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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 06666667 Helena Test Coulee 2
Lewis And Clark County, Montana
Hydrologic Unit Code 10030101
Latitude  46°37'00", Longitude 112°02'30" NAD27
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)
6382008-04-07 18:00MDTYesBRGUSGS12404.04 FairClearNONE1Imported Channel 1UNSPother 1240 unknunknunknunknunknUNKNunkn
6372007-11-06 17:00MSTYesDWGUSGS1322.66 PoorClearNONE1Imported Channel 1UNSPother 132 unknunknunknunknunknUNKNunkn
6362007-09-17 18:00MDTYesDWGUSGS4263.21 FairClearNONE1Imported Channel 1UNSPother 426 unknunknunknunknunknUNKNunkn
6352007-08-14 18:00MDTYesDWGUSGS2872.98 FairClearNONE1Imported Channel 1UNSPother 287 unknunknunknunknunknUNKNunkn
6342007-06-26 18:00MDTYesBRGUSGS6473.54 FairClearNONE1Imported Channel 1UNSPother 647 unknunknunknunknunknUNKNunkn
6332007-05-02 18:00MDTYesDWGUSGS19904.77 FairClearNONE1Imported Channel 1UNSPother 1990 unknunknunknunknunknUNKNunkn
6322007-03-15 18:00MDTYesDWGUSGS19304.69 FairClearNONE1Imported Channel 1UNSPother 1930 unknunknunknunknunknUNKNunkn
4651985-03-11 17:00MSTYesDWG/JWBUSGS66507.02 GoodClearNONE1Imported Channel 1UNSPother 6650 unknunknunknunknunknUNKNunkn
2161970-09-05 17:00MDTYesMcC/BORUSGS97308.34 PoorClearNONE1Imported Channel 1UNSPother 9730 unknunknunknunknunknUNKNunkn