Protecting Natural and Biological Resources

The strategies we develop for our clients rely on the integration of our core competencies in FERC Hydro Permitting, fisheries biology, fisheries engineering, hydrology and hydraulic engineering, consulting, design, and research and development. Our engineers and scientists work closely together to ensure designs are biologically effective, feasible to construct, operate, and maintain, and are cost effective—all while meeting regulatory requirements and being mindful of location specific siting and cultural concerns. 

We take the time necessary to research the historical and current uses of your property to better understand known or potential impacts to environmental media including soil, groundwater, drinking water, surface water, sediments, and air. With this understanding, we can better help you understand the complexities of your project.

 


Our Services

ICON_ENVPL_BIOLO
Biological Resources

Providing healthy living landscapes that include botany, terrestrial, and aquatic wildlife.

ICON_ENVPL_CULTU
Cultural Resources

Helping clients navigate the regulatory framework required for responsible stewardship of cultural resources.

ICON_ENVPL_ECOLO
Ecology

Restoring wetlands, riparian, and aquatic systems in our coastal communities for a more sustainable and resilient future.

ICON_ENVPL_FISHPAS
Fish Passage Design, Modeling, & Testing

For both upstream and downstream passage for a multitude of species.

ICON_ENVPL_FISHPRT
Fish Protection Design, Modeling, & Testing

Research & Development, Evaluation, and Design of Fish Screening Facilities.

ICON_ENVPL_FISHTEST
Fish Testing

For Biological and Engineering Performance.

ICON_ENVPL_FISHENG
Fisheries Engineering

For licensing and project permitting requirements.

ICON_ENVPL_IMPACT
Impact Assessment, Planning & Permitting

Helping our clients implement a permitting strategy, including the development of schedules and mitigation plans to expedite permitting and compliance.

ICON_ENVPL_HYDROL
Water Quality & Hydrology

Supporting innovative solutions with numeric modeling expertise for hydrologic, water quality, and environmental monitoring and reporting.

ICON_ENVPL_MARINE
Water Quality & Hydrology (Marine)

Thoughtful and innovative planning to address the unique challenges associated with supplying water for beneficial use without adverse
impact to the environment or other legal water users.

ICON_ENVPL_WETLA
Wetlands

Expertise in habitat assessment and mapping, wetlands jurisdictional line delineations, threatened and endangered species, mitigation planning, and design.

Recent Projects

{id=62146090128, createdAt=1639754792949, updatedAt=1646949527038, path='fort-dupont', name='Fort DuPont', 1='{type=string, value=Fort DuPont}', 33='{type=number, value=0}', 34='{type=list, value=[{id=10, name='Civil Infrastructure', order=4, label='Civil Infrastructure'}, {id=11, name='Natural Resources & Environmental Planning', order=5, label='Natural Resources & Environmental Planning'}]}', 35='{type=string, value=Fort DuPont Redevelopment and Preservation Corp.}', 4='{type=string, value=Civil, traffic, geotechnical engineering, permitting and construction review and testing for the historic 325-acre residential community.}', 36='{type=string, value= Fort DuPont}', 5='{type=list, value=[{id=16, name='Real Estate', order=1, label='Real Estate'}]}', 37='{type=list, value=[{id=83, name='Site Engineering', order=34, label='Site Engineering'}, {id=87, name='Construction Services', order=38, label='Construction Services'}, {id=89, name='Coastal Engineering', order=40, label='Coastal Engineering'}, {id=114, name='Geotechnical Engineering', order=65, label='Geotechnical Engineering'}]}', 39='{type=string, value=fort-dupont}', 8='{type=string, value=

The historic 325-acre Fort DuPont site will eventually include a new residential community, ships and an entertainment center while preserving many former military buildings that date back to the 19th century. The Fort DuPont Redevelopment and Preservation Corp. plans to recreate the base as a waterfront community where residents can live amid – and in some cases in – renovated military buildings, and enjoy the close proximity of the Delaware River and the Chesapeake & Delaware Canal. Verdantas' engineers and scientists are providing traffic engineering, civil engineering, geotechnical engineering, permitting and construction review and testing.

}', 13='{type=image, value=Image{width=1200, height=927, url='https://f.hubspotusercontent40.net/hubfs/20952198/Fort-DuPont.jpg'}}', 14='{type=string, value=The master plan for Fort DuPont.}', 25='{type=number, value=1}', 27='{type=number, value=0}'}
The master plan for Fort DuPont.
Civil Infrastructure | Natural Resources & Environmental Planning
Fort DuPont

Civil, traffic, geotechnical engineering, permitting and construction review and testing for the historic 325-acre residential community.

