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Streamflow Measurements for the Nation


USGS 01484600 BLACKWATER CREEK NEAR CLARKESVILLE, DE


Sussex County, Delaware
Hydrologic Unit Code 02040303
Latitude  38°32'43", Longitude  75°09'49" NAD27
Drainage area 3.47  square miles
Gage datum 10 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)
552000-03-15 11:47ESTYesDCHUSGS1.151.33-0.010.40GoodClearunkn1Imported Channel 1WADEunspeunkno1.1511.37.000.16UNSPUNSPUNSPunknUNSPUNSPUNSP
542000-02-16 11:40ESTYesDCHUSGS3.231.530.000.50GoodClearunkn1Imported Channel 1WADEunspeunkno3.2312.19.730.33UNSPUNSPUNSPunknUNSPUNSPUNSP
531999-12-02 10:52ESTYesDCHUSGS0.831.460.000.40FairClearunkn1Imported Channel 1WADEunspeunkno0.836.004.170.20UNSPUNSPUNSPunknUNSPUNSPUNSP
521999-10-29 09:20EDTYesDCHUSGS2.861.610.000.40GoodClearunkn1Imported Channel 1WADEunspeunkno2.8612.411.30.25UNSPUNSPUNSPunknUNSPUNSPUNSP
511999-05-14 10:20EDTYesDCH/LCDUSGS0.821.250.000.20FairDebrisHeavyunkn1Imported Channel 1WADEunspeunkno0.822.400.930.88UNSPUNSPUNSPunknUNSPUNSPUNSP
501999-04-13 10:10EDTYesDCHUSGS3.631.500.000.40GoodClearunkn1Imported Channel 1WADEunspeunkno3.6312.010.30.35UNSPUNSPUNSPunknUNSPUNSPUNSP
491999-03-15 10:10ESTYesAJTUSGS54.93.22-0.040.60GoodClearunkn1Imported Channel 1WADEunspeunkno54.912.032.41.70UNSPUNSPUNSPunknUNSPUNSPUNSP
481999-03-09 10:50ESTYesDCHUSGS1.961.420.000.40GoodClearunkn1Imported Channel 1WADEunspeunkno1.968.104.240.46UNSPUNSPUNSPunknUNSPUNSPUNSP
471999-02-10 09:40ESTYesDCHUSGS4.451.630.000.40GoodClearunkn1Imported Channel 1WADEunspeunkno4.4511.27.120.62UNSPUNSPUNSPunknUNSPUNSPUNSP
461999-01-12 12:00ESTYesDCHUSGS1.661.480.000.40GoodClearunkn1Imported Channel 1WADEunspeunkno1.6610.04.160.40UNSPUNSPUNSPunknUNSPUNSPUNSP
451998-12-16 10:37ESTYesAJTUSGS0.201.290.000.20FairClearunkn1Imported Channel 1WADEunspeunkno0.202.100.550.38UNSPUNSPUNSPunknUNSPUNSPUNSP
441997-11-06 12:05ESTYesFADUSGS1.271.580.000.30GoodClearunkn1Imported Channel 1WADEunspeunkno1.273.501.590.80UNSPUNSPUNSPunknUNSPUNSPUNSP
431997-08-12 10:45EDTYesFADUSGS0.10 0.000.10FairClearunkn1Imported Channel 1WADEunspeunkno0.101.000.180.56UNSPUNSPUNSPunknUNSPUNSPUNSP
421997-05-22 11:40EDTYesAJTUSGS1.00 0.000.50GoodClearunkn1Imported Channel 1WADEunspeunkno1.009.604.470.22UNSPUNSPUNSPunknUNSPUNSPUNSP
411997-02-20 11:45ESTYesFADUSGS6.10 0.000.50GoodClearunkn1Imported Channel 1WADEunspeunkno6.109.306.131.00UNSPUNSPUNSPunknUNSPUNSPUNSP
401988-08-17 11:00EDTYesFADUSGS0.331.160.000.30FairDebrisLightunkn1Imported Channel 1WADEunspeunkno0.333.101.330.25UNSPUNSPUNSPunknUNSPUNSPUNSP
391988-07-12 11:20EDTYesFADUSGS0.111.100.000.20FairDebrisLightunkn1Imported Channel 1WADEunspeunkno0.111.500.560.20UNSPUNSPUNSPunknUNSPUNSPUNSP
381988-06-23 09:35EDTYesFADUSGS0.191.190.000.30FairDebrisLightunkn1Imported Channel 1WADEunspeunkno0.192.000.850.22UNSPUNSPUNSPunknUNSPUNSPUNSP
371988-06-07 11:05EDTYesFADUSGS0.511.240.000.50FairClearunkn1Imported Channel 1WADEunspeunkno0.516.202.730.19UNSPUNSPUNSPunknUNSPUNSPUNSP
361988-04-20 10:45EDTYesFADUSGS2.981.500.010.50FairClearunkn1Imported Channel 1WADEunspeunkno2.986.404.130.72UNSPUNSPUNSPunknUNSPUNSPUNSP
351988-03-17 10:30ESTYesFADUSGS1.971.570.000.50FairClearunkn1Imported Channel 1WADEunspeunkno1.9710.79.860.20UNSPUNSPUNSPunknUNSPUNSPUNSP
341988-01-27 12:50ESTYesFADUSGS5.471.860.000.50FairClearunkn1Imported Channel 1WADEunspeunkno5.4712.113.60.40UNSPUNSPUNSPunknUNSPUNSPUNSP
331987-12-29 10:20ESTYesFADUSGS2.811.660.000.70FairClearunkn1Imported Channel 1WADEunspeunkno2.817.605.900.48UNSPUNSPUNSPunknUNSPUNSPUNSP
321987-11-25 10:05ESTYesFADUSGS0.051.130.000.10FairDebrisLightunkn1Imported Channel 1WADEunspeunkno0.051.000.170.29UNSPUNSPUNSPunknUNSPUNSPUNSP
311987-10-16 -- ----YesFADUSGS0.00 Unspecified unkn1Imported Channel 1UNSPother 0.00 UNSPUNSPUNSPunknUNSPUNSPUNSP
301987-10-07 -- ----YesFADUSGS0.010.960.000.10UnspecifiedClearunkn1Imported Channel 1WADEunspeunkno0.010.500.030.33UNSPUNSPUNSPunknUNSPUNSPUNSP
291987-08-19 -- ----YesFADUSGS0.021.010.000.10UnspecifiedClearunkn1Imported Channel 1WADEunspeunkno0.026.000.050.40UNSPUNSPUNSPunknUNSPUNSPUNSP
281987-07-07 -- ----YesFADUSGS1.091.470.000.60FairClearunkn1Imported Channel 1WADEunspeunkno1.096.203.830.28UNSPUNSPUNSPunknUNSPUNSPUNSP
271987-06-03 -- ----YesFADUSGS1.421.450.000.50GoodClearunkn1Imported Channel 1WADEunspeunkno1.427.704.360.33UNSPUNSPUNSPunknUNSPUNSPUNSP
261987-06-02 -- ----YesFADUSGS1.861.53-0.040.80FairDebrisHeavyunkn1Imported Channel 1WADEunspeunkno1.867.704.850.38UNSPUNSPUNSPunknUNSPUNSPUNSP
251987-05-13 -- ----YesFADUSGS3.331.610.000.40GoodClearunkn1Imported Channel 1WADEunspeunkno3.3311.510.40.32UNSPUNSPUNSPunknUNSPUNSPUNSP
241987-05-13 -- ----YesFADUSGS3.441.610.000.50GoodClearunkn1Imported Channel 1WADEunspeunkno3.4411.410.30.33UNSPUNSPUNSPunknUNSPUNSPUNSP
231987-04-06 -- ----YesFADUSGS12.12.07-0.010.50GoodClearunkn1Imported Channel 1WADEunspeunkno12.113.318.10.67UNSPUNSPUNSPunknUNSPUNSPUNSP
