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Streamflow Measurements for the Nation


USGS 01647740 NORTH BRANCH ROCK CREEK NEAR ROCKVILLE, MD


Montgomery County, Maryland
Hydrologic Unit Code 02070010
Latitude  39°06'09", Longitude  77°07'12" NAD27
Drainage area 12.50  square miles
Gage datum 270 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)
611977-10-11 16:10EDTYesJFHUSGS1.071.020.000.70GoodClearNONE1Imported Channel 1WADEunspeunkno1.0717.59.480.11UNSPUNSPUNSPunknUNSPUNSPUNSP
601977-08-22 14:15EDTYesJFHUSGS2.561.100.000.80GoodClearNONE1Imported Channel 1UNSPother 2.56 UNSPUNSPUNSPunknUNSPUNSPUNSP
591977-06-20 12:55EDTYesJMM/BRNUSGS3.691.130.000.50GoodDebrisLightNONE1Imported Channel 1WADEunspeunkno3.6917.014.50.26UNSPUNSPUNSPunknUNSPUNSPUNSP
581977-03-31 13:55ESTYesJMUSGS18.01.460.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno18.018.019.80.90UNSPUNSPUNSPunknUNSPUNSPUNSP
571977-02-11 11:45ESTYesJMUSGS6.871.230.000.80GoodClearNONE1Imported Channel 1WADEunspeunkno6.8717.715.40.45UNSPUNSPUNSPunknUNSPUNSPUNSP
561976-12-29 10:25ESTYesJMUSGS7.361.250.000.50GoodDebrisLightNONE1Imported Channel 1WADEunspeunkno7.3617.715.60.47UNSPUNSPUNSPunknUNSPUNSPUNSP
551976-11-27 12:25ESTYesTMUSGS7.431.250.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno7.4318.015.80.47UNSPUNSPUNSPunknUNSPUNSPUNSP
541976-10-15 13:25EDTYesJFHUSGS12.51.340.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno12.518.517.80.70UNSPUNSPUNSPunknUNSPUNSPUNSP
531976-07-16 13:45EDTYesJFHUSGS5.951.180.000.80GoodClearNONE1Imported Channel 1WADEunspeunkno5.9517.715.20.39UNSPUNSPUNSPunknUNSPUNSPUNSP
521976-04-20 11:25ESTYesJFH/BMHUSGS10.31.290.000.50GoodDebrisLightNONE1Imported Channel 1WADEunspeunkno10.318.017.30.60UNSPUNSPUNSPunknUNSPUNSPUNSP
511976-01-28 10:05ESTYesRMCUSGS60.12.000.010.60GoodClearNONE1Imported Channel 1WADEunspeunkno60.120.031.41.91UNSPUNSPUNSPunknUNSPUNSPUNSP
501976-01-26 10:20ESTYesRMCUSGS16.01.470.010.50GoodClearNONE1Imported Channel 1WADEunspeunkno16.018.019.00.84UNSPUNSPUNSPunknUNSPUNSPUNSP
491975-10-15 11:25EDTYesRMCUSGS12.51.390.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno12.517.018.10.69UNSPUNSPUNSPunknUNSPUNSPUNSP
48C1975-09-29 -- ----YesTHYUSGS1093.37 Fair NONE1Imported Channel 1UNSPother 109 UNSPUNSPUNSPunknUNSPUNSPUNSP
47C1975-09-28 -- ----YesTHYUSGS1323.93 Fair NONE1Imported Channel 1UNSPother 132 UNSPUNSPUNSPunknUNSPUNSPUNSP
46C1975-09-26 13:55EDTYesTHY/ECUSGS2925.95 FairDebrisModerateNONE1Imported Channel 1WADEunspeunkno292 0.00UNSPUNSPUNSPunknUNSPUNSPUNSP
451975-07-14 14:35EDTYesDJS/THYUSGS50.72.060.000.70GoodUnspecifedNONE1Imported Channel 1WADEunspeunkno50.720.035.51.42UNSPUNSPUNSPunknUNSPUNSPUNSP
441975-06-24 14:25EDTYesDJS/GHCUSGS5.391.180.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno5.3917.718.90.28UNSPUNSPUNSPunknUNSPUNSPUNSP
431975-05-13 14:59EDTYesRMCUSGS18.41.470.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno18.418.522.00.84UNSPUNSPUNSPunknUNSPUNSPUNSP
