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Polk Swamp at Us-15 below St George water level

River gauge, Polk Swamp, South Carolina, United States

Directions

Latest reading

Water level

4.12ft Steady over the last 24 hours

3 4 5 6

History

4.134.154.18ftOct 16Oct 17Oct 18Oct 19Oct 204.134.154.18ftOct 16Oct 18Oct 20
3.94.04.14.2ftSep 21Sep 28Oct 5Oct 13Oct 203.94.04.14.2ftSep 21Oct 5Oct 20
456ftOct 2025Jan 2026Apr 2026Jul 2026Oct 2026456ftOct 2025Apr 2026Oct 2026
456ftJanMarMayJulSepNov2026456ftJanAprJulOct2026

20252026

Water level

What this means

The Polk Swamp at Us-15 below St George reads 4.12 ft as of Oct 20, 2026, 09:15 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 3.91 ft and 4.25 ft.

Over the past seven days the change adds up to −0.12 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
4.56 ft−0.44 ft
Lowest and highest in 30 days
3.91 ft – 4.25 ft
Lowest and highest in 12 months
3.91 ft – 6.07 ft

Floating and fishing near Polk Swamp at Us-15 below St George

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° 42° – Wind 10 mph
21 Wed 73° 48° – Wind 11 mph
22 Thu 75° 51° – Wind 5 mph
23 Fri 72° 51° – Wind 9 mph
24 Sat 73° 53° – Wind 12 mph
25 Sun 75° 54° – Wind 11 mph
26 Mon 78° 54° – Wind 8 mph

Forecast: Open-Meteo

Sunrise 07:31 AM Sunset 06:44 PM Daylight 11 hr, 13 min First quarter 69%

Map

Other gauges on the Polk Swamp

Gauge Level Compared with normal 24 hours Distance
Polk Swamp at I-95 above St GeorgeRiver gauge, Polk Swamp 4.69 ft No reference yet −0.03 ft 4.0 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Edisto River below CanadysRiver gauge, Edisto River 12.43 ft Very low +0.02 ft 6.0 mi
Edisto River near BranchvilleRiver gauge, Edisto River 1.94 ft Below flood stage +0.04 ft 13 mi
Edisto River near GivhansRiver gauge, Edisto River 2.41 ft Low −0.13 ft 13 mi
Ireland Creek at Us-15 at WalterboroRiver gauge, Ireland Creek 2.57 ft Below flood stage −0.05 ft 16 mi
Cow Castle Creek near BowmanRiver gauge, Cow Castle Creek 0.87 ft Below flood stage +0.02 ft 18 mi
Ashley River at Cooke CrossroadsTidal gauge, Ashley River 15.21 ft Normal +1.86 ft 25 mi
Ashley River below SummervilleTidal gauge, Ashley River 8.88 ft Very low +0.90 ft 29 mi
South Fork Edisto River near BambergRiver gauge, South Fork Edisto River 8.14 ft Normal +0.12 ft 29 mi

Questions and answers

How does the Polk Swamp at Us-15 below St George compare with last year?

It is 0.44 ft lower than on the same day last year, when the reading was 4.56 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 Polk Swamp at Us-15 below St George today?

On Oct 20, 2026, 09:15 AM EDT, the water level was 4.12 ft. Steady over the last 24 hours.

Is Polk Swamp at Us-15 below St George rising or falling?

Steady over the last 24 hours. Down 0.12 ft over the last 7 days.

Is the level of Polk Swamp at Us-15 below St George 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:02174080 (Agency page)
Coordinates
33.13361, -80.58100 (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

ParameterLast valueTime (UTC)Quality
Water level 4.12 ft 2026-10-20 13:15 Provisional

Download

Embed this gauge

Add a live card for this gauge to your website. It updates on its own and links back here.

How to cite

U.S. Geological Survey: Polk Swamp at Us-15 below St George (usgs:02174080). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/south-carolina/polk-swamp-at-us-15-below-st-george

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