USGS 01354500 MOHAWK RIVER AT FREEMAN'S BRIDGE AT SCHENECTADY NY

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text

 

> Site Information
LOCATION.--Lat 42°49'49.9", long 73°55'50.7" referenced to North American Datum of 1983, Schenectady County, NY, Hydrologic Unit 02020004, on left bank 12 ft downstream from bridge on Freeman's Bridge Road, 1.2 mi north of Schenectady.
DRAINAGE AREA.--3,310 mi².
PERIOD OF RECORD.--Occasional low-flow and/or miscellaneous discharge measurements, water years 1899-1901, 1920, 1953, 1966-67. August 2011 to current year.
GAGE.--Water-stage recorder and acoustic velocity meter. Datum of gage is 200.00 ft above NGVD of 1929 and 199.46 ft above NAVD of 1988. Prior to Oct. 1, 2013, datum of gage was 199.74 ft above NGVD of 1929, not 200.00 ft above NGVD of 1929 as previously published.
REMARKS.--Considerable regulation of stage by Lock 8 on the Erie (Barge) Canal about 3.8 mi upstream and Vischer Ferry Dam hydroelectric facility about 6.9 mi downstream.
Water Years 2014-22: Records fair except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge 130,000 ft³/s Aug. 29, 2011, gage height 26.15 ft, present datum; minimum discharge not determined; minimum gage height, 7.92 ft, Dec. 31, 2017, result of freezeup.
EXTREMES OUTSIDE PERIOD OF RECORD.--An extreme flood occurred sometime from 1860-65 with a depth of 12 ft on the Cohoes dam and a peak discharge estimated to be at least 200,000 ft³/s (from New York State Museum Bulletin 85).
> Rating Information
This station managed by the NY Water Science Center Troy.

Available Parameters Available Period
  
2011-08-06  2024-03-28
2011-01-06  2024-03-28
2023-11-29  2024-03-28
2023-11-29  2024-03-28







 (7)
 

  -- or --

 


 

Summary of all available data for this site
Instantaneous-data availability statement


Discharge, cubic feet per second

Most recent instantaneous value: 23100 03-28-2024   12:45 EST
Graph of  Discharge, cubic feet per second

Add up to 2 more sites and replot for "Discharge, cubic feet per second"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages


Daily discharge, cubic feet per second -- statistics for Mar 28 based on 12 water years of record more
Min
(2014)
25th
percen-
tile
Median Mean 75th
percen-
tile
Max
(2023)
Most Recent
Instantaneous
Value Mar 28
4390 5570 8600 9570 14000 16400 23100


Gage height, feet

Most recent instantaneous value: 13.17 03-28-2024   12:55 EST
Graph of  Gage height, feet

Add up to 2 more sites and replot for "Gage height, feet"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages




Mean water velocity for discharge computation, feet per second

Most recent instantaneous value: 3.00 03-28-2024   12:45 EST
Graph of  Mean water velocity for discharge computation, feet per second

Add up to 2 more sites and replot for "Mean water velocity for discharge computation, feet per second"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages




Difference between observed and predicted water surface elevation, feet

Most recent instantaneous value: 0.12 03-28-2024   12:45 EST
Graph of  Difference between observed and predicted water surface elevation, feet

Add up to 2 more sites and replot for "Difference between observed and predicted water surface elevation, feet"

?
 


Create presentation-quality / stand-alone graph.   Subscribe to WaterAlert      

See this graph on the Monitoring Location Pages