421975-04-01 13:10EDTYesRMCUSGS22.41.560.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno22.418.521.41.05UNSPUNSPUNSPunknUNSPUNSPUNSP
411975-03-20 13:25EDTYesWJH/DJJUSGS73.42.64-0.020.80FairClearNONE1Imported Channel 1WADEunspeunkno73.422.743.71.68UNSPUNSPUNSPunknUNSPUNSPUNSP
401975-03-11 13:15EDTYesRMCUSGS9.221.320.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno9.2217.416.50.56UNSPUNSPUNSPunknUNSPUNSPUNSP
391975-03-07 14:07EDTYesPGH/WJHUSGS9.811.330.000.70GoodClearNONE1Imported Channel 1WADEunspeunkno9.8117.816.50.59UNSPUNSPUNSPunknUNSPUNSPUNSP
381975-02-14 13:40ESTYesRMCUSGS16.21.520.000.40GoodUnspecifedNONE1Imported Channel 1WADEunspeunkno16.218.320.00.81UNSPUNSPUNSPunknUNSPUNSPUNSP
371975-01-07 11:14ESTYesWJHUSGS7.821.270.000.60GoodDebrisModerateNONE1Imported Channel 1WADEunspeunkno7.8217.315.30.51UNSPUNSPUNSPunknUNSPUNSPUNSP
361974-12-10 15:15ESTYesWJHUSGS25.01.780.000.50GoodUnspecifedNONE1Imported Channel 1WADEunspeunkno25.018.327.10.92UNSPUNSPUNSPunknUNSPUNSPUNSP
351974-12-02 15:00ESTYesTHYUSGS68.82.91-0.020.60GoodClearNONE1Imported Channel 1WADEunspeunkno68.824.054.31.27UNSPUNSPUNSPunknUNSPUNSPUNSP
341974-11-08 10:50ESTYesWJHUSGS2.321.300.000.50GoodUnspecifedNONE1Imported Channel 1WADEunspeunkno2.3212.63.840.60UNSPUNSPUNSPunknUNSPUNSPUNSP
331974-11-01 13:20ESTYesWJHUSGS3.081.140.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno3.0817.013.20.23UNSPUNSPUNSPunknUNSPUNSPUNSP
321974-09-27 12:45EDTYesWJHUSGS2.421.120.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno2.4215.912.50.19UNSPUNSPUNSPunknUNSPUNSPUNSP
311974-08-16 13:05EDTYesDJSUSGS1.931.090.000.80GoodDebrisHeavyNONE1Imported Channel 1WADEunspeunkno1.9316.012.70.15UNSPUNSPUNSPunknUNSPUNSPUNSP
301974-07-12 16:30EDTYesDJS/WJHUSGS3.301.120.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno3.3016.812.40.27UNSPUNSPUNSPunknUNSPUNSPUNSP
291974-07-09 12:10EDTYesWJHUSGS3.841.180.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno3.8417.013.30.29UNSPUNSPUNSPunknUNSPUNSPUNSP
281974-05-21 13:11EDTYesWJH/GHCUSGS7.821.300.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno7.8217.415.40.49UNSPUNSPUNSPunknUNSPUNSPUNSP
271974-01-16 14:00EDTYesWJHUSGS13.41.430.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno13.412.520.60.65UNSPUNSPUNSPunknUNSPUNSPUNSP
261973-09-27 13:05EDTYesWJHUSGS5.371.200.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno5.3715.615.80.34UNSPUNSPUNSPunknUNSPUNSPUNSP
251973-09-19 15:30EDTYesWJHUSGS10.21.350.000.70FairClearNONE1Imported Channel 1WADEunspeunkno10.216.317.80.58UNSPUNSPUNSPunknUNSPUNSPUNSP
241973-05-17 12:40EDTYesTHYUSGS12.11.400.000.70GoodClearNONE1Imported Channel 1WADEunspeunkno12.117.319.70.61UNSPUNSPUNSPunknUNSPUNSPUNSP
231973-01-17 13:05ESTYesCSGUSGS13.71.410.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno13.714.518.30.75UNSPUNSPUNSPunknUNSPUNSPUNSP
221972-09-25 15:48EDTYesGBCUSGS4.521.170.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno4.5215.314.50.32UNSPUNSPUNSPunknUNSPUNSPUNSP
