River Report

Bark River river

2 streamgauges 81% of normal Last updated 2026-05-25
Aggregate flow
144cfs
% of normal
81%
Daily volume
285AF
Seasonal avg
178cfs

Total streamflow across the Bark River was last observed at 144 cfs, and is expected to yield approximately 285 acre-ft of water today; about 81% of normal. Average streamflow for this time of year is 178 cfs, with recent peaks last observed on 2025-08-11 when daily discharge volume was observed at 865 cfs.

Maximum discharge along the river is currently at the Bark River Near Rome reporting a streamflow rate of 104 cfs. However, the streamgauge with the highest stage along the river is the Bark River At Nagawicka Road At Delafield with a gauge stage of 12.71 ft. This river is monitored from 2 different streamgauging stations along the Bark River, the highest being situated at an altitude of 901 ft, the Bark River At Nagawicka Road At Delafield.

Max discharge

Bark River Near Rome

104cfs
Highest-elevation gauge

Bark River At Nagawicka Road At Delafield

901ft
Aggregate trend

River streamflow levels

Daily aggregate streamflow across every monitored gauge along the Bark River. Use the range buttons to zoom in on a specific period.

Total streamflow

Sum of all monitored streamgauges · daily

Per-gauge breakdown

Every streamgauge along the Bark River

All 2 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)
Bark River At Nagawicka Road At Delafield WI
USGS 05426067
40 12.71 -2.2 120% 10 345 901
Bark River Near Rome WI
USGS 05426250
104 2.22 -10.3 80% 5 810 819
Annual peaks

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

Profile

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

About this river

Bark River

The Bark River is a 70-mile-long river that runs through Wisconsin, USA. It is a tributary of the Rock River, which eventually flows into the Mississippi River. The river's name comes from the bark of trees that was used to make canoes by Native Americans. The river has a rich history and was used for transportation and logging in the past. Today, the river is used for recreation and water supply. The river has several reservoirs and dams, including the Lower and Upper Nemahbin Lakes, Lower and Upper Nashotah Lakes, and the Lulu Lake Preserve. These reservoirs and dams are used for flood control and water supply. The river is also used for fishing and boating, while nearby agricultural land is irrigated using water from the river.

Around the river

Recreation along the Bark River

Fishing access and paddle runs Snoflo tracks within the watershed.

Track the Bark 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.

FAQ

About the Bark River

Where does the data for the Bark 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.