Stream Restoration and Stabilization

Stream Restoration and Stabilization Services

Specializing in:

  • Aquatic habitat enhancement
  • Sediment transport analysis
  • Natural Channel Design
  • Geomorphic and habitat assessments
  • Stream crossing replacements
  • Fish passage
  • Streambank stabilization
  • Bio-engineering
  • Engineered log jams and woody revetments
  • Dam removal and sediment management
  • Floodplain restoration
  • Stormwater Pollution Prevention Plans
  • Erosion & Sedimentation Control Plans
  • Urban Runoff Reduction Plans
  • Storm Drainage Design
  • Watershed Studies
  • SWPPP Inspections
  • Expert Opinion & Testimony


At Woidt Engineering and Consulting, we leverage our experience in water resources engineering, fluvial geomorphology, stream biology, and public outreach to work collaboratively with diverse stakeholders to deliver effective, resilient, and sustainable projects that restore streams and improve aquatic ecosystems. Our experience spans all phases of a project including assessment, grant and funding procurement, design, permitting, and construction administration. Our clients include non-profits, private entities, utilities, and municipal and state agencies located throughout the Northeast and Ohio. Our projects have included sediment transport hazard assessments to protect critical infrastructure, culvert replacement to restore fish passage, and stream restoration projects to stabilize failing streambanks and incising streams, improve aquatic habitat and water quality, and restore hydrologic connectivity.

Our philosophy prioritizes geomorphic sustainability and working with nature, not against it. Completed projects emphasize the use of natural materials to meet restoration goals including the use of woody materials and bioengineering methods. We understand that site constraints often require different treatments and we are also well versed in the use of traditional stabilization methods using rock revetment, grade control, and flow deflection structures. Using a combination of natural and traditional stabilization methods, we have successfully designed projects to balance risk and achieve project goals across the Northeast in water systems ranging from small urban creeks to wild and scenic rivers.

Representative Projects


Salmon Kill Habitat Restoration and Enhancement,
Town of Salisbury, CT

East Hills Living Center, Binghamton, NY

This project involved restoration and enhancements to the riparian corridor and in-stream habitat of the Salmon Kill through engagement of the local community and adjoining landowners. The project included field geomorphic and habitat investigations whose recommendations informed the locations and details of restoration activities. Cost effective locations for restoration activities were identified to create pockets of stable and productive habitat features throughout the 5.2 mile project corridor. Restoration activities were designed to provide immediate and long term instream and riparian cover for coldwater fish species, to increase the amount of accessible spawning gravel, and to create thermal refuge during periods of warm water temperatures. Project features included anchored logs that deflect flow and harden eroding banks, in turn creating a stable and diverse riparian corridor that will benefit fish populations.

Project Work Elements

Project Completion Date

Summer 2017 (estimated)


Susquehanna River Restoration and Water Quality Improvement, Broome County, NY

Mirabito SWPPP, Castle Creek, NY

Binghamton-Johnson City Joint Sewage Water Quality Improvement Project (WQIP), Vestal, NY
Channel incision and bank erosion has increased sediment delivery from the steep-gradient Fuller Hollow Creek to the Susquehanna River where a gravel bar has formed at the confluence. This gravel bar has partially-buried the effluent discharge from the Binghamton-Johnson City Joint Sewage Treatment Plant (BJCJSTP) which has caused the stagnation of the effluent discharge and led to several water quality exceedances. Working in concert with upgrades to the BJCJSTP, Woidt Engineering and Consulting procured grant funding for the WQIP with the intent to improve water quality by re-grading the gravel bar and installing in-river woody structures to restore and maintain connectivity of the effluent discharge to the Susquehanna River while also reducing the erosion of the mid-channel islands. Riverflo2D was used for two-dimensional hydraulic modeling of the WQIP to optimize the project design to increase the sediment transport capacity of the Susquehanna River, reduce long-term maintenance needs, and create a new mid-channel island. In addition to grant procurement and construction document development, Woidt Engineering and Consulting also acquired project permits (Section 401, Section 404, and floodplain development) and provided construction management services. Project Owner: Binghamton-Johnson City Joint Sewage Board.

Project Work Elements

Project Completion Date

2018


Cannonbrook Farms EQUIP Streambank Restoration Project, Tompkins County, NY

Broome County Public Safety Building, Binghamton, NY

This project involved protecting productive farm soils from erosion which occurred when Six Mile Creek in Caroline, Tompkins County jumped its banks (avulsed) and undermined the high bank. The design featured a geomorphic investigation to determine the water surface elevation during the channel forming flood event (bankfull flow). The stream was then aligned away from the farm fields and turned into a floodplain that would flood during the bankfull event. The project featured Natural Channel Design features (cross vanes, vanes) to maintain channel alignment. An engineering log jam was designed to prevent the stream from jumping its banks again while maintaining the stream’s connectivity to its floodplain. The constructed floodplain was protected with logs and bioengineering thickets that allowed floodwaters to be conveyed through the floodplain but also reduced the water velocity, preventing erosion and encouraging deposition of fine sediments. Construction documents (plans, specifications, and construction cost estimates) were developed and construction inspection services were provided. The project was funded by and designed to meet National Resource Conservation Service specifications and standards.

Project Work Elements

Project Completion Date

Fall 2016


Dry Brook Culvert Replacement, Town of Colchester, NY

Port Dickinson & Vestal, NY Hydrologic and Hydraulic Analysis

A four foot diameter circular metal pipe created hydraulic conditions that led to the lowering of Dry Brook’s channel bottom downstream of the pipe. This resulted in a perched culvert blocking aquatic organism passage. The project involved replacing the culvert with a prefabricated timber bridge. The bridge was supported with a pinned rock wall and protected with step pool grade control structures (grade control structures) which were designed to pass Eastern Brook Trout during biologically critical times.

Project Work Elements

Project Completion Date

October 2014