39°20'28.5", long 77°38'02.7", Frederick County, MD,
Hydrologic Unit 02070008, on left bank, at downstream side of highway
Jefferson Pike and 0.9 mi northwest of Rosemont. DRAINAGE AREA.--4.16 mi2, from automated delineation
using 30-meter National Elevation Dataset, digital elevation model
data, dated December 2011. PERIOD OF RECORD.--October 2016 to current year. GAGE.--Water-stage recorder, water quality monitor, crest-stage
gage, and velocity meter. Datum of gage is 413.26 ft above North
American Vertical Datum
of 1988. October 1, 2016 to January 18, 2019, at site 80 ft downstream
on right bank at gage datum 2.0 ft higher. May 23, 2019 to present, at
current location and datum. REMARKS.--U.S. Geological Survey water-data telemeter at
station. COOPERATION.--Funding for the operation of this station is
provided by the Maryland State Highway Administration and the U. S.
Notice: August 28 - December 17, 2018: The on-site velocity
meter raised to avoid the migrating channel bed. During this period the
sensor will only report
water velocity when gage height is greater than 2.1 feet.
This station managed by the MD-DE-DC Water Science Center Baltimore office.