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Red River at Port Royal water level

River gauge, Red River, Tennessee, United States

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Right now

Below flood stage

Water level

3.84ft Down 0.08 ft over the last 24 hours

Flow
115 cfs
0 25 50 Highest onrecord 49.48 ft Minor floodstage 30.00 ft

History

History
3.94.04.1ftOct 16Oct 17Oct 18Oct 19Oct 203.94.04.1ftOct 16Oct 18Oct 20
Water level Minor flood stage

What this means

The gauge at Red River at Port Royal reads 3.84 ft, a normal level.

It is 26.16 ft below the flood stage of 30.00 ft.

The level is falling, down 0.08 ft over the past 24 hours. Over the past 30 days it has moved between 3.84 ft and 4.15 ft.

Fall is often low-water season on rivers, until steadier rain returns.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record
49.48 ftMay 3, 2010

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 30.00 ft, still 26.16 ft away.

What happens at each level

52.00 ft
Record flooding is impacting many homes near the river, and many main roads are affected as well including the northbound lanes of I-24, Hwy 161, Porters Chapel Rd, portions of Hwy 238 near Port Royal State Park, Warfield Blvd near Shady Bluff Trail, Buzzard Creek Rd, and Keysburg Rd.
50.00 ft
Widespread flooding is impacting homes on Rivermont Dr, River Run, Idlewood Dr, Wimbledon Ct, Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, Riverhaven Dr, Stonegate Dr and Willow Bend Dr. Water reaches Hwy 161, Porters Chapel Rd, Hwy 238 near Port Royal State Park, the northbound lanes of I-24, Warfield Blvd near Shady Bluff Trail, Buzzard Creek Rd, and Keysburg Rd. Water approaches Hwy 238 near Port Royal Rd just south of Port Royal State Park which may be impassable.
48.00 ft
Flooding continues to impact homes on Rivermont Dr, River Run, Idlewood Dr, Wimbledon Ct, Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, Riverhaven Dr, Stonegate Dr and Willow Bend Dr. Water reaches Hwy 161 near the state line, Porters Chapel Rd near Hugh Gill Rd, and Hwy 238 near Port Royal State Park. Water approaches northbound lanes of I-24 near the river, Warfield Blvd near Shady Bluff Trail, Buzzard Creek Rd, and Keysburg Rd, which may be impassable at higher levels.
46.00 ft
Homes on Rivermont Dr, River Run, Idlewood Dr, and Wimbledon Ct are impacted and homes on Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, and Riverhaven Dr begin to be impacted. Water reaches yards of homes on Stonegate Dr and Willow Bend Dr, and approaches Hwy 161 near the Kentucky State Line, Porters Chapel Rd near Hugh Gill Rd, and Hwy 238 just north of the bridge at Port Royal State Park which may be impassable at higher levels.
44.00 ft
Water reaches homes on Rivermont Dr, River Run, Idlewood Dr, and Wimbledon Ct, and reaches yards of homes on Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, and Riverhaven Dr. Water reaches the Port Royal State Park Trail of Tears Trailhead parking area, and approaches yards of homes on Stonegate Dr and Willow Bend Dr.
42.00 ft
Flood waters begin to approach homes on Rivermont Dr, River Run, Idlewood Dr, and Wimbledon Ct, and approach yards of homes on Colin Ct, E Accipiter Cir, Pond Apple Rd, Foxfire Rd, Hay Market Rd, and Riverhaven Dr. Roads are also impacted and impassable, including Port Royal Rd near Hwy 238 and Dunbar Cave Rd just west of Warfield Blvd.
40.00 ft
Significant flooding continues to affect areas along the river, including the Red River Valley Park, Port Royal Rd near Hwy 238, Dunbar Cave Rd just west of Warfield Blvd which is covered with water, and portions of the Swan Lake Golf Course. Water reaches yards of homes on Rivermont Dr, River Run, Idlewood Dr, and Wimbledon Ct.
38.00 ft
Significant flooding is impacting agricultural land, parks, and access areas along the river, including the Red River Valley Park where several campsites are flooded, and Port Royal Rd near Hwy 238 which is covered with water. Water approaches Dunbar Cave Rd just west of Warfield Blvd and may be impassable at higher levels, and water reaches low lying portions of the Swan Lake Golf Course.
36.00 ft
Flooding continues to affect agricultural land, parks, and access areas along the river, including the Red River Valley Park where water reaches campsites and evacuations may be needed, and Port Royal Rd near Hwy 238 which is covered with water. Water approaches Dunbar Cave Rd just west of Warfield Blvd and may be impassable at higher levels.
34.00 ft
Flooding continues to affect agricultural land and adjacent areas along the river, including the Porter Chapel Public Access Area, and the Red River Valley Park where water approaches campsites and evacuations may be needed for higher levels. Water approaches Port Royal Rd near Hwy 238 which may be impassable at higher levels.
32.00 ft
Flood waters continue to impact agricultural land and adjacent areas along the river from the Kentucky State Line through Adams, past Port Royal State Park, to Clarksville. This includes the Red River Valley Park where water covers most of the parking area, the Porters Chapel Public Access area, The River Club golf course which is mostly covered, and portions of the Clarksville Country Club.
30.00 ft
Low lying agricultural areas along the Red River from the Kentucky State Line through Adams, past Port Royal State Park, and down to Clarksville begin to flood. This includes the Red River Valley Park where water is up to the parking area, the Porters Chapel Public Access area, The River Club golf course, and portions of the Clarksville Country Club.
3.84 ft
Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: 14 %.

