STATION.--01559000 JUNIATA RIVER AT HUNTINGDON, PA
LOCATION.--Lat 40`29'05", long 78`01'09", Huntingdon County, Hydrologic Unit 02050302, on right bank 170 ft downstream from Smithfield Bridge on State Highway 26 at Huntingdon, and 0.8 mi upstream from Standing Stone Creek.
DRAINAGE AREA.--816 square miles.
PERIOD OF RECORD.--October 1941 to current year. Gage-height records collected in this vicinity for the period May 1895 to December 1938 are contained in reports of U.S. Weather Bureau. Prior to October 1950, published as Frankstown Branch Juniata River at Huntingdon.
GAGE.--Water-stage recorder, crest-stage gage, and heated tipping bucket precipitation gage. Datum of gage is 599.69 ft above National Geodetic Vertical Datum of 1929.
COOPERATION.---Station established and maintained by the U.S. Geological Survey in cooperation with the U.S. Army Corps of Engineers, Baltimore District, and the Pennsylvania Department of Environmental Protection.
REMARKS.--Flow slightly regulated September 1941 to June 1972. Since December 15, 1985 low flows slightly regulated by Warrior Ridge Hydroelectric Plant, 4 mi upstream (reservoir capacity 400 acre-ft).

The 1-hour precipitation data for this station are temporary and will only be displayed for 120 days. Time series of 1-hour or cumulative daily values will NOT be available for retrieval following the 120-day display period. Although the instrumentation is calibrated at least once a year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.

GAGE HEIGHTS OF IMPORTANCE.-
Supplied by USGS: Maximum recordable gage height (stage sensor operational limit) - 23.9 ft; Data transmitter operational limit - 23.9 ft;
Supplied by NWS: Action stage-9 ft; Flood stage-12 ft, high water will begin to affect the Ames Plaza on the right bank or south bank; Moderate flood stage-13 ft, several homes located outside of the levee system will flood; Major flood stage-15 ft, a number of homes outside the protective works and along Standing Stone Creek will flood; backwater on Standing Stone Creek also affects the athletic field.