221987-02-27 -- ----YesFADUSGS8.391.890.000.40GoodClearunkn1Imported Channel 1WADEunspeunkno8.3912.013.40.63UNSPUNSPUNSPunknUNSPUNSPUNSP
211987-02-05 -- ----YesFADUSGS14.62.220.000.50GoodDebrisLightunkn1Imported Channel 1WADEunspeunkno14.612.817.60.83UNSPUNSPUNSPunknUNSPUNSPUNSP
201986-12-16 -- ----YesFADUSGS1.531.670.000.30FairDebrisHeavyunkn1Imported Channel 1WADEunspeunkno1.535.503.290.47UNSPUNSPUNSPunknUNSPUNSPUNSP
191986-11-17 -- ----YesFADUSGS0.091.280.000.10FairDebrisModerateunkn1Imported Channel 1WADEunspeunkno0.091.300.200.45UNSPUNSPUNSPunknUNSPUNSPUNSP
181986-10-22 -- ----YesFADUSGS0.000.97 UnspecifiedClearunkn1Imported Channel 1UNSPother 0.00 UNSPUNSPUNSPunknUNSPUNSPUNSP
171986-10-15 -- ----YesFADUSGS0.031.110.000.10FairClearunkn1Imported Channel 1WADEunspeunkno0.031.000.070.43UNSPUNSPUNSPunknUNSPUNSPUNSP
161986-09-12 -- ----YesFADUSGS0.081.180.000.10PoorClearunkn1Imported Channel 1WADEunspeunkno0.081.400.190.42UNSPUNSPUNSPunknUNSPUNSPUNSP
151986-08-04 -- ----YesFADUSGS0.031.140.000.20PoorClearunkn1Imported Channel 1WADEunspeunkno0.031.700.230.13UNSPUNSPUNSPunknUNSPUNSPUNSP
141986-06-24 -- ----YesFADUSGS0.081.380.000.10PoorClearunkn1Imported Channel 1WADEunspeunkno0.081.000.120.67UNSPUNSPUNSPunknUNSPUNSPUNSP
131986-04-03 -- ----YesFADUSGS1.061.570.000.50GoodClearunkn1Imported Channel 1WADEunspeunkno1.0610.26.220.17UNSPUNSPUNSPunknUNSPUNSPUNSP
121986-02-26 -- ----YesFADUSGS5.941.870.000.40GoodClearunkn1Imported Channel 1WADEunspeunkno5.9411.512.70.47UNSPUNSPUNSPunknUNSPUNSPUNSP
111986-01-10 -- ----YesFADUSGS1.971.660.000.50FairClearunkn1Imported Channel 1WADEunspeunkno1.9710.67.270.27UNSPUNSPUNSPunknUNSPUNSPUNSP
101985-11-20 -- ----YesFADUSGS1.531.620.000.40FairClearunkn1Imported Channel 1WADEunspeunkno1.5310.26.250.24UNSPUNSPUNSPunknUNSPUNSPUNSP
91985-10-24 -- ----YesFADUSGS2.721.730.000.50FairClearunkn1Imported Channel 1WADEunspeunkno2.7211.110.60.26UNSPUNSPUNSPunknUNSPUNSPUNSP
81985-09-25 -- ----YesFADUSGS0.851.560.000.30FairClearunkn1Imported Channel 1WADEunspeunkno0.854.201.630.52UNSPUNSPUNSPunknUNSPUNSPUNSP
71985-08-23 -- ----YesAJTUSGS18.82.26-0.020.60GoodDebrisLightunkn1Imported Channel 1WADEunspeunkno18.812.014.61.29UNSPUNSPUNSPunknUNSPUNSPUNSP
61985-08-19 -- ----YesAJT/RHSUSGS93.44.28 GoodClearunkn1Imported Channel 1WADEunspeunkno93.412.039.32.38UNSPUNSPUNSPunknUNSPUNSPUNSP
51985-07-08 -- ----YesAJT/RHSUSGS0.191.160.000.20GoodDebrisLightunkn1Imported Channel 1WADEunspeunkno0.192.100.250.76UNSPUNSPUNSPunknUNSPUNSPUNSP