Unadilla River at Rockdale, NY

River level and flood forecast · Chenango County

Normal4.9 ftas of Mon 4:30 PM

The river is 6.1 ft below flood stage (11 ft).

Forecast to rise to 5.2 ft Wed 2 PM, below the 11 ft flood stage.

Flow: 464 cubic feet per second (USGS).

The last 7 days and the forecast

2468101214TueThuSatMonWedAction 8 ftFlood 11 ftModerate 12 ftMajor 13 ftNowObserved (ft)NWS forecast

NWS forecast issued Mon, Oct 12, 2:48 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage13 ft
Moderate flood stage12 ft
Flood stage11 ft
Action stage8 ft
Record crest (September 8, 2011)14.22 ft

What floods at each level

From the National Weather Service, highest first.

  • 14.22 ftRecord flood event of september 2011. Widespread and severe flood inundation occurred to residences and businesses along the river. Millions of dollars in damage were reported.
  • 13.96 ftFlood level of June 2006. Flooding was widespread and severe with water several feet deep in many locations near the river along Route 8 from Mount Upton to Sidney.
  • 13 ftMajor flood stage. Much of Route 8 is flooded north and south of Rockdale including several residences and businesses. Flooding threatens residences in Mount Upton along Bridge Street. Damages at this stage are typically severe.
  • 12.6 ftNumerous cellars along the river are flooded.
  • 12 ftModerate flood stage. Several homes and businesses are flooded in various spots along Route 8 between Rockwells Mills and Sidney. Flooding reaches properties and residences on County Route 1 at Rockdale. Hitching Post Lane floods. Residences on County Road 1B and the lower parts of Tall Pines Campground are flooded.
  • 11 ftFlood stage. Widespread flooding of farmland occurs along the river. County Route 8 at the intersection of High Bridge Road is flooded.

Highest crests on record

  1. 14.22 ft — September 8, 2011
  2. 13.96 ft — June 29, 2006
  3. 12.98 ft — December 31, 1942
  4. 12.64 ft — March 14, 1977
  5. 12.62 ft — March 26, 1979

Recent crests: 14.22 ft (September 8, 2011) · 13.96 ft (June 29, 2006) · 11.83 ft (April 4, 2005) · 11.04 ft (April 10, 2001) · 11.81 ft (February 28, 2000)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (RCKN6); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.