Although water powered mills did play an important role in American history, it is now known that many of these abandoned structures have had dramatic impacts on the waters in which they were built. Beran Environmental Services has positioned itself as a leading expert in dam removal and stream restoration, working closely with landowners, non-profit organizations, and the regulatory community. Our team of scientists, engineers, and construction specialists offer a full suite of services that address the chemical, physical, and biological alterations associated with dams and their impoundments. We provide stream and watershed assessments, macro-invertebrate surveys, land surveys, engineering and design, permitting, sediment sampling, dam removal, and a host of restoration capabilities.
Below are just a few of our many successful dam removal and stream restoration projects.
The Cussewago Dam, located in Meadville, Pennsylvania was removed by Beran Environmental Services in the Fall of 2023. Populations of pugnose minnow were discovered upstream from the dam's location. This species of minnow which deep rooted aquatic vegetation as viable habitat. As a result, Beran Environmental Services took precautions during the removal to manage water levels so that viable habitats would not be threatened. Sediments from the dam removal, along with rip-rap were then used post-demolition to stabilize the surrounding streambank.
Patton Dam was a low head dam located on Chest Creek, a tributary of West Branch Susquehanna River and Approved Trout Water. The dam was considered a threat to public safety and an impediment to aquatic life. The removal of Patton Dam was completed in several stages, including removal of a metal walkway, a concrete cap with underlying fill material, and metal sheet pilings.
Following removal of the Patton Dam in 2019, the impounded sediments began to mobilize and expose the remains of a previously breached dam approximately 100’ upstream of the removed dam. The rubble consisted mainly of several large block-like pieces of concrete that had been slightly displaced by the current but were too large to be transported. The in-stream concrete rubble was deflecting the normal flow of Chest Creek and preventing natural channel development below the rubble. Additionally, there was the remains of the footer from the dam that was functioning as a stationary “head cut”. BES removed the remaining rubble and footer from Chest Creek to correct the stream flow.
BES designed, permitted, and removed three large dams located on Dunbar Creek, a reproducing trout stream, formerly used for an industrial water supply. The dams spanned a broad valley resulting in significant legacy sediment accumulation and the rerouting of the stream due to several breeches. The dams were removed over a period of three years. Following removal, significant instream habitat work, and streambank stabilization were implemented. BES worked with American Rivers, the PA Game Commission, and Western Pennsylvania Conservancy to accomplish a successful outcome.
BES removed this sheet piling structure utilizing the design prepared by the Bureau of Facility Design and Construction, PA DCNR. BES worked with the PA DCNR to determine the best approach to remove this structure due to site constraints related to wetlands. Removal of this structure has re-established the connectivity of the stream for sucker migration that was previously managed by gate openings.
BES completed the design and removal of this structure coordinating with the Camp Allegheny Salvation Army. BES finished the project in time to accommodate the camping season.
Smethport Reservoir Dam was located on Blacksmith Run, a small stream with naturally reproducing wild trout. The dam was considered a threat to public safety and impediment to native trout.
BES completed a restoration plan, breech, removal, and riparian enhancement.
Through a partnership with American Rivers and Eastern Brook Trout Joint Venture, an upstream culvert was replaced with a bottomless arch culvert to further encourage passage of native brook trout.
BES designed and removed Eckenrode Mill Dam, a former ice dam, working with PADOT, American Rivers, and the Cambria County Conservation District.
The dam was removed working under a PADOT bridge with a mini-excavator and hydraulic hammer. Following removal, the streambank restoration was implemented.
Ellsworth Dam located on Pigeon Creek, was trapping sediment and debris as well as diverting stream flows toward a railroad embankment.
BES completed a restoration design, dam removal and concurrent sediment removal, and a stream re-alignment.
BES removed the Firepond Dam, a former fire department intake impoundment.
The removal involved sediment removal, streambank stabilization, and instream structure and stream channel improvement.
BES worked with the US Forest Service and American Rivers on this project.
BES designed, permitted, and removed a wooden and steel dam structure, capable of expanding in height, to restore the connectivity of the Connoquenessing Creek. This structure was removed using hand-tools only as access to the dam by equipment was not possible.
The Bendigo Dam was located in Bendigo State Park across the East Branch Clarion River - an approved trout water which is stocked by PA Fish and Boat Commission.
This approximately 200-foot long cut-stone and concrete dam not only interrupted the natural flow dynamics of the stream but had also begun to deteriorate sufficiently to create safety concerns.
Following drawdown, sediment was removed from the eastern bank and areas around the thalweg to reduce the mobilization and downstream transport of sediments as part of a sediment management plan.
A modified mud sill cribbing was constructed to stabilize the banks and provide fishing access.
A rock cross vane was installed at the convergence of two channels, directing the thalweg closer to the fishing pier and cribbing to improve fish habitat and increase public angling opportunities.
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