RankLevelDate
149.48 ftMay 3, 2010
248.26 ftMarch 13, 1975
344.40 ftJanuary 23, 1937
443.18 ftFebruary 27, 1962
542.36 ftMay 20, 1983
642.14 ftDecember 9, 1978
741.46 ftMarch 3, 1997
840.54 ftMay 8, 1984
939.50 ftApril 5, 1968
1039.36 ftJanuary 11, 1974

Weather at the gauge

The forecast is not available right now.

Sunrise 07:01 AM Sunset 06:07 PM Daylight 11 hr, 6 min First quarter 66%

Map

Other gauges on the Red River

Gauge Level Compared with normal 24 hours Distance
Red River at DotRiver gauge, Red River 5.59 ft No reference yet −0.01 ft 13 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Sycamore Creek near Ashland CityRiver gauge, Sycamore Creek 1.49 ft Below flood stage −0.01 ft 17 mi
Cumberland River at Ashland CityRiver gauge, Cumberland River 17.16 ft Below flood stage −0.54 ft 20 mi
South Fork Little River at Highway 68-80 near HopkinsvilleRiver gauge, South Fork Little River 4.40 ft Below flood stage −0.01 ft 23 mi
South Fork Little River at Highway 68 By-Pass at HopkinsvilleRiver gauge, South Fork Little River 6.25 ft Normal +0.04 ft 26 mi
Whites Creek at Old Hickory Blvd at Whites CreekRiver gauge, Whites Creek 2.61 ft Below flood stage ±0 27 mi
Mansker Creek at Highway 41 near MillersvilleRiver gauge, Mansker Creek 2.04 ft Below flood stage −0.01 ft 27 mi
Yellow Creek at Ellis MillsRiver gauge, Yellow Creek 3.14 ft Low ±0 28 mi
Whites Creek near BordeauxRiver gauge, Whites Creek 4.27 ft Below flood stage −0.01 ft 29 mi

Questions and answers

What is flood stage for the Red River at Port Royal?

The official flood stage is 30.00 ft. The level is currently 26.16 ft below it.

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 Red River at Port Royal today?

On Oct 20, 2026, 02:30 AM CDT, the water level was 3.84 ft. Down 0.08 ft over the last 24 hours.

Is Red River at Port Royal rising or falling?

Down 0.08 ft over the last 24 hours.

Is the level of Red River at Port Royal normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Red River at Port Royal?

The highest level on record is 49.48 ft on May 3, 2010.

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.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:03436100 (Agency page)
Coordinates
36.55472, -87.14194 (WGS84)
Vertical datum
NGVD29
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 3.84 ft 2026-10-20 07:30 Provisional
Flow 115 cfs 2026-10-20 07:30 Provisional

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How to cite

U.S. Geological Survey: Red River at Port Royal (usgs:03436100). Accessed October 20, 2026 via Nivelmap, https://nivelmap.com/en/united-states/tennessee/red-river-at-port-royal

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.