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Hydrograph River at a Glance Download
East Branch Delaware River at Harvard Stage (ft)Flow (kcfs)Observed: 5.84 ft at 7:15PM Mar 26, 2024Observed: 5.85 ft at 7:30PM Mar 26, 2024Observed: 5.85 ft at 7:45PM Mar 26, 2024Highest Observation: 5.86 ft at 8:00PM Mar 26, 2024Observed: 5.85 ft at 8:15PM Mar 26, 2024Observed: 5.84 ft at 8:30PM Mar 26, 2024Observed: 5.84 ft at 8:45PM Mar 26, 2024Observed: 5.84 ft at 9:00PM Mar 26, 2024Observed: 5.84 ft at 9:15PM Mar 26, 2024Observed: 5.83 ft at 9:30PM Mar 26, 2024Observed: 5.83 ft at 9:45PM Mar 26, 2024Observed: 5.82 ft at 10:00PM Mar 26, 2024Observed: 5.82 ft at 10:15PM Mar 26, 2024Observed: 5.81 ft at 10:30PM Mar 26, 2024Observed: 5.8 ft at 10:45PM Mar 26, 2024Observed: 5.8 ft at 11:00PM Mar 26, 2024Observed: 5.8 ft at 11:15PM Mar 26, 2024Observed: 5.8 ft at 11:30PM Mar 26, 2024Observed: 5.8 ft at 11:45PM Mar 26, 2024Observed: 5.8 ft at 12:00AM Mar 27, 2024Observed: 5.79 ft at 12:15AM Mar 27, 2024Observed: 5.79 ft at 12:30AM Mar 27, 2024Observed: 5.79 ft at 12:45AM Mar 27, 2024Observed: 5.78 ft at 1:00AM Mar 27, 2024Observed: 5.78 ft at 1:15AM Mar 27, 2024Observed: 5.77 ft at 1:30AM Mar 27, 2024Observed: 5.77 ft at 1:45AM Mar 27, 2024Observed: 5.76 ft at 2:00AM Mar 27, 2024Observed: 5.76 ft at 2:15AM Mar 27, 2024Observed: 5.77 ft at 2:30AM Mar 27, 2024Observed: 5.77 ft at 2:45AM Mar 27, 2024Observed: 5.76 ft at 3:00AM Mar 27, 2024Observed: 5.76 ft at 3:15AM Mar 27, 2024Observed: 5.75 ft at 3:30AM Mar 27, 2024Observed: 5.76 ft at 3:45AM Mar 27, 2024Observed: 5.75 ft at 4:00AM Mar 27, 2024Observed: 5.75 ft at 4:15AM Mar 27, 2024Observed: 5.74 ft at 4:30AM Mar 27, 2024Observed: 5.74 ft at 4:45AM Mar 27, 2024Observed: 5.73 ft at 5:00AM Mar 27, 2024Observed: 5.73 ft at 5:15AM Mar 27, 2024Observed: 5.72 ft at 5:30AM Mar 27, 2024Observed: 5.72 ft at 5:45AM Mar 27, 2024Observed: 5.71 ft at 6:00AM Mar 27, 2024Observed: 5.72 ft at 6:15AM Mar 27, 2024Observed: 5.71 ft at 6:30AM Mar 27, 2024Observed: 5.7 ft at 6:45AM Mar 27, 2024Observed: 5.71 ft at 7:00AM Mar 27, 2024Observed: 5.71 ft at 7:15AM Mar 27, 2024Observed: 5.71 ft at 7:30AM Mar 27, 2024Observed: 5.7 ft at 7:45AM Mar 27, 2024Observed: 5.7 ft at 8:00AM Mar 27, 2024Observed: 5.7 ft at 8:15AM Mar 27, 2024Observed: 5.7 ft at 8:30AM Mar 27, 2024Observed: 5.69 ft at 8:45AM Mar 27, 2024Observed: 5.69 ft at 9:00AM Mar 27, 2024Observed: 5.69 ft at 9:15AM Mar 27, 2024Observed: 5.69 ft at 9:30AM Mar 27, 2024Observed: 5.69 ft at 9:45AM Mar 27, 2024Observed: 5.68 ft at 10:00AM Mar 27, 2024Observed: 5.68 ft at 10:15AM Mar 27, 2024Observed: 5.68 ft at 10:30AM Mar 27, 2024Observed: 5.67 ft at 10:45AM Mar 27, 2024Observed: 5.67 ft at 11:00AM Mar 27, 2024Observed: 5.66 ft at 11:15AM Mar 27, 2024Observed: 5.66 ft at 11:30AM Mar 27, 2024Observed: 5.66 ft at 11:45AM Mar 27, 2024Observed: 5.65 ft at 12:00PM Mar 27, 2024Observed: 5.66 ft at 12:15PM Mar 27, 2024Observed: 