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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
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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
 
611977-10-11 16:10EDTYesJFHUSGS1.071.020.000.70GoodClearNONE
601977-08-22 14:15EDTYesJFHUSGS2.561.100.000.80GoodClearNONE
591977-06-20 12:55EDTYesJMM/BRNUSGS3.691.130.000.50GoodDebrisLightNONE
581977-03-31 13:55ESTYesJMUSGS18.01.460.000.50GoodClearNONE
571977-02-11 11:45ESTYesJMUSGS6.871.230.000.80GoodClearNONE
561976-12-29 10:25ESTYesJMUSGS7.361.250.000.50GoodDebrisLightNONE
551976-11-27 12:25ESTYesTMUSGS7.431.250.000.50GoodClearNONE
541976-10-15 13:25EDTYesJFHUSGS12.51.340.000.50GoodClearNONE
531976-07-16 13:45EDTYesJFHUSGS5.951.180.000.80GoodClearNONE
521976-04-20 11:25ESTYesJFH/BMHUSGS10.31.290.000.50GoodDebrisLightNONE
511976-01-28 10:05ESTYesRMCUSGS60.12.000.010.60GoodClearNONE
501976-01-26 10:20ESTYesRMCUSGS16.01.470.010.50GoodClearNONE
491975-10-15 11:25EDTYesRMCUSGS12.51.390.000.50GoodClearNONE
48C1975-09-29 -- ----YesTHYUSGS1093.37 Fair NONE
47C1975-09-28 -- ----YesTHYUSGS1323.93 Fair NONE
46C1975-09-26 13:55EDTYesTHY/ECUSGS2925.95 FairDebrisModerateNONE
451975-07-14 14:35EDTYesDJS/THYUSGS50.72.060.000.70GoodUnspecifedNONE
441975-06-24 14:25EDTYesDJS/GHCUSGS5.391.180.000.50GoodClearNONE
431975-05-13 14:59EDTYesRMCUSGS18.41.470.000.50GoodClearNONE
421975-04-01 13:10EDTYesRMCUSGS22.41.560.000.50GoodClearNONE
411975-03-20 13:25EDTYesWJH/DJJUSGS73.42.64-0.020.80FairClearNONE
401975-03-11 13:15EDTYesRMCUSGS9.221.320.000.50GoodClearNONE
391975-03-07 14:07EDTYesPGH/WJHUSGS9.811.330.000.70GoodClearNONE
381975-02-14 13:40ESTYesRMCUSGS16.21.520.000.40GoodUnspecifedNONE
371975-01-07 11:14ESTYesWJHUSGS7.821.270.000.60GoodDebrisModerateNONE
361974-12-10 15:15ESTYesWJHUSGS25.01.780.000.50GoodUnspecifedNONE
351974-12-02 15:00ESTYesTHYUSGS68.82.91-0.020.60GoodClearNONE
341974-11-08 10:50ESTYesWJHUSGS2.321.300.000.50GoodUnspecifedNONE
331974-11-01 13:20ESTYesWJHUSGS3.081.140.000.50GoodClearNONE
321974-09-27 12:45EDTYesWJHUSGS2.421.120.000.50GoodClearNONE
311974-08-16 13:05EDTYesDJSUSGS1.931.090.000.80GoodDebrisHeavyNONE
301974-07-12 16:30EDTYesDJS/WJHUSGS3.301.120.000.60GoodClearNONE
291974-07-09 12:10EDTYesWJHUSGS3.841.180.000.60GoodClearNONE
281974-05-21 13:11EDTYesWJH/GHCUSGS7.821.300.000.50GoodClearNONE
271974-01-16 14:00EDTYesWJHUSGS13.41.430.000.50GoodClearNONE
261973-09-27 13:05EDTYesWJHUSGS5.371.200.000.50GoodClearNONE
251973-09-19 15:30EDTYesWJHUSGS10.21.350.000.70FairClearNONE
241973-05-17 12:40EDTYesTHYUSGS12.11.400.000.70GoodClearNONE
231973-01-17 13:05ESTYesCSGUSGS13.71.410.000.50GoodClearNONE
221972-09-25 15:48EDTYesGBCUSGS4.521.170.000.60GoodClearNONE
211972-07-05 16:15EDTYesGBCUSGS99.72.910.000.90GoodClearNONE
201972-06-28 15:20EDTYesCSGUSGS1113.100.000.50GoodClearNONE
19C1972-06-22 -- ----YesTHYUSGS4206.10 FairClearNONE
181972-03-21 14:30ESTYesGBCUSGS31.41.680.000.50GoodClearNONE
171971-11-16 14:30ESTYesCSOUSGS10.51.350.000.50GoodClearNONE
161971-10-26 15:21EDTYesTHYUSGS28.62.330.000.50GoodClearNONE
151971-05-31 11:25EDTYesTHYUSGS55.01.930.000.50FairClearNONE
141971-05-14 14:40EDTYesWJDUSGS86.12.430.000.50GoodClearNONE
131971-02-18 13:15ESTYesWJDUSGS54.61.900.010.50GoodClearNONE
121971-02-09 15:00ESTYesWJDUSGS98.22.85-0.050.30FairClearNONE
111970-04-15 10:00ESTYesWJDUSGS81.42.26-0.020.30GoodClearNONE
101970-01-27 14:15ESTYesWJDUSGS20.51.520.000.50GoodClearNONE
91969-05-20 09:20EDTYesWJDUSGS6.381.210.000.30GoodClearNONE
81968-05-28 13:15EDTYesTHYUSGS44.92.380.060.50GoodDebrisLightNONE
71968-03-18 12:00ESTYesWJDUSGS28.91.640.000.30GoodClearNONE
61968-02-07 15:05ESTYesWJDUSGS0.670.940.000.50FairClearNONE
51968-02-07 13:30ESTYesWJDUSGS10.21.320.000.50GoodClearNONE
41967-08-28 09:30EDTYesWJDUSGS50.01.90-0.010.50GoodClearNONE
31967-08-16 08:30EDTYesWJDUSGS2.611.080.000.60GoodClearNONE
21967-08-05 -- ----YesWJDUSGS38.31.710.000.50GoodClearNONE
11967-07-10 15:30EDTYesWJDUSGS3.781.130.000.50GoodClearNONE