Rivers in North Carolina

Tar River at Louisburg

Franklin County, North CarolinaNWS LOUN7USGS 02081747Raleigh office

Below flood stage
3.62ftStage

Observed Mon, Sep 28, 5:45 AM EDT

Flood stage
20.00 ft
Forecast crest
3.60 ftMon, Sep 28, 8:00 AM EDT
Record crest
26.05 ft1999

Open the live map with the river flood outlook

Flood stages and impacts

CategoryStage
Major flood23.00 ft
Moderate flood22.00 ft
Minor flood20.00 ft
Action20.00 ft
  1. 37.00 ftWater reaches the road surface of the US401 bridge.
  2. 34.00 ftSouth Main Street bridge is flooded to a depth of approximately 5 feet.
  3. 29.00 ftWater reaches the road level of the Main Street bridge. Flooding reaches businesses on Main and Nash Streets. The grounds of the Louisburg wastewater treatment plant (near the mouth of Fox swamp) is covered with water.
  4. 25.00 ftSignificant flooding at businesses along Johnson, Court, Elm, and Short Streets.
  5. 23.00 ftMajor flooding begins. Homes and businesses along Johnson Street flood.
  6. 22.00 ftModerate flooding begins. Flooding begins in Pruitt and Shannon Villages on the east side of town.
  7. 20.00 ftMinor flooding begins. Banks overflow at Main Street. River Bend Park is flooded and storm drains are inundated along the river.
  8. 18.00 ftBankfull in the vicinity of Main Street. Minor flooding begins in River Bend Park 0.1 miles upstream of Main Street.

Flood outlook

Chance of flooding, September to November

CategoryChance
Minor floodingUnder 5%
Moderate floodingUnder 5%
Major floodingUnder 5%

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 15, 2026.

Crest history

25 crests on NOAA’s list since 1974.

#DateStage
1September 17, 199926.05 ft
2September 7, 199625.34 ft
3April 28, 197824.36 ft
4October 10, 201623.25 ft
5August 9, 202423.23 ft
6July 16, 197523.00 ft
7April 26, 201722.90 ft
8November 14, 201822.03 ft
9October 13, 200221.77 ft
10May 17, 201421.68 ft
11January 5, 199221.57 ft
12March 2, 198721.24 ft
13November 23, 198521.16 ft
14November 13, 198021.05 ft
15September 19, 201820.98 ft
16March 31, 200120.75 ft
17March 7, 198420.69 ft
18February 23, 198920.63 ft
19December 26, 202020.59 ft
20September 9, 197419.85 ft
21June 12, 198219.57 ft
22March 31, 199118.88 ft
23February 3, 198518.79 ft
24October 13, 201818.43 ft
25April 4, 199018.29 ft

Most recent crests

  • August 9, 2024: 23.23 ft
  • December 26, 2020: 20.59 ft
  • November 14, 2018: 22.03 ft
  • October 13, 2018: 18.43 ft
  • September 19, 2018: 20.98 ft
  • April 26, 2017: 22.90 ft
  • October 10, 2016: 23.25 ft
  • May 17, 2014: 21.68 ft
  • October 13, 2002: 21.77 ft
  • March 31, 2001: 20.75 ft

Nearby

Upstream, downstream and the gauges around this one.

What this means

Forecasts by the Southeast River Forecast Center. Forecasts are issued routinely year-round.

Sources

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.