{id=81434707844, createdAt=1659989261084, updatedAt=1660064841317, path='cleveland-metroparks-bonnie-park', name='Cleveland Metroparks Bonnie Park Restoration and Site Improvement', 1='{type=string, value=Bonnie Park Restoration and Site Improvement Project | Mill Stream Run Reservation}', 33='{type=number, value=0}', 34='{type=list, value=[{id=11, name='Natural Resources & Environmental Planning', order=5, label='Natural Resources & Environmental Planning'}]}', 35='{type=string, value=Cleveland Metroparks}', 4='{type=string, value=Verdantas served as lead designer on the Design-Build team for Cleveland Metroparks for the Bonnie Park Ecological Restoration and Site Improvement Project located at Mill Stream Run Reservation in Strongsville. }', 36='{type=string, value=Strongsville, Ohio}', 5='{type=list, value=[{id=19, name='Government', order=4, label='Government'}]}', 37='{type=list, value=[{id=104, name='Wetlands', order=55, label='Wetlands'}]}', 8='{type=string, value=

Verdantas served as lead designer on the Design-Build team for Cleveland Metroparks for the Bonnie Park Ecological Restoration and Site Improvement Project located at Mill Stream Run Reservation in Strongsville. Our team designed, permitted, and performed construction and planting for the Metroparks project. Work was funded by the Ohio EPA Water Resource Restoration Sponsor Program (WRRSP).

Project goals were to complete river restoration and floodplain reconnection through the removal of a historic lowhead mill dam located in-line with the East Branch of the Rocky River (EBRR). The objective of this goal was to restore the Warmwater Habitat (WWH) status of the EBRR by improving sediment transport, fish migration and colonization. The lowhead dam was a migration barrier for fish and promoted sedimentation that negatively affected the macroinvertebrate populations within the stream corridor.

To achieve these goals, the restoration design included removal of the dam and establishment of natural stream profile and pattern by incorporating boulder riffle and pools through the previously impounded river area and through the demolished dam area. The stream banks of the EBRR were restored through the establishment of floodplain bankfull benches by removing existing gabion baskets and the grading of eroded banks. An existing undersized culvert under the main entrance’s road running across the floodplain was replaced with a large 3-sided culvert to provide floodplain connectivity to wetlands within the EBRR floodplain. The restoration also includes the creation of floodplain upstream of the dam in an existing mowed field and the restoration of two to three acres of wetland habitat in a former baseball field within the EBRR floodplain. Invasive species were removed within the limits of the project work including removal of invasive shrubs, trees, and herbaceous plants.

Substantial construction was completed in fall 2020 and planting was completed in winter/spring of 2021. 

 

Chronolog Timelapse

The Metroparks set up a ChronoLog for the project—a timelapse of the site, made up of photos from visitors, compiled since 2020.  View the Chronolog

}', 13='{type=image, value=Image{width=2000, height=1000, url='https://www.verdantas.com/hubfs/Projects/Bonnie-Park-Restoration/Bonnie-Park-Completed-Restoration.jpeg'}}', 14='{type=string, value=River restoration and floodplain reconnection was completed following removal of a historic lowhead mill dam.}', 15='{type=image, value=Image{width=1200, height=900, url='https://www.verdantas.com/hubfs/Projects/Bonnie-Park-Restoration/Bonnie-Park-Before-Dam-Removal.jpg'}}', 16='{type=string, value=The lowhead dam was a migration barrier for fish and promoted sedimentation that negatively affected the macroinvertebrate populations within the stream corridor.}', 17='{type=image, value=Image{width=2000, height=1000, url='https://www.verdantas.com/hubfs/Projects/Bonnie-Park-Restoration/Bonnie-Park-During-Dam-Removal.jpeg'}}', 18='{type=string, value=The restoration design included design, permitting, construction and planting to establish a natural stream profile.}', 19='{type=image, value=Image{width=1200, height=675, url='https://www.verdantas.com/hubfs/Projects/Bonnie-Park-Restoration/Bonnie-Park-Flood-Plain-During-Restoration.jpg'}}', 20='{type=string, value=A floodplain was created upstream of the mill dam.}', 21='{type=image, value=Image{width=1200, height=900, url='https://www.verdantas.com/hubfs/Projects/Bonnie-Park-Restoration/Bonnie-Park-Flood-Plain-Post-Renovation.jpg'}}', 22='{type=string, value=The restoration established several acres of wetland habitat.}', 23='{type=image, value=Image{width=1500, height=1125, url='https://www.verdantas.com/hubfs/Projects/Bonnie-Park-Restoration/Cleveland-Metro-Parks-Bonnie-Park-at-Ribbon-Cutting.jpg'}}', 24='{type=string, value=Invasive species were also removed as part of the project.}', 25='{type=number, value=0}', 27='{type=number, value=0}', 29='{type=number, value=2}'}
River restoration and floodplain reconnection was completed following removal of a historic lowhead mill dam.
Natural Resources & Environmental Planning
Bonnie Park Restoration and Site Improvement Project | Mill Stream Run Reservation

