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
16 data types available - data from 2012-06-08 to 2026-08-14
Daily data
14 data types available - data from 2012-06-08 to 2026-08-13
Field measurements
2 data types available - data from 2007-04-17 to 2026-07-07
Discrete sample data
403 Observed properties (data types) available - with data from 1999-02-18 to 2026-08-04
3463 Sampling activities
Peak measurements
2 data types available - with data from 2012-10-30 to 2025-07-19
Statistical tables for select daily data types
12 data types available - data from 2012-06-08 to 2026-08-13
Important information about this monitoring location
LOCATION.-- On right bank at downstream side of bridge on Joyce Road in Rock Creek Park in Washington, DC, and 6.4 miles upstream from mouth. PERIOD OF RECORD.-- April 2007 to September 2012 (gage heights and discharge measurements only). October 2012 to current year. GAGE.-- Water stage recorder and crest-stage gage. Datum of gage is 136.35 ft above North American Vertical Datum of 1988. REMARKS.-- Flow affected by two upstream reservoirs which control flow from about 25 sq miles, Needwood Lake on Rock Creek since Sept. 1966 and Bernard Frank Lake on North Branch Rock Creek since February 1968.
Available location images
Rock Creek at Joyce Rd Washington
Rock Creek at Joyce Rd Washington, DC
View more imagery information for Rock Creek at Joyce Rd WashingtonMonitoring locations with continuous data in last 120 days
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