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Hydrograph River at a Glance Download Weekly Chance of
Exceeding Levels		 Chance of Exceeding Levels
During Entire Period
Mohawk River at Delta Dam Observed crest: 537.55 ft at 8:00am Nov 21 Observed: 537.55 ft at 8:00am Nov 21 Observed: 536.8 ft at 8:00am Nov 22 Observed: 536 ft at 7:00am Nov 23 Observed: 535.2 ft at 7:00am Nov 24 Forecast: 535.81 ft at 1:00pm Nov 23 Forecast: 535.54 ft at 7:00pm Nov 23 Forecast: 535.22 ft at 1:00am Nov 24 Forecast: 534.87 ft at 7:00am Nov 24 Forecast: 534.56 ft at 1:00pm Nov 24 Forecast: 534.17 ft at 7:00pm Nov 24 Forecast: 533.88 ft at 1:00am Nov 25 Forecast: 533.58 ft at 7:00am Nov 25 Forecast: 533.38 ft at 1:00pm Nov 25 Graph Created (7:45am Nov 24, 2009) Observed Forecast (issued 10:40am Nov 23) USGS--Water Resources of the United States DDMN6 (plotting HPIRZ) Gage 0 Datum: n/a Latest observed value: 535.2 ft at 7:00 AM EST 24-Nov-2009. Flood Stage is 551.5 ft. Pool (ft)
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NOTE: Automated gauge readings are unavailable, readings taken manually.

NOTE: Forecasts for the Mohawk River at Delta Dam are issued routinely year-round.

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Downstream Gauge Downstream Gauge - at Utica

Flood Categories (in feet)
Major Flood Stage:554
Moderate Flood Stage:553
Flood Stage:551.5
Action Stage:549

Historical Crests
(1) 553.25 ft on 05/24/2004
(2) 552.80 ft on 01/09/1998
(2) 552.80 ft on 04/17/1994
(2) 552.80 ft on 06/22/1972

Low Water Records
(1) 492.0 ft on 03/02/1959
(2) 520.6 ft on 04/02/1971
(3) 522.2 ft on 03/15/1978
(4) 523.0 ft on 11/27/1980
(5) 523.3 ft on 02/24/1980

 Mohawk River at Delta Dam location map

Flood Impacts Collapse
553.3 This pool elevation equals the record. Flooding downstream between dam and Rome.
552.5 Two and a half feet of water are spilling over and the river begins to overflow its banks downstream.
552.0 Two feet of water are spilling over and there is minor floding of lowlands below Lake Delta.
551.0 A foot of water is spilling over.
550.5 Six inches of water are spilling over.
550.0 Water is level with the spillway. When the lake rises above this level the gates are usually closed.

About This Location Collapse
Latitude: 43.270000° N, Longitude: 75.430000° W, Horizontal Datum: NAD83

River Stage
Reference Frame		 Gauge Height Flood Stage Uses
NWS stage 0 ft 551.5 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 N/A N/A Survey grade GPS equipment, FEMA flood plain maps, newer USGS topographic maps
NGVD 29 N/A N/A Older USGS topographic maps, NGVD29 benchmarks
MSL N/A N/A Older USGS topographic maps, MSL benchmarks
Other NULL NULL  

Other Data Sources:
U.S. Geological Survey (USGS) Data and Site Info for Delta Dam

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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.

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Albany, NY 12203-3650
(518) 435-9580
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