Blanchard River river
Total streamflow across the Blanchard River was last observed at 968 cfs, and is expected to yield approximately 1,920 acre-ft of water today; about 60% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 1,624 cfs, with recent peaks last observed on 2026-04-03 when daily discharge volume was observed at 37,770 cfs.
Maximum discharge along the river is currently at the Blanchard River Near Dupont Oh reporting a streamflow rate of 331 cfs. This is also the highest stage along the Blanchard River, with a gauge stage of 7.44 ft at this location. This river is monitored from 6 different streamgauging stations along the Blanchard River, the highest being situated at an altitude of 811 ft, the Blanchard River Below Mt. Blanchard Oh.
River streamflow levels
Daily aggregate streamflow across every monitored gauge along the Blanchard River. Use the range buttons to zoom in on a specific period.
Total streamflow
Sum of all monitored streamgauges · daily
Every streamgauge along the Blanchard River
All 6 USGS gauges Snoflo tracks for this river, with current flow, stage, recent change, percent of normal, and the gauge's all-time min / max. Click any header to sort. Cells are heatmapped relative to the column min/max -- darker blue = higher.
| Streamgauge▾ | Streamflow (cfs)▾ | Gauge stage (ft)▾ | 24h Δ (%)▾ | % Normal▾ | Min (cfs)▾ | Max (cfs)▾ | Elevation (ft)▾ |
|---|---|---|---|---|---|---|---|
|
Blanchard River Below Mt. Blanchard Oh
OH
USGS 04188337
|
32 | 3.25 | -33.8 | 100% | 0 | 3,320 | 811 |
|
Blanchard River Above Findlay Oh
OH
USGS 04188400
|
69 | 5.98 | -36.6 | 87% | 0 | 4,670 | 774 |
|
Blanchard River Near Findlay Oh
OH
USGS 04189000
|
80 | 1.28 | -51.2 | 126% | 3 | 9,590 | 756 |
|
Blanchard River At Gilboa Oh
OH
USGS 04189131
|
204 | 5.00 | -36.4 | 109% | 0 | 8,300 | 730 |
|
Blanchard River At Ottawa Oh
OH
USGS 04189260
|
253 | 6.92 | -35.5 | 95% | 0 | 8,250 | 710 |
|
Blanchard River Near Dupont Oh
OH
USGS 04190000
|
331 | 7.44 | -39.9 | 166% | 2 | 13,500 | 701 |
Maximum streamflow discharge by year
The single highest aggregate discharge recorded each year. Spotting the multi-year trend reveals droughts vs. wet cycles long before the headline daily flow does.
Annual peak discharge
From the river's full record · one point per water year
Streamflow elevation profile
Each bubble is one gauge along the river, plotted by current streamflow (x-axis) vs elevation (y-axis), sized by gauge stage. Reading top-to-bottom traces the river from headwaters down to its mouth -- you can see flow accumulate as elevation drops.
Elevation vs streamflow
One point per monitored gauge · bubble size = gauge stage
Blanchard River
The Blanchard River is a 102.1-mile-long river in Ohio. The river's drainage basin covers about 1,219 square miles, including parts of Hancock, Hardin, Putnam, and Allen counties. The Blanchard River Watershed has a long history of flooding, causing significant damages to agricultural land and residential properties. To mitigate flood damages, several flood-control measures were constructed, including the Ottawa River Reservoir, Eagle Creek Dam, and Blanchard River Dam. These projects help to reduce flood damages in the region. Additionally, the Blanchard River supports agricultural uses, including crop irrigation and livestock watering, and recreational uses, such as fishing and boating.
Recreation along the Blanchard River
Fishing access and paddle runs Snoflo tracks within the watershed.
Track the Blanchard River in the Snoflo app
Set per-gauge push alerts (e.g. "alert me when flow at the Russian R Nr Healdsburg crosses 5,000 cfs"), and Snoflo's iOS app pushes the moment USGS reports the crossing.
About the Blanchard River
Where does the data for the Blanchard River come from?
Streamflow and gauge stage data are sourced from the U.S. Geological Survey (USGS) National Water Information System. The aggregate flow shown at the top of the page is computed by Snoflo as the sum of all monitored gauges along the river.
How is "percent of normal" calculated?
Today's aggregate streamflow is compared to the historical average aggregate streamflow on this calendar day across the river's full record. 100% means right on average; values above 100% indicate above-normal flow (wet year); values below indicate below-normal (dry year or drought).
Why are some gauges showing very different flows?
Gauges along a river measure flow at different points: headwater gauges read what's coming off the snowpack or mountain runoff; downstream gauges integrate everything upstream, including tributary inputs. Wide spreads usually mean a tributary is contributing significantly between gauges.
What's the elevation profile chart showing?
Each bubble is one gauge along the river, plotted by streamflow (x-axis) and elevation (y-axis), sized by gauge stage. Reading top-down traces the river from headwaters to mouth -- you can see flow build as elevation drops.
Can I get alerts when a specific gauge crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app on a per-gauge basis. Open any individual streamgauge from the table above and favorite it to set a discharge threshold.