Therman Madeira Switchback Trail
The Therman Madeira Switchback Trail is a 1.24-mile segment of the Schuylkill River Trail in northern Berks County, linking the Kernsville Dam Trailhead with the Borough of Hamburg. Its switchbacks carry walkers, runners and cyclists between the riverside corridor and town without using vehicle roadways.

Therman Madeira Switchback Trail at a glance
About Therman Madeira Switchback Trail
The Therman Madeira Switchback Trail is a 1.24-mile segment of the Schuylkill River Trail located in northern Berks County, Pennsylvania. It connects the Kernsville Dam Trailhead with the Borough of Hamburg, serving as a link between the recreation area along the river and the town's streets, shops and neighborhoods. Though short in distance, the switchback section functions as an important piece of connective tissue in the larger trail network, allowing walkers, runners and cyclists to move between the riverside corridor and Hamburg without traveling along vehicle roadways.
The segment sits within what is formally designated the John B. Bartram Section of the Schuylkill River Trail. That section begins at a trailhead with a parking lot adjacent to the Desilting Monument and continues upriver for roughly six miles, currently terminating at the Schuylkill River. The Therman Madeira Switchback Trail occupies the upper end of this stretch, where the terrain requires a series of switchbacks to manage the change in elevation between the river bottom and the borough above.
Location and Access
Access to the trail is available from two primary points. The southern approach begins at the trailhead parking lot next to the Desilting Monument, where visitors will find space to leave a vehicle before heading upriver. The Kernsville Dam Trailhead provides the more direct access to the switchback portion itself, placing users at the base of the climb toward Hamburg. From the Hamburg end, the trail can be reached on foot from the borough, which makes it practical for residents who want to walk or ride to the river without driving.
Hamburg is situated along the Schuylkill River at the foot of Blue Mountain, near the Interstate 78 corridor and Route 61. That position places the trail within reach of travelers passing through the Lehigh Valley and Reading areas, as well as residents of surrounding townships in Berks and Schuylkill counties. There is no street address or telephone number associated with the trail itself, since it is a public recreational corridor rather than a staffed facility. Information about conditions, closures and improvements is generally distributed through the organizations and municipalities that maintain the broader Schuylkill River Trail system.
The Switchback Section
The switchback design is the defining feature of this portion of the trail. Rather than ascending in a single steep push, the path doubles back on itself in a sequence of graded turns, reducing the slope at any given point and making the climb manageable for a wider range of users. Switchback construction is a common technique on trails that must gain elevation across a limited horizontal distance, and it also helps limit erosion by keeping water from running straight down the tread.
Users moving from the Kernsville Dam Trailhead toward Hamburg should expect a steady uphill grade, with the reverse direction offering a descent back toward the river. The 1.24-mile length makes it a short outing on its own, but it is frequently combined with the longer riverside miles of the John B. Bartram Section for a more substantial walk or ride.
Historical Background
The landscape surrounding this part of the trail is shaped by one of the largest environmental cleanup efforts in Pennsylvania history. For decades, coal silt washed downstream from the anthracite region to the north, clogging the Schuylkill River and raising its bed. Beginning in the mid twentieth century, the Commonwealth undertook a major desilting project to dredge the accumulated culm and restore the river's channel. Desilting basins and related structures, including the dam at Kernsville, were built as part of that work. The Desilting Monument near the trailhead commemorates that undertaking and the people who carried it out.
The Schuylkill River Trail itself grew out of a long term regional effort to create a continuous recreational corridor following the river from Philadelphia toward the coal country of Schuylkill County. Sections have been completed in stages over many years, often on former rail beds, canal towpaths and reclaimed industrial land. The Berks County segments around Hamburg represent some of the northern reaches of that ongoing project, and connecting pieces such as the switchback trail are what gradually tie isolated stretches into a usable whole.
What to Expect on the Trail
Visitors should plan for a natural surface experience in places, with the corridor passing through river bottom woodland and rising toward the edge of town. Scenery along the broader section includes views of the Schuylkill River, the Kernsville Dam area and the ridgeline of Blue Mountain to the north. Wildlife sightings are common, particularly birds along the water and in the wooded buffer.
- Trail length: approximately 1.24 miles for the switchback portion
- Connects: Kernsville Dam Trailhead to the Borough of Hamburg
- Parent corridor: Schuylkill River Trail, John B. Bartram Section
- Parking: available at the trailhead lot beside the Desilting Monument
- Typical uses: walking, hiking, running, cycling and nature observation
- Terrain: graded switchbacks with elevation change between the river and the borough
Practical Information for Visitors
Because the trail has no on site staff, visitors should come prepared. Carrying water, wearing appropriate footwear and checking the weather in advance are all advisable, especially during warmer months or after heavy rain, when sections of a riverside corridor can be soft or temporarily affected by high water. Cyclists sharing the path with pedestrians should announce themselves when passing, and all users benefit from staying on the established tread rather than cutting across switchback turns, a practice that accelerates erosion and damages the trail surface.
The corridor is also well positioned for combining with other outdoor destinations in the area. Hamburg serves as a gateway to Blue Mountain, the Appalachian Trail and the ridge top overlooks that draw hikers to this part of Berks County, while the borough itself offers places to eat and resupply within walking distance of the trail's upper end.
Role in the Regional Trail Network
Connector trails rarely receive the attention given to long distance routes, but they determine whether a network is actually usable for everyday travel. By linking the Kernsville Dam area to Hamburg, the Therman Madeira Switchback Trail gives residents a non motorized route to the river and gives trail travelers a practical point to enter or exit the corridor. As additional segments of the Schuylkill River Trail are completed to the north and south, this short climb between the river and the town is likely to see continued use from both local walkers and visitors exploring the broader greenway.
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