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Streamflow Measurements for the Nation


USGS 01644020 BLACK BRANCH TRIB NO 2 NEAR WATSON, VA


Loudoun County, Virginia
Hydrologic Unit Code 02070008
Latitude  39°00'44", Longitude  77°34'45" NAD27
Drainage area 0.17  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)
121983-09-21 -- ----Yes/USGS0.01 Unspecified NONE1Imported Channel 1UNSPother 0.01 UNSPUNSPUNSPunknUNSPUNSPUNSP
111983-09-05 -- ----Yes/USGS0.01 Unspecified NONE1Imported Channel 1UNSPother 0.01 UNSPUNSPUNSPunknUNSPUNSPUNSP
101983-08-26 -- ----Yes/USGS0.02 Unspecified NONE1Imported Channel 1UNSPother 0.02 UNSPUNSPUNSPunknUNSPUNSPUNSP
91983-07-29 -- ----Yes/USGS0.02 Unspecified NONE1Imported Channel 1UNSPother 0.02 UNSPUNSPUNSPunknUNSPUNSPUNSP
81983-06-26 -- ----Yes/USGS0.08 Unspecified NONE1Imported Channel 1UNSPother 0.08 UNSPUNSPUNSPunknUNSPUNSPUNSP
71983-06-13 -- ----Yes/USGS0.08 Unspecified NONE1Imported Channel 1UNSPother 0.08 UNSPUNSPUNSPunknUNSPUNSPUNSP
61983-06-04 -- ----Yes/USGS0.17 Unspecified NONE1Imported Channel 1UNSPother 0.17 UNSPUNSPUNSPunknUNSPUNSPUNSP
51983-05-22 -- ----Yes/USGS0.41 Unspecified NONE1Imported Channel 1UNSPother 0.41 UNSPUNSPUNSPunknUNSPUNSPUNSP
41983-05-08 -- ----Yes/USGS0.26 Unspecified NONE1Imported Channel 1UNSPother 0.26 UNSPUNSPUNSPunknUNSPUNSPUNSP
31983-05-01 -- ----Yes/USGS0.37 Unspecified NONE1Imported Channel 1UNSPother 0.37 UNSPUNSPUNSPunknUNSPUNSPUNSP
21983-04-17 -- ----Yes/USGS0.67 Unspecified NONE1Imported Channel 1UNSPother 0.67 UNSPUNSPUNSPunknUNSPUNSPUNSP
11983-04-09 -- ----Yes/USGS0.32 Unspecified NONE1Imported Channel 1UNSPother 0.32 UNSPUNSPUNSPunknUNSPUNSPUNSP