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Streamflow Measurements for the Nation
Streamflow measurement pages will be decommissioned in early 2026.
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| HTML table with channel data |
| HTML table without channel data |
| Tab-separated data with channel data |
| Tab-separated data without channel data |
| Graph of data |
| Reselect output format |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 31 | 1974-08-19 19:50 | EDT | Yes | THY | USGS | 14.1 | 1.56 | -0.11 | 0.20 | Fair | Clear | NONE |
| 30 | 1974-08-19 18:50 | EDT | Yes | THY | USGS | 32.8 | 1.84 | 0.08 | 0.20 | Poor | Clear | NONE |
| 29 | 1974-06-19 12:50 | EDT | Yes | WJH | USGS | 0.17 | 0.38 | 0.00 | 0.40 | Excellent | Clear | NONE |
| 28 | 1974-05-16 11:55 | EDT | Yes | GHC/WJH | USGS | 0.31 | 0.65 | 0.00 | 0.30 | Good | Clear | NONE |
| 27 | 1974-03-06 11:07 | EDT | Yes | WJH | USGS | 0.41 | 0.97 | 0.00 | 0.50 | Good | Clear | NONE |
| 26 | 1973-10-15 11:33 | EDT | Yes | WJH | USGS | 1.69 | 1.12 | 0.07 | 0.80 | Fair | Clear | NONE |
| 25 | 1973-08-27 13:30 | EDT | Yes | THY | USGS | 0.21 | 0.41 | 0.00 | 0.30 | Good | NONE | |
| 24 | 1973-07-12 17:04 | EDT | Yes | THY | USGS | 0.28 | 0.64 | 0.00 | 0.20 | Unspecified | NONE | |
| 23 | 1973-06-01 12:50 | EDT | Yes | WJH | USGS | 0.72 | 1.00 | 0.00 | 0.50 | Good | Clear | NONE |
| 22 | 1973-03-08 13:55 | EST | Yes | GBC | USGS | 1.66 | 1.11 | 0.00 | 0.50 | Good | Clear | NONE |
| 21 | 1972-09-28 13:35 | EDT | Yes | GBC | USGS | 0.19 | 0.50 | 0.00 | 0.40 | Good | Clear | NONE |
| 20 | 1972-06-21 20:43 | EDT | Yes | MKB | USGS | 56.0 | 2.03 | -0.08 | 0.30 | Fair | Clear | NONE |
| 19 | 1972-06-21 19:50 | EDT | Yes | THY | USGS | 100 | 2.30 | -0.16 | 0.40 | Poor | Clear | NONE |
| 18 | 1972-04-13 10:23 | EST | Yes | MKB | USGS | 5.34 | 1.42 | -0.03 | 0.40 | Unspecified | Clear | NONE |
| 17 | 1972-03-17 13:40 | EST | Yes | GBC | USGS | 1.87 | 1.24 | 0.00 | 0.50 | Fair | Clear | NONE |
| 16 | 1972-01-21 14:45 | EST | Yes | RMC | USGS | 0.37 | 1.08 | 0.00 | 0.50 | Poor | Clear | NONE |
| 15 | 1971-11-17 12:15 | EST | Yes | GBC | USGS | 0.37 | 1.03 | 0.00 | 0.20 | Good | Clear | NONE |
| 14 | 1971-11-17 11:55 | EST | Yes | GBC | USGS | 0.44 | 1.03 | 0.00 | 0.20 | Fair | Clear | NONE |
| 13 | 1971-09-13 14:55 | EDT | Yes | SCC/WJD | USGS | 0.54 | 1.12 | -0.01 | 0.50 | Good | Clear | NONE |
| 12 | 1970-08-10 14:45 | EDT | Yes | THY | USGS | 0.13 | 0.29 | 0.00 | 0.80 | Fair | Clear | NONE |
| 11 | 1970-04-15 15:00 | EST | Yes | DPS | USGS | 1.71 | 0.57 | 0.00 | 0.40 | Good | Clear | NONE |
| 10 | 1970-04-14 14:30 | EST | Yes | WJD/DPS | USGS | 31.8 | 1.24 | -0.10 | 0.20 | Good | Clear | NONE |
| 9 | 1970-04-14 13:47 | EST | Yes | WJD/DPS | USGS | 51.6 | 1.49 | -0.11 | 0.40 | Good | Clear | NONE |
| 8S | 1969-08-09 -- -- | -- | Yes | DHC/THY | USGS | 240 | 2.83 | Fair | NONE | |||
| 7 | 1969-03-19 15:30 | EST | Yes | WJD/DPS | USGS | 0.30 | 0.38 | 1.00 | 0.40 | Good | Clear | NONE |
| 6 | 1968-09-23 13:22 | EST | Yes | THY | USGS | 0.03 | 0.24 | 0.00 | Fair | Clear | NONE | |
| 5 | 1968-05-28 08:20 | EST | Yes | THY | USGS | 15.4 | 0.99 | 0.06 | 0.30 | Fair | Clear | NONE |
| 4 | 1967-07-31 14:55 | EST | Yes | BJB | USGS | 0.14 | 0.31 | 0.00 | 0.30 | Fair | Clear | NONE |
| 3 | 1967-06-02 11:05 | EST | Yes | THY/LWD | USGS | 0.24 | 0.39 | 0.00 | 0.30 | Fair | Clear | NONE |
| 2 | 1967-03-15 10:50 | EST | Yes | THY/LWL | USGS | 4.05 | 0.75 | -0.03 | 0.20 | Good | Clear | NONE |
| 1 | 1966-10-19 11:00 | EST | Yes | DHC | USGS | 8.00 | 0.93 | 0.02 | 0.30 | Good | Clear | NONE |
U.S. Department of the Interior |
U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL:
Page Contact Information: Maryland Water Data Support Team
Page Last Modified: 2025-12-25 23:46:39 EST
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