5.65 ft at 12:30PM Mar 27, 2024Observed: 5.65 ft at 12:45PM Mar 27, 2024Observed: 5.65 ft at 1:00PM Mar 27, 2024Observed: 5.65 ft at 1:15PM Mar 27, 2024Observed: 5.65 ft at 1:30PM Mar 27, 2024Observed: 5.66 ft at 1:45PM Mar 27, 2024Observed: 5.65 ft at 2:00PM Mar 27, 2024Observed: 5.64 ft at 2:15PM Mar 27, 2024Observed: 5.65 ft at 2:30PM Mar 27, 2024Observed: 5.65 ft at 2:45PM Mar 27, 2024Observed: 5.65 ft at 3:00PM Mar 27, 2024Observed: 5.65 ft at 3:15PM Mar 27, 2024Observed: 5.65 ft at 3:30PM Mar 27, 2024Observed: 5.65 ft at 3:45PM Mar 27, 2024Observed: 5.64 ft at 4:00PM Mar 27, 2024Observed: 5.65 ft at 4:15PM Mar 27, 2024Observed: 5.65 ft at 4:30PM Mar 27, 2024Observed: 5.65 ft at 4:45PM Mar 27, 2024Observed: 5.66 ft at 5:00PM Mar 27, 2024Observed: 5.65 ft at 5:15PM Mar 27, 2024Observed: 5.65 ft at 5:30PM Mar 27, 2024Observed: 5.67 ft at 5:45PM Mar 27, 2024Observed: 5.67 ft at 6:00PM Mar 27, 2024Observed: 5.67 ft at 6:15PM Mar 27, 2024Observed: 5.68 ft at 6:30PM Mar 27, 2024Observed: 5.68 ft at 6:45PM Mar 27, 2024Observed: 5.69 ft at 7:00PM Mar 27, 2024Observed: 5.69 ft at 7:15PM Mar 27, 2024Observed: 5.69 ft at 7:30PM Mar 27, 2024Observed: 5.7 ft at 7:45PM Mar 27, 2024Observed: 5.71 ft at 8:00PM Mar 27, 2024Observed: 5.71 ft at 8:15PM Mar 27, 2024Observed: 5.7 ft at 8:30PM Mar 27, 2024Observed: 5.7 ft at 8:45PM Mar 27, 2024Observed: 5.7 ft at 9:00PM Mar 27, 2024Observed: 5.7 ft at 9:15PM Mar 27, 2024Observed: 5.7 ft at 9:30PM Mar 27, 2024Observed: 5.71 ft at 9:45PM Mar 27, 2024Observed: 5.7 ft at 10:00PM Mar 27, 2024Observed: 5.7 ft at 10:15PM Mar 27, 2024Observed: 5.71 ft at 10:30PM Mar 27, 2024Observed: 5.71 ft at 10:45PM Mar 27, 2024Observed: 5.7 ft at 11:00PM Mar 27, 2024Observed: 5.7 ft at 11:15PM Mar 27, 2024Observed: 5.71 ft at 11:30PM Mar 27, 2024Observed: 5.71 ft at 11:45PM Mar 27, 2024Observed: 5.71 ft at 12:00AM Mar 28, 2024Observed: 5.72 ft at 12:15AM Mar 28, 2024Observed: 5.71 ft at 12:30AM Mar 28, 2024Observed: 5.7 ft at 12:45AM Mar 28, 2024Observed: 5.71 ft at 1:00AM Mar 28, 2024Observed: 5.71 ft at 1:15AM Mar 28, 2024Observed: 5.71 ft at 1:30AM Mar 28, 2024Observed: 5.7 ft at 1:45AM Mar 28, 2024Observed: 5.7 ft at 2:00AM Mar 28, 2024Observed: 5.7 ft at 2:15AM Mar 28, 2024Observed: 5.7 ft at 2:30AM Mar 28, 2024Observed: 5.7 ft at 2:45AM Mar 28, 2024Observed: 5.7 ft at 3:00AM Mar 28, 2024Observed: 5.7 ft at 3:15AM Mar 28, 2024Observed: 5.69 ft at 3:30AM Mar 28, 2024Observed: 5.7 ft at 3:45AM Mar 28, 2024Observed: 5.69 ft at 4:00AM Mar 28, 2024Observed: 5.69 ft at 4:15AM Mar 28, 2024Observed: 5.69 ft at 4:30AM Mar 28, 2024Observed: 5.7 ft at 4:45AM Mar 28, 2024Observed: 5.7 ft at 5:00AM Mar 28, 2024Observed: 5.69 ft at 5:15AM Mar 28, 2024Observed: 5.69 ft at 5:30AM Mar 28, 2024Observed: 5.69 ft at 5:45AM Mar 28, 2024Observed: 5.7 ft at 6:00AM Mar 28, 2024Observed: 5.69 ft at 6:15AM Mar 28, 2024Observed: 5.69 ft at 6:30AM Mar 28, 2024Observed: 5.69 ft at 6:45AM Mar 28, 