A broad river ledge drop in central Connecticut, the burly counterpart to Kent's lace, with a live gauge upstream on its own river.
March through May
Big water window
in a typical year
Rain fed
What drives it
Coginchaug River
Live USGS
Data on this page
gauge 01192883
CT State Parks
Managed by
their rules govern
Trail status, closures and safety rules belong to each falls' managing agency, named and linked on every page.
The season
What fills Wadsworth Big Falls, and when
The Coginchaug is a low-elevation river that runs on rain with a modest snowmelt bump, so Big Falls is widest from March through May and after storms, settling to a genteel curtain in dry stretches. The Middlefield gauge upstream reads the same water a few minutes before it goes over.
Typical best flow: March through May
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What the agency itself says
Wadsworth Falls, designated as a state park in 1942, offers visitors 4.5 miles of trails for hiking or biking as well as scenic views of the namesake falls.
Gauge: USGS 01192883 Coginchaug River at Middlefield CT, upstream of the falls on the same river. The gauge reads the river, not the brink of the falls, so treat it as the trend line rather than a turnstile.
Source: USGS Water Services (National Water Information System). Instantaneous values and daily statistics services. U.S. Geological Survey data are works of the United States Government and are in the public domain. Gauge verified 2026-08-27.
Rain-fed falls carry the color of their watershed: Blackwater Falls runs amber with tannin from spruce and hemlock bogs upstream, and its volume tracks the last month of Appalachian weather. “Blackwater Falls (15437499241)” by Benjamin Smith from United States, CC BY 2.0
Getting there
Access, in the agency's words and ours
The falls area is intended for short visits to view the scenic falls, in the park's words, with swimming and picnicking prohibited there; the park proper offers 4.5 miles of trails and a separate designated swimming area.
A river-ledge falls (Great Falls of the Potomac, NPS photo). Wadsworth Big Falls is Connecticut's pocket version, running on the season's rain. “Great Falls of the Potomac River in November, 2012” — National Park Service — Public domain
Common questions
Wadsworth Big Falls flow season FAQ
The reliable big-water window is March through May. The Coginchaug is a low-elevation river that runs on rain with a modest snowmelt bump, so Big Falls is widest from March through May and after storms, settling to a genteel curtain in dry stretches. The Middlefield gauge upstream reads the same water a few minutes before it goes over.
This page reads the USGS gauge on Coginchaug River (Coginchaug River at Middlefield CT, upstream of the falls on the same river) live in your browser, and shows the latest flow next to the median USGS publishes for today's date, so you can see where today sits in the year. The gauge reads the river, not the brink, so treat it as the trend rather than a turnstile.
It narrows across its ledge in dry summers but never leaves. The gauge on this page makes the check a ten second job.
Wadsworth Falls State Park (Connecticut State Parks). The falls area is intended for short visits to view the scenic falls, in the park's words, with swimming and picnicking prohibited there; the park proper offers 4.5 miles of trails and a separate designated swimming area. Trail status, closures and safety rules are theirs, and their page is linked on this one; nothing here overrides what they publish.
In their own words: "swimming and picnicking are prohibited at the Big Falls — it is an area intended for short visits to view the scenic falls." That sentence is Wadsworth Falls State Park (Connecticut State Parks)'s, quoted verbatim, and their page is the place to check before you go.
Yosemite Falls in May, running on snowmelt that will be gone by late summer. The National Park Service tells visitors the falls can be dry by August, which is why every falls page here starts from its watershed. “Tourists below Yosemite Falls (39832011431)” by Mike McBey, CC BY 2.0
Connecticut's showpiece: 250 feet of cascades stepping down to the Housatonic, with the state's own page saying exactly when to come, spring snowmelt, and when else, right after a storm.
Flow windows are typical-year climatology drawn from the driver and the agency language quoted above, not forecasts. Live readings and per-date percentiles are U.S. Geological Survey data, public domain; the above-or-below-typical line is our comparison and is labelled as such. Access, trail and safety information belongs to Wadsworth Falls State Park (Connecticut State Parks). National picture: waterfall season across the US → Hero image: “Great Falls of the Potomac River in November, 2012” — National Park Service — Public domain
Places to stay