What You'll Find on the Pattagansett River

The Pattagansett River flows through southeastern Connecticut in the towns of Voluntown and Griswold before joining the Quinebaug River. It's a small, rocky stream that holds largemouth bass, smallmouth bass, and sunfish in its slower pools, with brook trout in the upper reaches during cooler months. The river is narrow — typically 20 to 40 feet wide — and lined with trees and brush, which makes it ideal for wading and fly fishing but challenging for boat traffic. Access is limited compared to larger Connecticut rivers, and much of the land along the banks is private, so knowing where you can legally fish matters before you go.

The Pattagansett is best known among local anglers for smallmouth bass in late spring and early summer, when the water warms and the fish move into shallower structure. The rocky bottom and current create habitat that smallmouth prefer, and the river's small size means you can cover productive water on foot in a single outing. Sunfish are abundant year-round and provide reliable action for beginners or anyone looking for a quick, easy day.

Key Takeaways

  • The Pattagansett holds smallmouth bass, largemouth bass, and sunfish, with brook trout in upper sections during spring and fall.
  • Public access is limited; the main legal entry points are at the Route 14 bridge in Voluntown and at Pachaug State Forest, both requiring you to park carefully and respect private property boundaries.
  • Connecticut fishing regulations require a license for anyone 16 and older, and the Pattagansett follows statewide seasons: smallmouth bass season runs mid-May through November, and trout season opens in April.
  • The river is best fished by wading; water levels fluctuate with rainfall, so check conditions before driving out, especially in summer when flow can drop significantly.
  • Smallmouth bass fishing peaks from late May through July when water temperatures reach the mid-60s to low 70s Fahrenheit.

Seasons and Water Conditions

Spring (April through May) brings brook trout to the Pattagansett's upper sections as water temperatures climb from the 40s into the 50s. This is the best window for trout; by early June, warming water pushes them deeper or downstream toward the Quinebaug. Smallmouth bass begin to feed actively in mid-May as water reaches the upper 50s, and this period through early July is prime time for sight-casting to visible fish in shallow runs and around rocks.

Summer (June through August) is when the Pattagansett becomes a smallmouth river. Water temperatures in the 60s and low 70s put bass in aggressive feeding mode, and early morning or late evening sessions produce the most consistent results. By mid-July, flow often drops noticeably — the river can shrink to a narrow, slow creek in dry years — which concentrates fish in deeper pools but also makes them more cautious. Sunfish bite reliably all summer and are the easiest species to catch.

Fall (September through October) brings cooler water and renewed smallmouth activity as temperatures drop back into the 60s. This is often overlooked but can be excellent; fewer anglers are on the water, and bass feed heavily in preparation for winter. By November, smallmouth season closes, and the river becomes quieter. Winter (December through March) sees minimal fishing activity; water is cold, flow is unpredictable, and access is harder due to weather.

Where to Access the River

Public access to the Pattagansett is scarce. The most reliable entry point is at the Route 14 bridge in Voluntown, where a small pull-off allows parking for a few vehicles. From here, you can wade upstream or downstream; upstream leads to narrower, shallower water with more current, while downstream widens slightly and holds deeper pools. Respect the private property signs — much of the land is posted, and trespassing will close access for everyone.

Pachaug State Forest, also in Voluntown, offers another access point. The forest has parking and trails that lead to the river, though the walk can be a quarter-mile or more depending on which trail you take. This access is less crowded than the Route 14 bridge and gives you more river to explore, but you'll need to plan for the walk in and out. Check the Connecticut Department of Energy and Environmental Protection (DEEP) website for current trail conditions and any seasonal closures.

A third option is to contact local landowners directly if you see property that looks fishable. Some private owners allow access for a small fee or simply for asking politely. This requires legwork but can open up sections of river that public access doesn't reach. Never assume a bridge crossing or a visible bank means you can fish there — always confirm access before wading.

Species and What to Expect

Smallmouth bass are the primary target for most anglers on the Pattagansett. They range from 8 to 14 inches on average, with occasional fish pushing 16 inches. They prefer rocky structure, current breaks, and deeper pools, especially during the heat of summer. Smallmouth respond well to small crankbaits, soft plastics, and live crayfish. Fly fishing with small streamers (size 2 to 4) is effective and suits the river's intimate size.

Largemouth bass are present but less common than smallmouth. They favor the slower, weedier sections and deeper pools. Largemouth here typically run smaller than smallmouth — 6 to 12 inches — and are more scattered throughout the river. They're easier to catch on topwater lures and soft plastics worked slowly through vegetation.

