the last 24 hours.

Is Sawmill Branch at Ashley Drive near Summerville rising or falling?

Steady over the last 24 hours. Down 0.20 ft over the last 7 days.

Is the level of Sawmill Branch at Ashley Drive near Summerville normal?

The agency publishes no normal range for this gauge yet, so we show the trend only.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:0217208135 (Agency page)
Coordinates: 33.00411, -80.18269 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	3.14 ft	2026-10-21 06:00	Provisional

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How to cite

U.S. Geological Survey: Sawmill Branch at Ashley Drive near Summerville (usgs:0217208135). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/south-carolina/sawmill-branch-at-ashley-drive-near-summerville

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer