Warning: Javascript must be enabled to use all the features on this page!


Page Loading - Please Wait...

Click to hideNews Bulletins
! This page will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline.

USGS 03047000 Loyalhanna Creek at Loyalhanna Dam, PA

  Stream Site

DESCRIPTION:
Latitude 40°27'32",   Longitude 79°26'58"   NAD83
Westmoreland County, Pennsylvania, Hydrologic Unit 05010008
Drainage area: 290 square miles
Datum of gage: 870.18 feet above   NAVD88.
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     (availability statement)    2007-10-01  2026-01-21  
 Daily Data
    Temperature, water, degrees Celsius  2007-08-03  2026-01-20  19410 
    Discharge, cubic feet per second  1939-10-01  2026-01-20  24944 
 Daily Statistics 
    Temperature, water, degrees Celsius  2007-08-03  2025-11-18 6418 
    Discharge, cubic feet per second  1939-10-01  2025-01-07 24571 
 Monthly Statistics 
    Temperature, water, degrees Celsius  2007-08  2025-11  
    Discharge, cubic feet per second  1939-10  2025-01  
 Annual Statistics 
    Temperature, water, degrees Celsius  2007  2026  
    Discharge, cubic feet per second  1940  2025  
 Peak streamflow 1940-03-31  2024-04-05  67 
 Field measurements 1937-01-25  2025-11-19  796 
 Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP) 1975-11-06  1976-07-21  7 
 Water-Year Summary 2006  2025  20 
 Revisions  Loading...
OPERATION:
Record for this site is maintained by the USGS Pennsylvania Water Science Center
Email questions about this site to Pennsylvania Water Science Center Water-Data Inquiries