Delaware River Levels & Streamflow
As of Sep 2, 2026, Delaware rivers are running at 169% of normal across 15 USGS gauges — the highest is 349 cfs on the Brandywine Creek At Wilmington. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in Delaware.
Streamflow levels across Delaware are currently 169% of normal, with the Brandywine Creek At Wilmington reporting the highest discharge in the state at 349 cfs and a gauge stage of 18.55 ft.
Meanwhile, the Brandywine Creek At Wilmington is seeing a spike today — up 60% since yesterday and currently running near peak.
Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into Delaware's named rivers.
State-wide streamflow overview
The Delaware flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.
Percent of normal
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 18.55 ft
Biggest 24h spike
Now 349 cfs
Network coverage
USGS gauges feeding 0 named rivers in Delaware.
Where every gauge actually sits
One dot per Delaware streamgauge, placed by its own percent of normal. The state average is a single line through all of it.
Percent of normal compares today's discharge with the historical average for this calendar day. Tap any dot to open that gauge.
Delaware streamflow, three water years
Statewide percent of normal, every day since Aug 2023. The dotted line is normal.
799 daily readings from 15 reporting gauges. Percent of normal is today's statewide discharge against the historical average for the same calendar day — 100% is normal, not "good". The axis tops out at 250%: 26 readings above that — including the 1353% peak in Jan 2024 — are drawn along the top edge, so a few flood days cannot flatten three years of everything else. The line breaks in 2 places where the record skips more than five days — those are gaps in reporting, not readings of zero.
Delaware USGS streamgauges
Every USGS gauge Snoflo tracks in Delaware. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Brandywine Creek At Wilmington, De
1 day ago · USGS 01481500 |
343 cfs | 18.55 ft | 77°F | 91°F | 49 ft | Brandywine-Christina |
|
Red Clay Creek Near Stanton, De
1 day ago · USGS 01480015 |
40 cfs | 7.72 ft | · | 92°F | 17 ft | Brandywine-Christina |
|
White Clay Creek Near Newark, De
1 day ago · USGS 01479000 |
40 cfs | 5.03 ft | 74°F | 92°F | 17 ft | Brandywine-Christina |
|
White Clay Creek At Newark, De
1 day ago · USGS 01478650 |
34 cfs | 5.26 ft | 74°F | 92°F | 87 ft | Brandywine-Christina |
|
Red Clay Creek At Wooddale, De
1 day ago · USGS 01480000 |
32 cfs | 2.89 ft | 72°F | 91°F | 100 ft | Brandywine-Christina |
|
Nanticoke River Near Bridgeville, De
1 day ago · USGS 01487000 |
28 cfs | 4.13 ft | · | 92°F | 15 ft | Nanticoke |
|
Millsboro Pond Outlet At Millsboro, De
1 day ago · USGS 01484525 |
28 cfs | 2.97 ft | 79°F | 92°F | 7 ft | Chincoteague |
|
St Jones River At Dover, De
1 day ago · USGS 01483700 |
15 cfs | 2.75 ft | 79°F | 92°F | 3 ft | Broadkill-Smyrna |
|
Christina River At Coochs Bridge, De
1 day ago · USGS 01478000 |
7 cfs | 4.01 ft | 73°F | 92°F | 53 ft | Brandywine-Christina |
|
Marshyhope Creek Near Adamsville, De
1 day ago · USGS 01488500 |
6 cfs | 2.23 ft | · | 92°F | 29 ft | Nanticoke |
|
Shellpot Creek At Wilmington, De
1 day ago · USGS 01477800 |
6 cfs | 1.68 ft | · | 92°F | 55 ft | Brandywine-Christina |
|
Silver Lake Tributary At Middletown, De
1 day ago · USGS 01483155 |
3 cfs | · | 65°F | 91°F | 29 ft | Brandywine-Christina |
|
Beaverdam Ditch Near Millville, De
1 day ago · USGS 01484695 |
1 cfs | · | · | 92°F | 11 ft | Chincoteague |
|
Blackbird Creek At Blackbird, De
1 day ago · USGS 01483200 |
0 cfs | · | · | 92°F | 20 ft | Brandywine-Christina |
|
Beaverdam Branch At Houston, De
1 day ago · USGS 01484100 |
0 cfs | 2.29 ft | 69°F | 92°F | 38 ft | Broadkill-Smyrna |
See every Delaware gauge ranked against normal.
- Percentile rank & % of median for all 15 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
About Delaware streamflow
What are river levels like in Delaware right now?
As of September 2, 2026, Delaware rivers are running at 169% of normal across 15 USGS streamgauges, and the Brandywine Creek At Wilmington is reporting the highest discharge at 349 cfs. The full sortable gauge table is below.
Which Delaware river is running highest right now?
As of September 2, 2026, the highest discharge in Delaware is 349 cfs on the Brandywine Creek At Wilmington. See the sortable gauge table for the full statewide ranking.
Are Delaware rivers high or low right now?
Compare the statewide percent-of-normal on this page: above 100% means Delaware rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.
Where does the Delaware streamflow data come from?
The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.
What is cfs?
Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.
What does Gauge Height mean?
The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").
How fresh is the Delaware data?
USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.
Can I get a flow alert for a Delaware gauge?
Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.
Is this a substitute for an NWS flood warning?
No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.
Streamflow in every state
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