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 1990-10-01 to 2026-03-19
Daily data
1 data types available - data from 1929-10-01 to 2026-03-18
Field measurements
2 data types available - data from 1929-11-15 to 2026-03-19
Discrete sample data
303 Observed properties (data types) available - with data from 1959-10-01 to 1999-08-18
149 Sampling activities
Statistical tables for select daily data types
1 data types available - data from 1929-10-01 to 2026-03-18
Important information about this monitoring location
LOCATION.-- On left bank 125 ft downstream from Sherrill Drive Bridge in Rock Creek Park in Washington, D.C., and 7.5 mi upstream from mouth. PERIOD OF RECORD.-- October 1929 to current year. GAGE.-- Water-stage recorder and crest-stage gage. Datum of gage is 148.15 ft above North American Vertical Datum of 1988. REMARKS.-- Flow affected by two upstream reservoirs which control flow from about 25 miĀ², Needwood Lake on Rock Creek since Sept. 1966 and Bernard Frank Lake on North Branch Rock Creek since February 1968.
Monitoring locations with continuous data in last 120 days
No locations found
