USGS Surface Water for USA: Peak Streamflow

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Peak Streamflow for the Nation

USGS 01647740 NORTH BRANCH ROCK CREEK NEAR ROCKVILLE, MD

Montgomery County, Maryland

Hydrologic Unit Code 02070010

Latitude 39°06'09", Longitude 77°07'12" NAD27

Drainage area 12.50 square miles

Gage datum 270 feet above NGVD29

Water Year	Date	Gage Height (feet)	Stream- flow (cfs)
1968	1968-01-24	2.37²	86.0⁶
1969	1969-08-10	2.20²	76.0⁶
1970	1970-04-15	2.58²	93.0⁶
1971	1971-02-09	2.92²	100⁶
1972	1972-06-22	6.10²	420⁶
1973	1972-12-09	2.53²	89.0⁶
1974	1974-03-31	2.64²	93.0⁶
1975	1975-09-26	5.75²	298⁶
1976	1976-01-01	3.71²	123⁶
1977	1977-04-08	1.60²	27.0⁶

Peak Gage-Height Qualification Codes.

Peak Streamflow Qualification Codes.

U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Peak Streamflow
URL: https://nwis.waterdata.usgs.gov/nwis/peak?

Page Contact Information: USGS Water Data Support Team
Page Last Modified: 2025-01-03 04:06:40 EST
0.2 0.19 nadww02