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Streamflow Measurements for the Nation

! Streamflow measurement pages will be decommissioned in early 2026. Please find the modernized pages in WDFN that suit you best. Learn more about our modernization plans and timeline and new pages.

USGS 01378855 Black Bk at Madison NJ
Morris County, New Jersey
Hydrologic Unit Code 02030103
Latitude  40°44'13", Longitude  74°25'21" NAD83
Drainage area 0.42  square miles
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)
152010-08-10 12:51EDTYesrwaUSGS0.035.790.000.10GoodUnspecifedNONE1Imported Channel 1UNSPother 0.03 UNSPUNSPUNSPunknUNSPUNSPUNSP
142010-06-21 18:05EDTYesrwaUSGS0.0775.750.000.10GoodClearNONE1Imported Channel 1OTHRQVOLM 0.077 UNSPUNSPUNSPunknUNSPUNSPUNSP
132009-09-03 15:00EDTYesrwaUSGS0.075.790.000.10GoodUnspecifedNONE1Imported Channel 1OTHRQVOLM 0.07 UNSPUNSPUNSPunknUNSPUNSPUPST50.00
122009-08-18 14:55EDTYesrwaUSGS0.3075.790.000.10GoodVegetationModerateNONE1Imported Channel 1OTHRQVOLM 0.307 UNSPUNSPUNSPunknUNSPUNSPUNSP
112009-05-07 09:23EDTYesLSFUSGS2.36 0.001.50UnspecifiedUnspecifedNONE1Imported Channel 1WADEQSCMMVADV2.368.007.980.30FIRMLDGEEVENunknEVENUNSPUNSP
102008-09-22 10:17EDTYesLSF/BJGUSGS0.06 Poor NONE1Imported Channel 1WADEQSCMMVADV0.068.905.410.01UNSPUNSPUNSPunknUNSPUNSPUNSP
92008-08-19 14:45EDTYesRWAUSGS0.035.790.000.20GoodVegetationLightNONE1Imported Channel 1OTHRQFLUM 0.03 UNSPUNSPUNSPunknUNSPUNSPUNSP
82008-07-22 14:59EDTYesRWAUSGS0.055.800.000.30PoorClearNONE1Imported Channel 1WADEQSCMMVADV0.056.501.460.03UNSPUNSPUNSPunknUNSPUNSPUNSP
72007-08-27 13:33EDTYesRWAUSGS0.475.710.000.40PoorClearNONE1Imported Channel 1WADEQSCMMVADV0.476.202.690.17UNSPUNSPUNSPunknUNSPUNSPUNSP
62007-08-03 14:16EDTYesRWAUSGS0.085.800.000.50Poor NONE1Imported Channel 1WADEQSCMMVADV0.086.105.540.01UNSPUNSPUNSPunknUNSPUNSPUNSP
52006-08-22 10:12EDTYesEMLUSGS0.005.880.000.10ExcellentClearNONE1Imported Channel 1WADEunspeunkno0.00 0.00UNSPUNSPUNSPunknUNSPUNSPUNSP
42006-08-08 11:12EDTYesemlUSGS0.075.840.000.30PoorClearNONE1Imported Channel 1WADEunspeunkno0.075.701.060.06UNSPUNSPUNSPunknUNSPUNSPUNSP
32005-09-06 11:00EDTYesGLCUSGS0.005.92 ExcellentDebrisHeavyNONE1Imported Channel 1UNSPother 0.00 UNSPUNSPUNSPunknUNSPUNSPUNSP
22005-07-28 10:55EDTYesJJTUSGS0.025.820.000.10UnspecifiedDebrisLightNONE1Imported Channel 1OTHRQFLUM 0.02 UNSPUNSPUNSPunknUNSPUNSPUNSP
12004-09-14 14:24EDTYesafwUSGS0.125.800.000.20PoorClearNONE1Imported Channel 1WADEunspeunkno0.124.400.900.14UNSPUNSPUNSPunknUNSPUNSPUNSP