How high is the Olentangy River Near Delaware OH right now?

The Olentangy River Near Delaware OH is currently flowing at 1,020 cubic feet per second with a gage height of 3.61 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Olentangy River Near Delaware OH normal for this time of year?

Current flow is classified as high for June 11. Today's discharge is at the 86th percentile compared to the long-term historical record at this gauge.

What is the historical median flow for the Olentangy River Near Delaware OH on June 11?

The long-term median discharge for this date is 108 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 14 to 1,620 cfs.

Where is the Olentangy River Near Delaware OH stream gauge located?

The Olentangy River Near Delaware OH stream gauge is operated by the USGS in Delaware County, OH on the Olentangy River. USGS site number 03225500 (coordinates 40.3551, -83.0671).

Olentangy River Near Delaware OH

USGS Site No: 03225500 • Olentangy River • Delaware County, OH

Olentangy River Near Delaware OH on the Olentangy River is currently at 1,020 cfs (High — 86th percentile for this date) . Gage height: 3.61 ft.

Reading from 1 week ago

↑ Upstream on Olentangy River

Olentangy River at Claridon OH

Downstream on Olentangy River ↓

Olentangy River Near Worthington OH

1,020

CFS Discharge

3.61

Gage Height (ft)

High

Flow Condition

N/A

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	14
25th	Low threshold	42
50th (Median)	Normal (median)	108
75th	High threshold	235
95th	Very High threshold	1,620	Today: 1,020 cfs

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	549	—
May 27, 2026	148	—
May 26, 2026	62	—
May 25, 2026	73	—
May 24, 2026	88	—
May 23, 2026	377	—
May 22, 2026	746	—
May 21, 2026	1,030	—
May 20, 2026	1,350	—
May 19, 2026	28	—
May 18, 2026	247	—
May 17, 2026	472	—
May 16, 2026	237	—
May 15, 2026	133	—
Apr 21, 2026	56	—
Apr 20, 2026	142	—
Apr 19, 2026	235	—
Apr 18, 2026	235	—
Apr 17, 2026	237	—
Apr 16, 2026	259	—
Apr 15, 2026	273	—
Apr 14, 2026	214	—
Apr 13, 2026	235	—
Apr 12, 2026	265	—
Apr 11, 2026	398	—
Apr 10, 2026	491	—
Apr 9, 2026	791	—
Apr 8, 2026	2,600	—
Apr 7, 2026	4,330	—
Apr 6, 2026	4,510	—

Station Information

USGS Site No: 03225500
State: OH
County: Delaware County
Coordinates: 40.3551, -83.0671
Drainage Area: 393 mi²
Datum (ft): 877.7
HUC Code: 05060001

View on USGS NWIS →

Recent Extremes

Max discharge: 4,540 cfs

May 11, 2025
Min discharge: 9 cfs

Nov 13, 2025

Computed from the local daily-values archive.

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Alum Creek at Africa OH
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Big Walnut Creek at Sunbury OH
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