Brook trout inhabit the upper reaches and are most abundant in spring (April and May) and again in fall (September and October) when water cools. They're small — usually 6 to 9 inches — and respond to small spinners, wet flies, and live insects. Trout season in Connecticut opens April 1, so you can fish for them immediately when water conditions allow.

Sunfish (bluegill, pumpkinseed, and redear) are abundant and bite readily on small jigs, crickets, and worms. They're present year-round and provide reliable action for beginners or anyone wanting a relaxed outing. Sunfish are also good eating if you want to keep a few for dinner.

Regulations and Licensing

Connecticut requires a fishing license for anyone 16 years old and older. You can purchase a license online through the DEEP website, at sporting goods stores, or at town clerk offices. A one-day license costs less than a full-year license and is a good option if you're visiting for a single trip. Licenses are valid immediately upon purchase if you buy online.

Smallmouth bass season runs from the third Saturday in May through November 30. The minimum length is 12 inches, and there is no daily creel limit, though most anglers practice catch-and-release on smaller fish. Brook trout season opens April 1 and runs through October 31, with a minimum length of 7 inches and a daily limit of 15 fish. Largemouth bass follow the same season and size restrictions as smallmouth. Sunfish have no closed season and no size or creel limit.

Check the current Connecticut fishing regulations on the DEEP website before you go; regulations can change year to year, and it's your responsibility to know what's in effect. The regulations booklet is free and available online or at license vendors.

Gear and Tactics for the Pattagansett

A 5- to 6-foot spinning rod with 6- to 8-pound test line is ideal for this small river. Shorter rods are easier to manage in tight spaces with overhanging branches, and lighter line lets you cast small lures without fatigue. If you fly fish, a 4- or 5-weight rod with a floating line and a 7- to 9-foot leader works well for the Pattagansett's current and structure.

For smallmouth, carry a mix of small crankbaits (1/4 to 1/2 ounce), soft plastics (3 to 4 inches), and crayfish imitations. Topwater lures work in early morning and evening. For trout, small spinners (size 0 or 1) and wet flies in olive, brown, and black are reliable. Sunfish will take almost anything small and bright — small jigs, crickets, or worms under a bobber.

Wading is the primary way to fish the Pattagansett. Wear wading boots with good grip; the rocks are slippery and the current can be deceptive in deeper sections. Wade slowly and deliberately, watching for drop-offs and deeper pools. Early morning and late evening are best for bass; midday can be slow, especially in summer. Overcast days often produce better than bright, sunny days.

When Water Levels Make a Difference

The Pattagansett's flow varies significantly with rainfall. After heavy rain, the river rises quickly and becomes murky, which can make fishing difficult for a day or two. After the water clears — usually within 24 to 48 hours — fishing often improves because fish feed more actively in slightly stained water. During dry spells in summer, flow drops sharply, and the river can become a series of isolated pools connected by shallow riffles. In these conditions, fish concentrate in the deepest pools, making them easier to locate but also more pressured.

Check a local weather forecast and recent rainfall before you drive out. If it's rained heavily in the past 24 hours, the river may still be high and off-color. If it's been dry for a week or more, expect low water and plan to fish early or late when light is low and fish are less spooky. The USGS maintains a stream gauge for the Quinebaug River (the Pattagansett's larger neighbor), which gives you a sense of regional flow conditions.

Frequently Asked Questions

Do I need a license to fish the Pattagansett?

Yes, if you're 16 or older. Connecticut requires a fishing license for anyone fishing in state waters. You can buy a one-day license online or at a sporting goods store for less than the cost of a full-year license. The license is valid immediately upon purchase online.

What's the best time of year to fish here?

Late May through July is peak season for smallmouth bass when water temperatures are in the 60s and low 70s. Spring (April and May) is best for brook trout. Fall (September and October) is often overlooked but offers excellent smallmouth fishing with fewer anglers on the water. Sunfish bite reliably all year.

Can I fish the Pattagansett with a boat?

The river is too small and rocky for most boats. Kayaks and canoes can navigate it in higher water, but access points are limited and portaging around shallow sections is common. Wading is the standard approach and gives you better control in tight spaces.

Where exactly can I park and access the river?

The Route 14 bridge in Voluntown has a small pull-off for parking. Pachaug State Forest also offers parking and trail access. Both locations require you to respect private property signs. Always confirm access before you fish; much of the land along the banks is private and posted.

What should I do if the water is too high or too low?

High water after rain makes fishing difficult for a day or two; wait for the water to clear. Low water in summer concentrates fish in deeper pools, so focus on the deepest holes you can find. Check recent rainfall and stream conditions before driving out to avoid a wasted trip.