Coginchaug River Flow Today
As of October 23, 2026 at 4:00 AM, the Coginchaug River is flowing at 30 cfs at Middlefield, CT — 124% of normal for the date and down 10% in 24 hours. ❤ Favorite
Coginchaug River map
See the Coginchaug River on a live map
Every gauge, dam and paddle run on the river, one tap each:
- Gauges now — which reaches are high or low
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Coginchaug River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At Middlefield, the Coginchaug River is running 30 cfs — 124% of normal, down 10% since yesterday. Along the river, 1 of 1 reporting gauges are above normal (the typical gauge is at 124% of normal).
How the Coginchaug River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- Middlefield147 ft 30 cfs124%
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Coginchaug River streamgauge, placed by its own percent of normal. The line is the typical gauge (124%).
Coginchaug River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | Elevation |
|---|---|---|---|---|---|
|
Coginchaug River At Middlefield CT
Oct 23, 4:00 AM · USGS 01192883 |
30 cfs | 124% | -10% | 5.39 ft | 147 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Dams & reservoirs on the Coginchaug River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Coginchaug River streamflow over time
Daily total flow across every monitored gauge on the river (this total last updated earlier; the live gauge readings above are current).
Coginchaug River
The Coginchaug River is a 20.2-mile-long river in Connecticut, USA. It was important in the development of colonial New England, as it was used for transportation and agriculture. The river is fed by multiple small streams and flows through several towns, including Durham, Middletown, and Middlefield, before joining the Mattabesset River. The river's hydrology has been affected by several reservoirs and dams, including the Powder Hill Reservoir, the Beseck Lake Reservoir, and the Coginchaug Reservoir, which were built in the early 20th century to provide water for Middletown and surrounding towns. These reservoirs also provide opportunities for recreational activities such as fishing, boating, and hiking. The Coginchaug River has also been important for agriculture, as it provides irrigation water for nearby farms.
Fishing near the Coginchaug River
About the Coginchaug River
How is the Coginchaug River flowing right now?
As of October 23, 2026, the Coginchaug River is flowing at 30 cfs at Middlefield, CT, about 124% of normal for the date. Every gauge’s live reading is in the table above.
Is the Coginchaug River running high or low?
The typical gauge on the Coginchaug River is at 124% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.