River Report

Rivanna River river

1 streamgauge
Aggregate flow
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% of normal
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Daily volume
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Seasonal avg
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Aggregate trend

River streamflow levels

Daily aggregate streamflow across every monitored gauge along the Rivanna 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 Rivanna River

All 1 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)
Rivanna River At Palmyra VA
USGS 02034000
450 3.23 -28.8 72% 32 28,700 218
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

Rivanna River

The Rivanna River is a 42-mile long waterway located in central Virginia. It is believed to have been named by the Monacan tribe, who once inhabited the area. The river has played a significant role in the history of the region, with colonial settlers using it for transportation and trade. Today, the Rivanna River is also an important source of drinking water for the nearby city of Charlottesville. It is fed by several tributaries and contains two major reservoirs, the Sugar Hollow Reservoir and the Ragged Mountain Reservoir. These reservoirs and their accompanying dams help regulate the flow of the river and provide additional water resources for the area. The Rivanna River is also a popular destination for recreational activities like kayaking, fishing, and hiking, and it supports several agricultural operations in the surrounding areas.

Around the river

Recreation along the Rivanna River

Fishing access and paddle runs Snoflo tracks within the watershed.

Track the Rivanna 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 Rivanna River

Where does the data for the Rivanna 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.