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Streamflow Measurements for the Nation


USGS 01647720 NORTH BRANCH ROCK CREEK NEAR NORBECK, MD


Montgomery County, Maryland
Hydrologic Unit Code 02070010
Latitude  39°06'59", Longitude  77°06'09" NAD27
Drainage area 9.73  square miles
Gage datum 320 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
 
661977-10-11 13:00EDTYesJFUSGS0.750.240.001.00GoodClearNONE
651977-08-22 11:45EDTYesJFHUSGS1.130.320.000.50GoodClearNONE
641977-07-26 15:40EDTYesDFGUSGS1.730.380.000.40GoodClearNONE
631977-06-20 11:00EDTYesJMM/RRNUSGS2.390.410.000.40GoodClearNONE
621977-05-11 13:40EDTYesDFGUSGS4.960.580.000.40GoodClearNONE
611977-03-31 12:20ESTYesJMUSGS6.810.650.000.50GoodClearNONE
601977-02-11 09:45ESTYesJMM/MSNUSGS7.820.870.000.50GoodIceCoverNONE
591976-12-28 12:25ESTYesJMUSGS5.040.570.000.50GoodIceShoreNONE
581976-11-12 13:55ESTYesJMUSGS5.010.590.000.80GoodClearNONE
571976-10-14 13:20EDTYesJMUSGS3.890.540.001.00GoodDebrisModerateNONE
561976-09-23 15:30EDTYesJFHUSGS2.030.410.000.50GoodClearNONE
551976-07-16 11:45EDTYesJFHUSGS4.360.520.000.60GoodClearNONE
541976-06-07 12:40EDTYesDFGUSGS5.550.620.001.00GoodClearNONE
531976-04-15 12:20ESTYesJMUSGS8.770.730.000.50GoodClearNONE
521976-03-24 11:15ESTYesDFGUSGS7.850.730.000.50GoodClearNONE
511976-01-26 11:35ESTYesRMCUSGS50.01.560.010.50GoodClearNONE
501975-12-16 10:15ESTYesRMCUSGS8.250.940.000.50GoodClearNONE
491975-11-12 10:10ESTYesRMCUSGS8.540.950.000.50GoodClearNONE
481975-10-07 10:30EDTYesRMCUSGS7.830.950.000.50GoodClearNONE
471975-09-26 11:00EDTYesTHY/CNUSGS13006.100.601.10FairClearNONE
461975-08-21 11:25EDTYesDJSUSGS4.120.560.000.40FairClearNONE
451975-07-23 14:55EDTYesDJSUSGS10.20.80-0.010.60GoodClearNONE
441975-07-14 13:05EDTYesTHY/DJSUSGS1332.43-0.360.50GoodClearNONE
431975-06-24 15:40EDTYesGHC/DJSUSGS4.020.470.000.50FairClearNONE
421975-05-13 13:55EDTYesRMCUSGS14.30.85-0.010.50GoodClearNONE
411975-04-02 10:55EDTYesRMCUSGS10.90.760.000.60GoodClearNONE
401975-04-01 14:40EDTYesRMCUSGS12.20.790.000.50GoodClearNONE
391975-02-14 12:00ESTYesRMCUSGS7.780.660.001.00GoodClearNONE
381975-01-07 12:45ESTYesWJHUSGS6.000.570.000.70GoodClearNONE
371974-12-16 12:05ESTYesWJH/GHCUSGS2463.50-0.370.80PoorClearNONE
361974-11-08 12:00ESTYesWJHUSGS2.240.650.000.80GoodClearNONE
351974-10-01 14:40EDTYesTHYUSGS2.370.410.001.00GoodClearNONE
341974-09-26 16:04EDTYesWJHUSGS1.400.330.010.50FairClearNONE
331974-07-24 15:15EDTYesOJS/GHCUSGS1.670.290.001.00GoodClearNONE
321974-05-16 14:20EDTYesWJH/GHCUSGS6.840.610.000.90GoodClearNONE
311974-03-07 14:08EDTYesWJHUSGS8.300.670.000.50GoodClearNONE
301973-12-28 13:30ESTYesWJH/SCCUSGS12.80.830.001.00FairClearNONE
291973-08-14 11:00EDTYesWJH/SCCUSGS3.560.480.000.50GoodClearNONE
281973-06-12 12:05EDTYesWJHUSGS8.430.680.001.00GoodClearNONE
271973-04-05 14:55ESTYesTHYUSGS22.41.11-0.010.50GoodClearNONE
261973-03-14 13:50ESTYesCSGUSGS11.60.810.000.50FairClearNONE
251973-01-17 15:26ESTYesCSGUSGS11.10.790.000.50GoodClearNONE
241972-11-14 15:55ESTYesCSG/THYUSGS79.02.54-0.130.50GoodDebrisLightNONE
231972-11-14 15:22ESTYesCSG/THYUSGS88.02.74-0.240.50GoodDebrisLightNONE
221972-11-14 10:47ESTYesCSG/THYUSGS3885.35-0.071.00FairDebrisLightNONE
211972-10-19 14:58EDTYesCSGUSGS13.50.98-0.010.70FairClearNONE
201972-09-28 15:50EDTYesCSGUSGS3.120.500.000.70FairClearNONE
191972-06-28 17:25EDTYesCSGUSGS17.51.04-0.021.00GoodClearNONE
18C1972-06-22 -- ----YesCGJUSGS1010014.10 Fair NONE
171972-03-21 11:45ESTYesGBCUSGS14.90.890.000.70GoodClearNONE
161972-02-14 10:10ESTYesCSGUSGS26.11.190.001.00GoodClearNONE
151972-01-06 14:25ESTYesCSG/GBCUSGS12.50.870.000.50GoodClearNONE
141971-11-16 11:00ESTYesCSGUSGS8.490.740.001.00GoodClearNONE
131971-05-13 16:30EDTYesWJDUSGS56.51.67-0.080.50GoodClearNONE
121971-05-06 14:40EDTYesTHYUSGS6.480.670.000.60GoodDebrisLightNONE
111970-04-15 13:00ESTYesWJDUSGS47.51.48-0.031.00GoodClearNONE
101970-04-14 16:28ESTYesWJD/THYUSGS3963.88-0.070.50FairClearNONE
91969-11-04 15:50ESTYesWJDUSGS2.870.660.000.70GoodClearNONE
81969-03-18 15:12ESTYesTHYUSGS5.400.610.000.50FairClearNONE
71968-09-20 10:03ESTYesTHYUSGS0.900.310.000.50FairClearNONE
61968-05-28 13:30ESTYesWJD/THYUSGS1992.780.131.00GoodClearNONE
51968-03-08 13:10ESTYesTHY/JRGUSGS5.100.530.000.50PoorClearNONE
41967-08-01 08:45ESTYesWJDUSGS1.980.040.000.70GoodClearNONE
31967-06-02 13:10ESTYesTHYUSGS4.540.57-0.010.60GoodClearNONE
21967-03-15 10:30ESTYesWJDUSGS97.71.990.000.50GoodClearNONE
11967-03-08 11:00ESTYesWJDUSGS19.11.010.000.50GoodClearNONE