USGS - science for a changing world

New York Water Science Center

bullethome bulletinformation/data bulletprojects bulletpublications bulletdrought bulletflood bulletnawqa bulletcontact
[an error occurred while processing this directive]

Mohawk River Ice Jam Monitoring

The Mohawk River between New York State Barge Canal Locks 7 and 8 near Schenectady, NY is susceptible to ice jams during periods of river-ice break-up. Ice jams in this reach typically form at channel constrictions, bridge piers, lock and dam structures, and sections with a reduced floodplain (Foster and others, 2011). Ice jam related flooding can result from backwater associated with the jam or from water released downstream when a jam fails. Schenectady is particularly vulnerable to ice jam related flooding; Lederer and Garver (2001) estimated that 80% of historic Mohawk River floods in Schenectady have been associated with winter snowmelt and associated ice floes.

In cooperation with the New York State Department of Environmental Conservation's Mohawk River Basin Program, the New York State Power Authority, Brookfield Renewable Power, and Union College, USGS is monitoring river elevation at four streamgages between Locks 7 and 8. A web camera installed at a fifth location, between the gages, in the Stockade District of Schenectady, provides real-time images of the river during winter months.

Updates

 

  • Dec 6, 2016- A replacement web cam was installed today, we should be back online with an image soon.
  • Dec 11 - The webcam is back online.
  • Dec 16 - Telemetry upgrades at all four monitoring sites are complete. Each station is now transmitting data every 15 minutes via the GOES satellite. In addition, the station at Lock 8 has been moved back to high ground following construction of a barge canal loading platform this summer. We expect to install an additional webcam at Lock 8 and improve the video stream of the current webcam soon.
  • March 2 - Second webcam installed at Lock 8 and website updated.

River Conditions - All times shown are EASTERN STANDARD

What are these plots Explanation
These plots depict the difference in water elevation between what we observe and what we predict at a gage. Predictions are based on ice-free conditions, so when there is no ice in the river to restrict flow, the values are about zero. When the values rise during winter months, this usually indicates that ice in the river between the gages is restricting streamflow and causing water to backup. A positive value can be thought of as extra water stored in the river due to ice.

It is important to keep in mind that these plots generally reflect conditions between the gages. Ice jams occuring outside of the river-reach indicated (eg. Lock 8 - Freeman's Bridge) may not be reflected in the values shown.

below the red bars showing?

Lock 8 - Freeman's Bridge

USGS Water-data graph for site 01354330

Subscribe here for WaterAlert updates for data shown in this graph.

Freeman's Bridge - Rexford

USGS Water-data graph for site 01354500


Subscribe here for WaterAlert updates for data shown in this graph.

Live Web Cams and Monitoring Locations

Select the green stars for links to web cams and orange dots for links to streamgage data.

View larger map

Rexford - Vischer's Ferry Dam


USGS Water-data graph for site 01355475
Subscribe here for WaterAlert updates for data shown in this graph.

River Elevation - All times shown are EASTERN STANDARD

Add 200 feet to the gage heights shown below to convert to feet above the National Geodetic Vertical Datum of 1929 (NGVD29). Data shown are PROVISIONAL and subject to revision.

PLEASE NOTE - NGVD29 is NOT the same as the New York State Barge Canal Datum. To approximate the NYS Barge Canal elevation add 201 feet to the values shown

Mohawk River at Lock 8 near Schenectady

USGS Water-data graph for site 01354330

Mohawk River at Freeman's Bridge at Schenectady

USGS Water-data graph for site 01354500

Mohawk River at Rexford

USGS Water-data graph for site 01355475

Mohawk River at Vischer's Ferry Dam

USGS Water-data graph for site 01356000

Emergency and Flood Information

For More Information

Contact:
Chris Gazoorian
USGS New York Water Science Center
425 Jordan Rd.
Troy, NY 12180
518-285-5615

USGS Home Water Resources Biology Geography Geology Geospatial

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://ny.water.usgs.gov/flood/MohawkIce/index.html
Page Contact Information: GS-W-NY_Comp@usgs.gov
Page Last Modified: Thursday, 02-Mar-2017 18:49:51 EST