Dam No. 7 – The Hidden Weir of Kittanning, Pennsylvania
Discover the quiet charm of a historic river structure that’s off the beaten path, yet perfect for a day of exploration, photography, and riverside relaxation.
Introduction
If you think Pennsylvania’s outdoor attractions are limited to the rolling hills of the Poconos or the bustling streets of Philadelphia, think again. Nestled along the Allegheny River in the small borough of Kittanning lies Dam No. 7, a modest‑sized weir that blends engineering history with natural beauty. Though it doesn’t boast the height of a major hydro‑electric dam, its 20‑foot fixed‑crest and 916‑foot length make it a striking feature on the river’s horizon. For road‑trippers, history buffs, and nature lovers alike, Dam No. 7 offers a peaceful spot to stretch your legs, snap a few photos, and learn a little about the region’s waterway heritage.
About Dam No. 7
What Is It?
Dam No. 7 is a fixed‑crest weir—a low barrier that raises the water level upstream without the complex gate systems of larger dams. Built primarily of gravel‑filled cylindrical sheet piling, the structure rests on a gentle 1:2 slope and includes a moderate downstream apron that helps dissipate water energy. The weir’s crest sits roughly 20 feet above the riverbed, while the overall length stretches 916 feet, creating a broad, uniform spillway that is easily visible from the riverbank and nearby roadways.
Historical Context
The weir forms part of a series of river control structures that were installed in the early‑to‑mid‑20th century to aid navigation, flood control, and local industry along the Allegheny. While detailed archival records for Dam No. 7 are scarce—there is no dedicated Wikipedia page—the design elements (timber‑piled locks, sheet‑pile foundations) point to construction techniques common in the 1930s and 1940s. These structures were essential for maintaining a navigable waterway for barges carrying coal, steel, and other commodities that powered western Pennsylvania’s industrial boom.
Why It Matters
Beyond its functional role, Dam No. 7 serves as a tangible reminder of the region’s engineering legacy. The weir’s fixed‑crest design is a classic example of low‑impact water management, allowing fish passage and preserving the river’s natural flow patterns better than high‑head dams. For anglers, kayakers, and birdwatchers, the slightly elevated water creates calm eddies and riffles that attract a variety of wildlife, making the site a subtle hotspot for outdoor recreation.
How to Get There
By Car
- From Pittsburgh: Take I‑76 (the Pennsylvania Turnpike) east to Exit 45 (U.S. Route 422). Follow US‑422 east for roughly 30 minutes, then turn south onto PA‑28 toward Kittanning. The weir sits on the south side of town, just off River Road (PA‑66). The total drive is about 55 miles and takes roughly 1 hour 15 minutes depending on traffic.
- From Harrisburg: Head north on I‑81, then take I‑76 east to the same Exit 45 and follow the directions above.
Parking: Small roadside pull‑outs are available along River Road. Look for the paved area near the bridge that crosses the Allegheny River; it’s the most convenient spot for a quick stop.
By Public Transportation
Kittanning is served by Greyhound and Amtrak (via the nearby Kittanning Amtrak Station on the Pennsylvanian line). From the station, a short taxi ride (approximately 5 minutes) will bring you to the weir. While public transit options are limited, the short taxi fare makes it a viable choice for those without a car.
By Bike or Foot
For the adventurous, the Allegheny River Trail runs parallel to the river and provides a scenic, paved route for cyclists and walkers. The trail’s Kittanning segment ends near the weir, offering a pleasant riverside approach for those who enjoy a bit of exercise before their visit.