211972-07-05 16:15EDTYesGBCUSGS99.72.910.000.90GoodClearNONE1Imported Channel 1WADEunspeunkno99.717.046.92.13UNSPUNSPUNSPunknUNSPUNSPUNSP
201972-06-28 15:20EDTYesCSGUSGS1113.100.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno11123.055.62.00UNSPUNSPUNSPunknUNSPUNSPUNSP
19C1972-06-22 -- ----YesTHYUSGS4206.10 FairClearNONE1Imported Channel 1WADEunspeunkno420 0.00UNSPUNSPUNSPunknUNSPUNSPUNSP
181972-03-21 14:30ESTYesGBCUSGS31.41.680.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno31.418.022.51.38UNSPUNSPUNSPunknUNSPUNSPUNSP
171971-11-16 14:30ESTYesCSOUSGS10.51.350.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno10.512.015.80.66UNSPUNSPUNSPunknUNSPUNSPUNSP
161971-10-26 15:21EDTYesTHYUSGS28.62.330.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno28.622.039.71.98UNSPUNSPUNSPunknUNSPUNSPUNSP
151971-05-31 11:25EDTYesTHYUSGS55.01.930.000.50FairClearNONE1Imported Channel 1WADEunspeunkno55.014.827.52.00UNSPUNSPUNSPunknUNSPUNSPUNSP
141971-05-14 14:40EDTYesWJDUSGS86.12.430.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno86.122.537.62.29UNSPUNSPUNSPunknUNSPUNSPUNSP
131971-02-18 13:15ESTYesWJDUSGS54.61.900.010.50GoodClearNONE1Imported Channel 1WADEunspeunkno54.615.025.62.13UNSPUNSPUNSPunknUNSPUNSPUNSP
121971-02-09 15:00ESTYesWJDUSGS98.22.85-0.050.30FairClearNONE1Imported Channel 1WADEunspeunkno98.223.045.12.18UNSPUNSPUNSPunknUNSPUNSPUNSP
111970-04-15 10:00ESTYesWJDUSGS81.42.26-0.020.30GoodClearNONE1Imported Channel 1WADEunspeunkno81.422.535.52.29UNSPUNSPUNSPunknUNSPUNSPUNSP
101970-01-27 14:15ESTYesWJDUSGS20.51.520.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno20.514.018.91.08UNSPUNSPUNSPunknUNSPUNSPUNSP
91969-05-20 08:20ESTYesWJDUSGS6.381.210.000.30GoodClearNONE1Imported Channel 1WADEunspeunkno6.3813.613.90.46UNSPUNSPUNSPunknUNSPUNSPUNSP
81968-05-28 12:15ESTYesTHYUSGS44.92.380.060.50GoodDebrisLightNONE1Imported Channel 1WADEunspeunkno44.921.037.61.19UNSPUNSPUNSPunknUNSPUNSPUNSP
71968-03-18 12:00ESTYesWJDUSGS28.91.640.000.30GoodClearNONE1Imported Channel 1WADEunspeunkno28.915.718.51.56UNSPUNSPUNSPunknUNSPUNSPUNSP
61968-02-07 15:05ESTYesWJDUSGS0.670.940.000.50FairClearNONE1Imported Channel 1WADEunspeunkno0.677.702.230.30UNSPUNSPUNSPunknUNSPUNSPUNSP
51968-02-07 13:30ESTYesWJDUSGS10.21.320.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno10.213.012.00.85UNSPUNSPUNSPunknUNSPUNSPUNSP
41967-08-28 08:30ESTYesWJDUSGS50.01.90-0.010.50GoodClearNONE1Imported Channel 1WADEunspeunkno50.016.324.32.06UNSPUNSPUNSPunknUNSPUNSPUNSP
31967-08-16 07:30ESTYesWJDUSGS2.611.080.000.60GoodClearNONE1Imported Channel 1WADEunspeunkno2.6112.38.210.32UNSPUNSPUNSPunknUNSPUNSPUNSP
21967-08-05 -- ----YesWJDUSGS38.31.710.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno38.315.919.61.96UNSPUNSPUNSPunknUNSPUNSPUNSP
11967-07-10 14:30ESTYesWJDUSGS3.781.130.000.50GoodClearNONE1Imported Channel 1WADEunspeunkno3.7815.010.90.35UNSPUNSPUNSPunknUNSPUNSPUNSP