River Report

Oostanaula River river

2 streamgauges 30% of normal Last updated 2026-05-21
Aggregate flow
1,986cfs
% of normal
30%
Daily volume
3,939AF
Seasonal avg
6,658cfs

Total streamflow across the Oostanaula River was last observed at 1,986 cfs, and is expected to yield approximately 3,939 acre-ft of water today; about 30% of normal. River levels are low and may signify a drought. Average streamflow for this time of year is 6,658 cfs, with recent peaks last observed on 2015-12-28 when daily discharge volume was observed at 61,600 cfs.

Maximum discharge along the river is currently at the Oostanaula River Near Rome reporting a streamflow rate of 1,060 cfs. This is also the highest stage along the Oostanaula River, with a gauge stage of 5.57 ft at this location. This river is monitored from 2 different streamgauging stations along the Oostanaula River, the highest being situated at an altitude of 626 ft, the Oostanaula River At Resaca.

Max discharge

Oostanaula River Near Rome

1,060cfs
Highest stage

Oostanaula River Near Rome

5.57ft
Highest-elevation gauge

Oostanaula River At Resaca

626ft
Aggregate trend

River streamflow levels

Daily aggregate streamflow across every monitored gauge along the Oostanaula 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 Oostanaula 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)
Oostanaula River At Resaca GA
USGS 02387500
926 2.89 -6.3 34% 275 68,600 626
Oostanaula River Near Rome GA
USGS 02388500
1,060 5.57 1.9 37% 327 70,000 609
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

Oostanaula River

The Oostanaula River is a 49-mile-long river in northern Georgia, USA. The river has a long history of use by Native Americans and early settlers. It is a tributary of the Coosa River and begins in the Blue Ridge Mountains before flowing into the Coosa River at Rome, Georgia. The Oostanaula River is home to several hydroelectric power plants and has several reservoirs, including Carters Lake and Allatoona Lake. These reservoirs are used for recreation, such as boating and fishing, and also provide water for agricultural purposes. The river is also home to several rare species of fish, including the Cherokee darter and the Conasauga logperch. Despite its importance for recreational, agricultural, and ecological purposes, the Oostanaula River faces pollution, erosion, and habitat destruction.

Around the river

Recreation along the Oostanaula River

Fishing access and paddle runs Snoflo tracks within the watershed.

Track the Oostanaula 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 Oostanaula River

Where does the data for the Oostanaula 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.