2024Observed: 5.69 ft at 7:00AM Mar 28, 2024Observed: 5.69 ft at 7:15AM Mar 28, 2024Observed: 5.68 ft at 7:30AM Mar 28, 2024Observed: 5.69 ft at 7:45AM Mar 28, 2024Observed: 5.68 ft at 8:00AM Mar 28, 2024Observed: 5.69 ft at 8:15AM Mar 28, 2024Observed: 5.69 ft at 8:30AM Mar 28, 2024Observed: 5.68 ft at 8:45AM Mar 28, 2024Observed: 5.68 ft at 9:00AM Mar 28, 2024Observed: 5.68 ft at 9:15AM Mar 28, 2024Observed: 5.67 ft at 9:30AM Mar 28, 2024Observed: 5.67 ft at 9:45AM Mar 28, 2024Observed: 5.68 ft at 10:00AM Mar 28, 2024Observed: 5.67 ft at 10:15AM Mar 28, 2024Observed: 5.67 ft at 10:30AM Mar 28, 2024Observed: 5.67 ft at 10:45AM Mar 28, 2024Observed: 5.67 ft at 11:00AM Mar 28, 2024Observed: 5.67 ft at 11:15AM Mar 28, 2024Observed: 5.66 ft at 11:30AM Mar 28, 2024Observed: 5.67 ft at 11:45AM Mar 28, 2024Observed: 5.67 ft at 12:00PM Mar 28, 2024Observed: 5.66 ft at 12:15PM Mar 28, 2024Observed: 5.66 ft at 12:30PM Mar 28, 2024Observed: 5.66 ft at 12:45PM Mar 28, 2024Observed: 5.65 ft at 1:00PM Mar 28, 2024Observed: 5.66 ft at 1:15PM Mar 28, 2024Observed: 5.65 ft at 1:30PM Mar 28, 2024Observed: 5.64 ft at 1:45PM Mar 28, 2024Observed: 5.65 ft at 2:00PM Mar 28, 2024Observed: 5.64 ft at 2:15PM Mar 28, 2024Observed: 5.64 ft at 2:30PM Mar 28, 2024Observed: 5.65 ft at 2:45PM Mar 28, 2024Observed: 5.65 ft at 3:00PM Mar 28, 2024Observed: 5.64 ft at 3:15PM Mar 28, 2024Observed: 5.64 ft at 3:30PM Mar 28, 2024Observed: 5.64 ft at 3:45PM Mar 28, 2024Observed: 5.63 ft at 4:00PM Mar 28, 2024Observed: 5.63 ft at 4:15PM Mar 28, 2024Observed: 5.63 ft at 4:30PM Mar 28, 2024Observed: 5.63 ft at 4:45PM Mar 28, 2024Observed: 5.63 ft at 5:00PM Mar 28, 2024Observed: 5.64 ft at 5:15PM Mar 28, 2024Observed: 5.63 ft at 5:30PM Mar 28, 2024Observed: 5.63 ft at 5:45PM Mar 28, 2024Highest Forecast: 5.5 ft 8:00PM Mar 28, 2024Forecast: 5.4 ft 2:00AM Mar 29, 2024Forecast: 5.4 ft 8:00AM Mar 29, 2024Forecast: 5.3 ft 2:00PM Mar 29, 2024Forecast: 5.1 ft 8:00PM Mar 29, 2024Forecast: 5 ft 2:00AM Mar 30, 2024Forecast: 4.9 ft 8:00AM Mar 30, 2024Forecast: 4.8 ft 2:00PM Mar 30, 2024Forecast: 4.7 ft 8:00PM Mar 30, 2024Forecast: 4.6 ft 2:00AM Mar 31, 2024Forecast: 4.5 ft 8:00AM Mar 31, 2024USGS--Water Resources of the United StatesHVDN6(plotting HGIRG) Graph Created (7:00PM Mar 28, 2024)ObservedForecast (issued 9:50AM Mar 28)Latest observed value: 5.63 ft at 5:45 PM EDT 28-Mar-2024. Flood Stage is 10 ft
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About this graph
Tabular Data (UTC)
Tabular Data (EDT)
XML Data
RSS Files
Datum: NAVD88
Metadata
NOTE: Forecasts for the East Branch Delaware River at Harvard are issued routinely year-round.
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Upstream Gauge - at Downsville below Pepacton Dam Upstream Gauge Downstream Gauge Downstream Gauge - at Fishs Eddy
Flood Categories (in feet)
Major Flood Stage: 15
Moderate Flood Stage: 12
Flood Stage: 10
Action Stage: 7
Low Stage (in feet): -9999

