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Streamflow Measurements for the Nation


USGS 01644010 BLACK BRANCH TRIB NO 1 NEAR WATSON, VA


Loudoun County, Virginia
Hydrologic Unit Code 02070008
Latitude  39°00'27", Longitude  77°34'41" NAD27
Drainage area 0.16  square miles
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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)
181983-12-18 -- ----Yes/USGS0.05 Unspecified unkn1Imported Channel 1UNSPother 0.05 UNSPUNSPUNSPunknUNSPUNSPUNSP
171983-11-23 -- ----Yes/USGS0.05 Unspecified unkn1Imported Channel 1UNSPother 0.05 UNSPUNSPUNSPunknUNSPUNSPUNSP
161983-10-18 -- ----Yes/USGS0.01 Unspecified unkn1Imported Channel 1UNSPother 0.01 UNSPUNSPUNSPunknUNSPUNSPUNSP
151983-09-21 -- ----Yes/USGS0.01 Unspecified unkn1Imported Channel 1UNSPother 0.01 UNSPUNSPUNSPunknUNSPUNSPUNSP
141983-09-05 -- ----Yes/USGS0.01 Unspecified unkn1Imported Channel 1UNSPother 0.01 UNSPUNSPUNSPunknUNSPUNSPUNSP
131983-08-21 -- ----Yes/USGS0.01 Unspecified unkn1Imported Channel 1UNSPother 0.01 UNSPUNSPUNSPunknUNSPUNSPUNSP
121983-07-28 -- ----Yes/USGS0.00 Unspecified unkn1Imported Channel 1UNSPother 0.00 UNSPUNSPUNSPunknUNSPUNSPUNSP
111983-07-12 -- ----Yes/USGS0.02 Unspecified unkn1Imported Channel 1UNSPother 0.02 UNSPUNSPUNSPunknUNSPUNSPUNSP
101983-07-03 -- ----Yes/USGS0.06 Unspecified unkn1Imported Channel 1UNSPother 0.06 UNSPUNSPUNSPunknUNSPUNSPUNSP
91983-06-26 -- ----Yes/USGS0.09 Unspecified unkn1Imported Channel 1UNSPother 0.09 UNSPUNSPUNSPunknUNSPUNSPUNSP
81983-06-12 -- ----Yes/USGS0.09 Unspecified unkn1Imported Channel 1UNSPother 0.09 UNSPUNSPUNSPunknUNSPUNSPUNSP
71983-06-04 -- ----Yes/USGS0.11 Unspecified unkn1Imported Channel 1UNSPother 0.11 UNSPUNSPUNSPunknUNSPUNSPUNSP
61983-05-22 -- ----Yes/USGS0.37 Unspecified unkn1Imported Channel 1UNSPother 0.37 UNSPUNSPUNSPunknUNSPUNSPUNSP
51983-05-08 -- ----Yes/USGS0.11 Unspecified unkn1Imported Channel 1UNSPother 0.11 UNSPUNSPUNSPunknUNSPUNSPUNSP
41983-05-01 -- ----Yes/USGS0.23 Unspecified unkn1Imported Channel 1UNSPother 0.23 UNSPUNSPUNSPunknUNSPUNSPUNSP
31983-04-26 -- ----Yes/USGS0.46 Unspecified unkn1Imported Channel 1UNSPother 0.46 UNSPUNSPUNSPunknUNSPUNSPUNSP
21983-04-17 -- ----Yes/USGS0.57 Unspecified unkn1Imported Channel 1UNSPother 0.57 UNSPUNSPUNSPunknUNSPUNSPUNSP
11983-04-08 -- ----Yes/USGS0.30 Unspecified unkn1Imported Channel 1UNSPother 0.30 UNSPUNSPUNSPunknUNSPUNSPUNSP