Important Legacy real-time page
Available data
Select data types to graph from categories based on the way the data were collected.
Learn about the data collection categories Continuous data
3 data types available - data from 1985-10-01 to 2026-08-01
Daily data
3 data types available - data from 1977-06-27 to 2026-07-30
Field measurements
2 data types available - data from 1955-04-07 to 2026-06-29
Discrete sample data
333 Observed properties (data types) available - with data from 1977-10-07 to 2026-07-22
2862 Sampling activities
Statistical tables for select daily data types
3 data types available - data from 1977-06-27 to 2026-07-30
Important information about this monitoring location
LOCATION.--on left bank upstream from bridge on U.S. Highway 50 (John Hanson Highway), 3.0 mi east of Bowie City Hall, 3.1 mi downstream from mouth of Little Patuxent River, 4.2 mi northwest of Davidsonville, and 60 mi upstream from mouth. PERIOD OF RECORD.--April 1955 to June 1977 (gage heights and discharge measurements only), June 1977 to current year. GAGE.-- Water-stage recorder and crest-stage gage. Datum of gage is 12.32 ft above North American Vertical Datum of 1988. Prior to June 27, 1977, nonrecording gage at same site and gage datum.
Monitoring locations with continuous data in last 120 days
No locations found