Historic Crests
(1) 16.93 ft on 09/22/1938
(2) 16.61 ft on 06/28/2006
(3) 16.32 ft on 04/03/2005
(4) 16.07 ft on 09/19/2004
(5) 15.75 ft on 03/22/1948
Show More Historic Crests

(P): Preliminary values subject to further review.

Recent Crests
(1) 12.76 ft on 04/08/2022
(2) 14.73 ft on 09/08/2011
(3) 13.31 ft on 08/29/2011
(4) 10.29 ft on 03/24/2010
(5) 11.69 ft on 03/09/2008
Show More Recent Crests

(P): Preliminary values subject to further review.

Low Water Records
Currently none available.

For more information on your flood risk go to www.floodsmart.gov.

Zoom Level:14
KML Image
Gauge LocationGauge Map Marker
Disclaimer
Latitude/Longitude Disclaimer: The gauge location shown in the above map is the approximate location based on the latitude/longitude coordinates provided to the NWS by the gauge owner.
Flood Impacts & Photos Collapse
If you notice any errors in the below information, please contact our Webmaster
24.4 FEMA flood insurance maps indicate that a river level of 24.4 feet corresponds to the water elevation associated witih the 0.2 percent (500 year) flood risk zone. If your property is determined to be in this zone, then it is at high risk for flooding during a record flood event. This magnitude of flooding has a 0.2 percent chance of occurring in any year.
19.6 FEMA flood insurance maps indicate that a river level at 19.6 feet corresponds to the water elevation associated with the 1 percent (100 year) flood risk zone. If your property is determined to be in this zone, then it is at high risk for flooding during a record flood event. A flood of this magnitude has a 1 percent chance of occurring in any year.
16.93 This level, from September 1938, is the historic flood of record prior to the construction of Downsville Dam.
16.61 This is the flood level from June, 2006 and is the modern flood of record. Widespread flooding, resulting in catastrophic property and infrastructure damage, occurred from Downsville to East Branch.
16.32 This is the flood level from April, 2005 and is considered to be major flooding.
16.07 This is the flood level from September, 2004 and is considered to be major flooding.
15 Major flood stage. Above 15 feet, river flooding is widespread from Downsville to East Branch with several residential and commercial properties affected between Harvard Road and Route 30. Significant backwater flooding from Baxter Brook is also likely. River water crosses O and W Road between East Branch and Fishs Eddy. Evacuations typically begin throughout the Town of Colchester.
14.73 This is the flood level from the remnants of Tropical Storm Lee in September, 2011 and is considered to be moderate flooding.
13.31 This is the flood level from the remnants of Hurricane Irene in August, 2011 and is considered to be moderate flooding.
12.63 This is the flood level from January, 1996 and is considered to be moderate flooding.
12 Moderate Flood Stage. Between 12 and 15 feet, river flooding begins at the Oxbow Campground in Harvard. Significant backwater flooding from Baxter Brook is also likely. Residences along Harvard Road and Route 30 from Harvard to East Branch are threatened.
11 Harvard Road, Fox Lane and Harvard Cemetery Road become impassable in spots due to increasing river flooding. Camp cottage properties along Route 30 flood.
10 Minor flood stage. Low lying roads along the river from Downsville to East Branch begin to flood.
7 Island Road in the Town of Colchester is normally closed at this level.
About This Location Collapse

Latitude: 42.024722° N, Longitude: 75.120278° W, Horizontal Datum: NAD83/WGS84

River Stage
Reference Frame
Gauge Height Flood Stage Uses
NWS stage 0 ft 10 ft Interpreting hydrographs and NWS watch, warnings, and forecasts, and inundation maps
Vertical Datum Elevation
(gauge height = 0)
Elevation
(gauge height = flood stage)
Elevation information source
NAVD88 1006.86 ft 1016.86 ft Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 1007.41 ft 1017.41 ft Older USGS topographic maps, NGVD29 benchmarks
MSL Not Available Not Available Older USGS topographic maps, MSL benchmarks
Other Not Available Not Available  

Current/Historical Observations:

Additional Information Collapse
Potential River Levels - Used to
Potential River Levels
Used to Estimate the Chance of Flooding and the Range of Possible River Levels
10 Day (HEFS) 7 Day (NAEFS) 7 Day (GEFS)
HEFS Ensemble NAEFS Ensemble GEFS Ensemble

Note: Use the official hydrograph at the top of this web page for river levels within the next 72 Hours.

Click individual graphics to enlarge.

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Hydrologic Resources Additional Resources
Collaborative Agencies Collapse
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.
NWS Information
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(607) 729-1597
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Page last modified: 2-Nov-2020 7:30 PM
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