USGS 01650500 NORTHWEST BRANCH ANACOSTIA RIVER NR COLESVILLE, MD

PROVISIONAL DATA SUBJECT TO REVISION

Click to hidestation-specific text
LOCATION.--Lat 39°03'55.9", long 77°01'45.7", Montgomery County, MD, 
   Hydrologic Unit 02070010, on right bank 250 ft downstream from culvert on Randolph Rd., 1.5 mi southwest of Colesville, 
   3 mi upstream from Burnt Mills, 10 mi upstream from Sligo Creek, and 12.5 mi upstream from confluence with Northeast
   Branch.
DRAINAGE AREA.--21.0 mi2.
PERIOD OF RECORD.--October 1923 to September 1983, November 1997 to current year. Monthly discharge only for some periods, 
   published in WSP 1302.
REVISIONS HISTORY.--WSP 1432: 1942(M), 1925-26, 1929-30(M), 1933(M), 1939(P), 1940(M), 1943-46, 1948-49(P).
   https://waterdata.usgs.gov/nwis/uv/?site_no=01650500: 2017-2020.
GAGE.--Water-stage recorder, crest-stage gage and concrete control. Datum of gage is 264.14 ft above North American 
   Vertical Datum of 1988. Prior to Apr. 22, 1932, nonrecording gages in same general vicinity at different gage datums. 
   Apr. 22, 1932 to Apr. 11, 1934, nonrecording gage at present site and gage datum.
REMARKS.--Diversions at low flow since 1962 for irrigation of golf courses upstream from station. 
   Records include pumpage from the Patuxent River to augment water supply for Washington Suburban Sanitary 
   District, Aug. 12, 1939 to Aug. 1960. U.S. Geological Survey satellite data-collection platform at station.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 11,000 ft³/s, June 22, 1972, gage height 15.89 ft;
   minimum discharge, 0 ft³/s, Aug. 29-31, Sept. 1-12, 1966, July 18, 19, 24-31, Aug. 1-14, 18-20, 1999, Aug. 20-24, 2002.
COOPERATION.--Funding for the operation of this station is provided by the Maryland Department of Transportation,   
   and the U.S. Geological Survey.
Boating safety tips
This station managed by the MD-DE-DC Water Science Center Baltimore office.

Available Parameters Available Period
  
1997-11-27  2024-03-19
2007-10-01  2024-03-19







 (7)
 

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


Discharge, cubic feet per second

Most recent instantaneous value: 13.7 03-19-2024   02:45 EDT
Graph of  Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Mar 19 based on 86 water years of record more
Min
(1931)
Most Recent
Instantaneous
Value Mar 19
25th
percen-
tile
Median 75th
percen-
tile
Mean Max
(1975)
7.30 13.7 16 22 35 37 388


Gage height, feet

Most recent instantaneous value: 1.65 03-19-2024   02:45 EDT
Graph of  Gage height, feet

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