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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 401203075090901 Outfall 6A
Montgomery County, Pennsylvania
Hydrologic Unit Code 02040201
Latitude  40°12'02.99", Longitude  75°09'09.42" NAD83
Gage datum 311 feet above NAVD88
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)
212024-09-24 11:13:30EDTYespkaUSGS0.00 Excellent NONE1mainOTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPUNSP
202024-06-18 11:35:30EDTYesVJRUSGS0.00 Excellent NONE1mainOTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPUNSP
192024-03-20 14:34:05EDTYesVJR/PKAUSGS0.07 Poor NONE1mainWADEQSCMMVADV0.073.000.550.13FIRMSANDEVENPULSEVENUNKNATGA0.00
182024-01-03 14:06:08ESTYespkaUSGS0.00 0.07Poor NONE1mainWADEQSCMMVADV0.002.000.320.01SOFTGRVLUNEVPULSUNSPNSTDUNSP
172023-09-20 15:02:30EDTYespka/hpcUSGS0.00 Excellent NONE1mainOTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPUNSP
162023-06-06 15:43:30EDTYespkaUSGS0.00 0.02Excellent NONE1mainOTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPUNSP
152023-03-21 14:11:30EDTYespkaUSGS0.04 Poor NONE1mainOTHRQFLUM 0.04 SOFTsiltEVENPULSEVENUNKNUNSP
142022-12-06 13:14ESTYesMCUSGS1.000.99 Poor NONE1Main ChannelOTHRQFLUM 1.00 SOFTsiltUNEVPULSEVENUNSPUNSP
132022-09-15 15:42:30EDTYespkaPWD0.00 Excellent NONE1mainOTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPUNSP
122022-06-15 16:19:15EDTYespkaUSGS0.06 0.20Poor NONE1mainOTHRQFLUM 0.06 SOFTsiltUNEVPULSEVENUNKNUNSP
112022-03-22 13:17:48EDTYespkaUSGS0.02 0.07Poor NONE1mainWADEQSCMMVADV0.022.000.310.06SOFTsiltUNEVPULSUNEVNSTDUNSP
102021-12-15 12:30:33ESTYespkaUSGS0.04 0.03Poor NONE1mainOTHRQFLUM 0.04 SOFTsiltUNEVPULSUNEVNSTDUNSP
92021-09-21 17:40:33EDTYespkaUSGS0.01 0.10Poor NONE1mainOTHRQFLUM 0.01 SOFTsiltUNEVPULSUNEVUNKNUNSP
82021-06-29 16:43:30EDTYespkaUSGS0.00 Excellent NONE1mainOTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPUNSP
72021-03-16 13:44:14EDTYespkaUSGS0.05 0.17Poor NONE1mainOTHRQFLUM 0.05 SOFTsiltEVENPULSEVENUNKNUNSP
62021-01-12 14:48ESTNo
52020-09-15 15:04:30EDTYespkaUSGS0.00 Excellent NONE1mainOTHRother 0.00 UNSPUNSPUNSPUNSPUNSPUNSPUNSP
42020-05-04 13:53:03EDTYesLEOUSGS0.02 PoorClearNONE1mainOTHRQFLUM 0.02 SOFTSANDEVENSTDYEVENSTNDATGA0.00
32020-01-29 10:53ESTYesPWBUSGS0.04 PoorDebrisModerateNONE1MainOTHRQFLUM 0.04 FIRMGRVLUNEVPULSUNEVSTNDATGA0.00
22019-10-22 08:13:30EDTYesPWBUSGS0.00 UnknownNoFlowNONE1Mainunknother 0.00 unknunknunknunknunknUNKNunkn
12019-07-25 13:01EDTYesPWBUSGS0.06 FairDebrisModerateNONE1MainOTHRQFLUM 0.06 SOFTsiltUNEVSTDYUNEVSTNDATGA0.00