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USGS 01094000 SOUHEGAN RIVER AT MERRIMACK, NH

  Stream Site

DESCRIPTION:
Latitude 42°51'27",   Longitude 71°30'24"   NAD27
Hillsborough County, New Hampshire, Hydrologic Unit 01070002
Drainage area: 171 square miles
Datum of gage: 159.88 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2001-10-01  2025-09-27  
 Daily Data
    Discharge, cubic feet per second  1909-07-13  2025-09-26  33314 
 Daily Statistics 
    Discharge, cubic feet per second  1909-07-13  2025-08-06 33263 
 Monthly Statistics 
    Discharge, cubic feet per second  1909-07  2025-08  
 Annual Statistics 
    Discharge, cubic feet per second  1909  2025  
 Peak streamflow 1910-03-01  2023-12-19  111 
 Field measurements 1917-01-15  2025-08-07  274 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1952-10-24  1999-06-25  124 
 Water-Year Summary 2006  2024  19 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS New Hampshire Water Science Center
Email questions about this site to New Hampshire Water Science Center Water-Data Inquiries