PHWS Real Time Stream Map Links

The U.S. Geological Service maintains river gauge stations all over the country. In the table below you will find direct links to some stations on major rivers of the Chesapeake Bay watershed. Links to many more stations are available for all 50 states, including:

Delaware

Maryland

New York

These links provide graphic and tabular stream flow data at stations throughout each state, for as much as 60 days of current data. Use the blue box part way down the page to set search dates. With a few clicks of the mouse, you can see data from before the 60 day period too. Archived data for previous years is available by following the “Summary of all available data” link just below the blue box. Try exploring floods that you remember.

REAL-TIME WATER DATA FOR SELECTED MAJOR (AND A FEW MINOR) RIVERS IN THE CHESAPEAKE BAY WATERSHED
NAME	STATE	WATERSHED AREA (sq. mi.)
SUSQUEHANNA R near WAVERLEY	NY	4773
SUSQUEHANNA R, W BR AT KARTHUS	PA	1462
SUSQUEHANNA R W BR AT JERSEY SHORE	PA	5225
SUSQUEHANNA R NEAR WILKES-BARRE	PA	9960
SUSQUEHANNA RIVER AT DANVILLE	PA	11,220
SUSQUEHANNA RIVER AT MARIETTA	PA	25990
SUSQUEHANNA RIVER AT CONOWINGO, MD	MD	27100
NORTH BRANCH PATAPSCO RIVER AT CEDARHURST	MD	57
PATUXENT RIVER NEAR UNITY	MD	35
PATUXENT RIV NEAR LAUREL	MD	132
NORTH BRANCH POTOMAC RIVER AT LUKE	MD	406
PATTERSON CREEK NEAR HEADSVILLE	WV	221
SOUTH BRANCH POTOMAC R NEAR SPRINGFIELD	WV	1461
POTOMAC RIVER AT PAW PAW	MD	3129
CACAPON RIVER NR GREAT CACAPON	WV	675
POTOMAC RIVER AT HANCOCK	MD	4064
CONOCOCHEAGUE CREEK AT FAIRVIEW, MD	MD	494
OPEQUON CR NEAR MARTINSBURG	WV	273
S F SHENANDOAH RIVER NEAR LYNNWOOD	VA	1079
S F SHENANDOAH RIVER AT FRONT ROYAL	VA	1634
N F SHENANDOAH RIVER NEAR STRASBURG	VA	770
SHENANDOAH RIVER AT MILLVILLE, WV	WV	3041
POTOMAC RIVER AT POINT OF ROCKS	MD	9651
MONOCACY RIVER AT BRIDGEPORT	MD	173
MONOCACY RIVER AT MONOCACY BLVD AT FREDERICK, MD	MD	703
MONOCACY RIVER AT JUG BRIDGE NEAR FREDERICK	MD	817
POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA	DC	11560
NE BRANCH ANACOSTIA RIVER AT RIVERDALE	MD	73
NW BRANCH ANACOSTIA RIVER NEAR HYATTSVILLE	MD	49
RAPPAHANNOCK RIVER AT REMINGTON	VA	619
RAPPAHANNOCK RIVER NEAR FREDERICKSBURG, VA	VA	1595
PAMUNKEY RIVER NEAR HANOVER, VA, YORK WATERSHED	VA	1078
JAMES RIVER AT BLUE RIDGE PKWY NR BIG ISLAND, VA	VA	3076
JAMES RIVER AT SCOTTSVILLE, VA	VA	4581
JAMES RIVER NEAR RICHMOND	VA	6753