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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 01588500 PATAPSCO RIVER AT WOODSTOCK, MD


Howard County, Maryland
Hydrologic Unit Code 02060003
Latitude  39°19'52", Longitude  76°52'23" NAD27
Drainage area 251.00  square miles
Gage datum 240 feet above NGVD29
Output formats
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HTML table without channel data
Tab-separated data with channel data
Tab-separated data without channel data
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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)
191909-07-15 08:00ESTYesGCS/RHBUSGS1063.64 Unspecified NONE1Imported Channel 1WADEunspeunkno10693.577.01.38UNSPUNSPUNSPunknUNSPUNSPUNSP
181905-06-21 -- ----YesG/LUSGS1863.86 Unspecified NONE1Imported Channel 1UNSPother 186 UNSPUNSPUNSPunknUNSPUNSPUNSP
171905-03-12 -- ----YesT/CUSGS7744.90 Unspecified NONE1Imported Channel 1UNSPother 774 UNSPUNSPUNSPunknUNSPUNSPUNSP
161905-03-12 -- ----YesT/CUSGS7214.90-0.03 Unspecified NONE1Imported Channel 1UNSPother 721 UNSPUNSPUNSPunknUNSPUNSPUNSP
151903-11-11 -- ----YesWCSUSGS2663.99 Unspecified NONE1Imported Channel 1UNSPother 266 UNSPUNSPUNSPunknUNSPUNSPUNSP
141903-09-15 -- ----YesEGP/SUSGS271 Unspecified NONE1Imported Channel 1UNSPother 271 UNSPUNSPUNSPunknUNSPUNSPUNSP
131903-03-14 -- ----YesECMUSGS5974.53 Unspecified NONE1Imported Channel 1UNSPother 597 UNSPUNSPUNSPunknUNSPUNSPUNSP
121902-09-04 -- ----YesEGP/HUSGS1533.68 Unspecified NONE1Imported Channel 1UNSPother 153 UNSPUNSPUNSPunknUNSPUNSPUNSP
111901-07-31 -- ----YesEGPUSGS144 Unspecified NONE1Imported Channel 1UNSPother 144 UNSPUNSPUNSPunknUNSPUNSPUNSP
101900-06-29 -- ----YesEGPUSGS1653.60 Unspecified NONE1Imported Channel 1UNSPother 165 UNSPUNSPUNSPunknUNSPUNSPUNSP
91899-09-06 -- ----YesEGPUSGS1293.60 Unspecified NONE1Imported Channel 1UNSPother 129 UNSPUNSPUNSPunknUNSPUNSPUNSP
81899-05-22 -- ----YesEGPUSGS4004.20 Unspecified NONE1Imported Channel 1UNSPother 400 UNSPUNSPUNSPunknUNSPUNSPUNSP
71897-10-30 -- ----YesEGPUSGS165 Unspecified NONE1Imported Channel 1UNSPother 165 UNSPUNSPUNSPunknUNSPUNSPUNSP
61897-04-10 -- ----YesEGPUSGS5824.60 Unspecified NONE1Imported Channel 1UNSPother 582 UNSPUNSPUNSPunknUNSPUNSPUNSP
51897-03-09 -- ----YesEGPUSGS297 Unspecified NONE1Imported Channel 1UNSPother 297 UNSPUNSPUNSPunknUNSPUNSPUNSP
41897-02-10 -- ----YesEGPUSGS3454.20 Unspecified NONE1Imported Channel 1UNSPother 345 UNSPUNSPUNSPunknUNSPUNSPUNSP
31896-11-19 -- ----YesEGPUSGS204 Unspecified NONE1Imported Channel 1UNSPother 204 UNSPUNSPUNSPunknUNSPUNSPUNSP
21896-09-16 -- ----YesEGPUSGS200 Unspecified NONE1Imported Channel 1UNSPother 200 UNSPUNSPUNSPunknUNSPUNSPUNSP
11896-08-06 -- ----YesEGPUSGS123 Unspecified NONE1Imported Channel 1UNSPother 123 UNSPUNSPUNSPunknUNSPUNSPUNSP