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Streamflow Measurements for the Nation


USGS 01645700 DIFFICULT RUN NEAR FAIRFAX, VA
Fairfax County, Virginia
Hydrologic Unit Code 02070008
Latitude  38°52'29", Longitude  77°20'18" NAD27
Drainage area 4.36  square miles
Gage datum 310.00 feet above NGVD29
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)
201956-03-28 09:30ESTYesCWLUSGS2.391.31 Good NONE1Imported Channel 1UNSPQSCMMunkno2.3910.04.000.60UNSPUNSPUNSPunknUNSPUNSPUNSP
191955-03-06 18:10ESTYesEHOUSGS37.42.11 Good NONE1Imported Channel 1UNSPQSCMMunkno37.416.018.62.01UNSPUNSPUNSPunknUNSPUNSPUNSP
181953-09-06 16:50ESTYesEHO/JRHUSGS0.870.96 Good NONE1Imported Channel 1UNSPQSCMMunkno0.873.501.210.72UNSPUNSPUNSPunknUNSPUNSPUNSP
171953-04-29 10:15ESTYesEHOUSGS4.661.17 Good NONE1Imported Channel 1UNSPQSCMMunkno4.6610.44.131.13UNSPUNSPUNSPunknUNSPUNSPUNSP
161953-01-22 14:05ESTYesRHTUSGS5.371.50 Fair NONE1Imported Channel 1UNSPQSCMMunkno5.3711.56.900.78UNSPUNSPUNSPunknUNSPUNSPUNSP
15B1952-11-21 -- ----YesEHO/RHTUSGS4795.90 Unspecified NONE1Imported Channel 1OTHRQIDIR 479 UNSPUNSPUNSPunknUNSPUNSPUNSP
15A1952-09-01 -- ----YesEHO/RHTUSGS7837.40 Unspecified NONE1Imported Channel 1OTHRQIDIR 783 UNSPUNSPUNSPunknUNSPUNSPUNSP
151951-10-17 12:25ESTYesARGUSGS0.830.99 Good NONE1Imported Channel 1UNSPQSCMMunkno0.834.101.300.64UNSPUNSPUNSPunknUNSPUNSPUNSP
141940-07-30 18:10ESTYesCAS/PMSUSGS0.092.21 Unspecified NONE1Imported Channel 1UNSPQSCMMunkno0.092.500.230.40UNSPUNSPUNSPunknUNSPUNSPUNSP
131939-11-01 -- ----YesARG/JFHUSGS0.372.43 Unspecified NONE1Imported Channel 1OTHRQVOLM 0.37 UNSPUNSPUNSPunknUNSPUNSPUNSP
121939-05-11 -- ----YesJJDUSGS0.612.54 Unspecified NONE1Imported Channel 1OTHRQVOLM 0.61 UNSPUNSPUNSPunknUNSPUNSPUNSP
111939-03-10 14:10ESTYesJJDUSGS0.992.66 Unspecified NONE1Imported Channel 1UNSPQSCMMunkno0.994.501.450.68UNSPUNSPUNSPunknUNSPUNSPUNSP
101938-09-28 -- ----YesJJDUSGS0.172.33 Unspecified NONE1Imported Channel 1OTHRQVOLM 0.17 UNSPUNSPUNSPunknUNSPUNSPUNSP
91938-09-15 15:10ESTYesTWE/ODMUSGS0.112.31 Unspecified NONE1Imported Channel 1UNSPQSCMMunkno0.112.600.350.31UNSPUNSPUNSPunknUNSPUNSPUNSP
81938-06-09 14:40ESTYesARGUSGS0.342.42 FairClearNONE1Imported Channel 1UNSPQSCMMunkno0.343.900.780.44UNSPUNSPUNSPunknUNSPUNSPUNSP
71937-12-23 16:30ESTYesARG/JFHUSGS0.982.60 Unspecified NONE1Imported Channel 1UNSPQSCMMunkno0.986.502.900.34UNSPUNSPUNSPunknUNSPUNSPUNSP
61937-07-06 16:30ESTYesJFHUSGS0.602.49 Unspecified NONE1Imported Channel 1UNSPQSCMMunkno0.603.000.800.75UNSPUNSPUNSPunknUNSPUNSPUNSP
51937-01-16 10:50ESTYesODM/TWEUSGS1.232.73 Unspecified NONE1Imported Channel 1UNSPQSCMMunkno1.236.002.070.59UNSPUNSPUNSPunknUNSPUNSPUNSP
41935-10-17 08:45ESTYesARG/EAGUSGS0.242.37 Unspecified NONE1Imported Channel 1OTHRQVOLM 0.24 UNSPUNSPUNSPunknUNSPUNSPUNSP
31935-09-19 09:00ESTYesODM/EAGUSGS0.362.44 Unspecified NONE1Imported Channel 1OTHRQVOLM 0.36 UNSPUNSPUNSPunknUNSPUNSPUNSP
21935-07-10 09:30ESTYesARG/CASUSGS0.372.45 Unspecified NONE1Imported Channel 1OTHRQVOLM 0.37 UNSPUNSPUNSPunknUNSPUNSPUNSP
11935-06-04 16:15ESTYesADA/CASUSGS0.602.56 Unspecified NONE1Imported Channel 1UNSPQSCMMunkno0.605.802.000.30UNSPUNSPUNSPunknUNSPUNSPUNSP