Best Time to Visit
| Season | What to Expect | Why It’s Ideal |
|---|---|---|
| Spring (Mar‑May) | Rising water levels, blooming wildflowers, active birdlife. | The river’s flow is moderate, creating gentle rapids that are perfect for photography and casual kayaking. |
| Summer (Jun‑Aug) | Warm temperatures, longer daylight hours. | Ideal for picnics on the riverbank and sunset shots over the weir. |
| Fall (Sep‑Nov) | Vibrant foliage, cooler breezes, lower water levels. | The surrounding hills turn brilliant shades of orange and red, making the weir a picturesque backdrop. |
| Winter (Dec‑Feb) | Quiet, occasional ice formation on the water. | If you enjoy serene, snow‑covered landscapes, winter offers a tranquil, less‑crowded experience. |
Pro tip: Mid‑week visits during shoulder seasons (late spring or early fall) usually mean fewer crowds and optimal lighting for photos.
What to Expect
When you arrive at Dam No. 7, you’ll be greeted by a broad, low‑profile concrete crest that gently lifts the Allegheny’s water. The gravel‑filled sheet piling is visible along the upstream face, giving the structure a rugged, industrial aesthetic. The surrounding riverbank is a mix of grassy meadows and shallow woodlands, providing natural seating and shade.
- Photography: The weir’s linear shape makes for striking leading‑line compositions, especially at sunrise or sunset when the light paints the water gold. Capture the contrast between the smooth water surface and the textured sheet piles.
- Birdwatching & Wildlife: Look for great blue herons, kingfishers, and bald eagles that often perch on the nearby trees. The calm pools downstream attract brook trout and other small fish.
- Recreation: While swimming is not recommended due to the current, the area is popular with kayakers who launch from the downstream side and glide under the weir’s modest drop. A short stretch of the river downstream offers gentle rapids suitable for beginners.
- Historical Interest: Take a moment to read the informational plaque (if present) that explains the weir’s construction and its role in river navigation. The timber‑piled locks, though no longer in operation, hint at a bygone era of river commerce.
Nearby Attractions
Exploring the region around Dam No. 7 adds depth to your day trip. Here are a few must‑see spots within a short drive:
- Fountain (5.4 km) – A charming public fountain set in a small park, perfect for a quick coffee break.
- Dam No. 8 (9.4 km) – Another historic weir that showcases a slightly different engineering style; great for comparative photography.
- Unnamed Dam (9.5 km) – A small dam that creates a tranquil pond ideal for picnicking.
- Crooked Creek Dam (11.6 km) – A larger structure surrounded by hiking trails and fishing access points.
- Dam No. 6 (12.2 km) – The upstream sibling of Dam No. 7, offering similar scenery with fewer visitors.
Each of these sites is reachable within a 15‑minute drive, making them perfect for a leisurely afternoon itinerary.
Travel Tips
- Bring a Picnic: There are no formal visitor facilities at the weir, so pack a lunch, water, and a blanket. The riverbank provides ample space for a relaxed meal.
- Dress for the Weather: Even in summer, the river’s breeze can be cool. Layered clothing and a wind‑breaker are advisable.
- Footwear Matters: Sturdy, waterproof shoes are best, especially if you plan to explore the downstream apron or walk along the river’s edge.
- Safety First: The water depth varies, and currents can be swift near the weir. Keep a safe distance from the edge, especially with children.
- Leave No Trace: The area is relatively undeveloped, so carry out all trash and respect the natural habitat.
- Photography Gear: A wide‑angle lens captures the full span of the weir, while a polarizing filter reduces glare on the water surface.
- Check Road Conditions: Winter snow or spring flooding can affect River Road access. A quick call to the Kittanning municipal office or a glance at the Pennsylvania Department of Transportation website can save you a detour.
Ready to Experience Dam No. 7?
Whether you’re tracing the industrial arteries of Pennsylvania’s river network, hunting for quiet riverfront views, or simply looking for a new spot to unwind, Dam No. 7 in Kittanning delivers a blend of history, nature, and low‑key adventure. Pack your camera, hop in the car, and discover why this modest weir is a hidden gem worth adding to your Pennsylvania travel list.
Happy travels, and may your river explorations be as smooth as the flow over Dam No. 7!