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Streamflow Measurements for the Nation

! Streamflow measurement pages 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 and new pages.

USGS 01644110 SYCOLIN CREEK NEAR LEESBURG, VA
Loudoun County, Virginia
Hydrologic Unit Code 02070008
Latitude  39°04'20", Longitude  77°31'09" NAD27
Drainage area 17.0  square miles
Output formats
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Meas.
Number		   Date       Time Time
Datum		 Measurement
Used?		   Who Measuring
Agency		 Stream
flow
(ft3/s)		 Gage
Height
(ft)		 GH
Change
(ft)		 Meas.
Duration
(hr)		 Meas.
Rated		   Control Flow
Adjust.
Code 		 Channel
Number		 Channel
Name		 Meas.
type 		 Stream
flow
method 		 Velocity
method 		 Channel
flow
(ft3/s)		 Channel
width
(ft)		 Channel
area
(ft2)		 Channel
vel.
(ft/s)		 Channel
stability 		 Channel
material 		 Channel
evenness 		 Long.
vel.
desc. 		 Horz.
vel.
desc. 		 Vert.
vel.
desc. 		 Channel
loc.
code 		 Channel
loc.
dist.(ft)
132002-11-20 12:45ESTYesDWHUSGS19.0 Good NONE1Imported Channel 1WADEunspeunkno19.041.025.00.76UNSPUNSPUNSPunknUNSPUNSPUNSP
122002-08-20 13:05EDTYesDWHUSGS0.39 Fair NONE1Imported Channel 1WADEunspeunkno0.393.300.920.42UNSPUNSPUNSPunknUNSPUNSPUNSP
112002-06-26 12:30EDTYesDWHUSGS2.23 Fair NONE1Imported Channel 1WADEunspeunkno2.2316.59.160.24UNSPUNSPUNSPunknUNSPUNSPUNSP
102001-11-06 12:20ESTYesDWHUSGS2.40 Good NONE1Imported Channel 1WADEunspeunkno2.4012.56.160.39UNSPUNSPUNSPunknUNSPUNSPUNSP
91999-08-17 11:20EDTYesDWHUSGS0.85 Good NONE1Imported Channel 1WADEunspeunkno0.858.004.110.21UNSPUNSPUNSPunknUNSPUNSPUNSP
81997-09-02 11:00EDTYesDWHUSGS0.94 Fair NONE1Imported Channel 1WADEunspeunkno0.944.801.060.88UNSPUNSPUNSPunknUNSPUNSPUNSP
71997-06-25 10:30EDTYesDWHUSGS3.80 Good NONE1Imported Channel 1WADEunspeunkno3.8017.09.480.40UNSPUNSPUNSPunknUNSPUNSPUNSP
61996-09-23 12:05EDTYesDWHUSGS22.1 Good NONE1Imported Channel 1WADEunspeunkno22.145.025.90.85UNSPUNSPUNSPunknUNSPUNSPUNSP
51995-08-29 13:10EDTYesDWHUSGS1.54 Fair NONE1Imported Channel 1WADEunspeunkno1.546.301.980.78UNSPUNSPUNSPunknUNSPUNSPUNSP
41995-06-07 09:30EDTYesDWHUSGS2.33 Fair NONE1Imported Channel 1WADEunspeunkno2.3316.013.40.17UNSPUNSPUNSPunknUNSPUNSPUNSP
31994-06-07 11:20EDTYesDWHUSGS4.65 Good NONE1Imported Channel 1WADEunspeunkno4.6522.013.30.35UNSPUNSPUNSPunknUNSPUNSPUNSP
21993-09-14 14:00EDTYesDWHUSGS0.73 Fair NONE1Imported Channel 1WADEunspeunkno0.7342.00.820.89UNSPUNSPUNSPunknUNSPUNSPUNSP
11993-07-22 12:00EDTYesDWHUSGS1.96 Good NONE1Imported Channel 1WADEunspeunkno1.968.102.600.75UNSPUNSPUNSPunknUNSPUNSPUNSP