Important Legacy real-time page
Available data
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Learn about the data collection categories Continuous data
3 data types available - data from 1996-10-01 to 2026-07-31
Daily data
1 data types available - data from 1957-07-01 to 2026-07-30
Field measurements
2 data types available - data from 1957-07-10 to 2026-07-20
Discrete sample data
5 Observed properties (data types) available - with data from 1965-01-06 to 1987-08-20
119 Sampling activities
Statistical tables for select daily data types
1 data types available - data from 1957-07-01 to 2026-07-30
Important information about this monitoring location
LOCATION.--On left bank 40 ft downstream from bridge on Regester Avenue, at Idlewylde, 0.1 mi north of Baltimore City limits, 1.0 mi upstream from mouth, and 1.3 mi east of State Highway 45. PERIOD OF RECORD.--July 1957 to May 1965, January 1966 to September 1987, October 1996 to current year. GAGE.--Water-stage recorder, crest-stage gages, and concrete control. Datum of gage is 278.16 ft above North American Vertical Datum of 1988. Prior to May 31, 1965, at site 40 ft upstream at gage datum 3.24 ft higher. REMARKS.-- Diurnal fluctuation (occasionally extensive) caused by unknown source upstream from station.
Available location images
West Branch Herring Run at Idlewylde
West Branch Herring Run at Idlewylde, MD
View more imagery information for West Branch Herring Run at IdlewyldeMonitoring locations with continuous data in last 120 days
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