Verdantas served as lead designer on the Design-Build team for Cleveland Metroparks for the Bonnie Park Ecological Restoration and Site Improvement Project located at Mill Stream Run Reservation in Strongsville.

{id=61570585145, createdAt=1639074811235, updatedAt=1646949456402, path='doe-downstream-fish-passage-american-eel', name='Downstream Passage for Silver American Eel', 1='{type=string, value=Modular and Scalable Downstream Passage for Silver American Eel}', 4='{type=string, value=Read how Alden tested the effects of innovative downstream fish passage technologies with lab, CFD, and field analysis. Funded by the Department of Energy}', 5='{type=list, value=[{id=15, name='Energy', order=0, label='Energy'}, {id=18, name='Water', order=3, label='Water'}]}', 6='{type=list, value=[{id=17, name='Fish Passage', order=16, label='Fish Passage'}, {id=18, name='Fish Protection', order=17, label='Fish Protection'}, {id=30, name='Hydropower', order=29, label='Hydropower'}, {id=31, name='Environmental Engineering', order=30, label='Environmental Engineering'}]}', 7='{type=list, value=[{id=2, name='Numerical Modeling', order=1, label='Numerical Modeling'}, {id=5, name='Desktop Analysis', order=4, label='Desktop Analysis'}, {id=6, name='Field Study', order=5, label='Field Study'}, {id=8, name='Laboratory Testing', order=7, label='Laboratory Testing'}]}', 8='{type=string, value=

Through funding made available by the U.S. Department of Energy, Alden conducted a series of studies to evaluate and optimize the design and operation of two modular and scalable fish bypass systems developed specifically to provide safe downstream passage of silver American Eels at hydropower projects. The goal of the studies was to address the need for biologically effective and less expensive downstream fish passage technologies for silver eels. The studies were developed specifically for this fish species and life stage due to population declines in many areas of its range and the potential for mortality to occur if eels migrating to the marine environment to spawn are entrained through hydro turbines during their journey to the sea. The large size and unique behaviors of silver eels have made it difficult for dam owners to implement downstream passage measures that are both biologically and cost effective, resulting in a need for new innovative technologies.

The studies conducted by Alden included a laboratory evaluation of the biological performance of the two bypass systems, a field evaluation of biological performance conducted with full-scale bypass systems installed at the intake of a small hydro project in New Hampshire, CFD modeling of the laboratory flume and field evaluation site, and a desktop assessment of the potential for application of each technology at hydro projects within the known range of American Eel and the expected benefits (i.e., biological and economic). Few organizations have the capabilities to conduct this array of technical studies, but Alden’s scientists and engineers have been using various combinations of these approaches and methods to develop and evaluate state-of-the-art fish passage and protection systems for nearly 50 years.

Assistance with the performance and completion of these studies was provided by Lakeside Engineering (bypass design and installation) and Blue Leaf Environmental (DIDSON acoustic camera and 3D acoustic telemetry services).

 

}', 9='{type=string, value=https://20952198.fs1.hubspotusercontent-na1.net/hubfs/20952198/PROJECTS/ALDEN/DOE-Eel-Passage/Eel_Fish_Passage_2020.mp4?t=1641423507528}', 10='{type=string, value=https://20952198.fs1.hubspotusercontent-na1.net/hubfs/20952198/PROJECTS/ALDEN/DOE-Eel-Passage/Eel_Fish_Passage_Field_Study.mp4?t=1641423504203}', 11='{type=string, value=Evaluation of bypass performance with silver eels happened in both controlled laboratory settings and at a small hydro project to determine the bypass efficiency and behavioral responses, so as to optimize design and operation of the bypass systems.}', 13='{type=image, value=Image{width=1200, height=600, url='https://20952198.fs1.hubspotusercontent-na1.net/hubfs/20952198/PROJECTS/ALDEN/DOE-Eel-Passage/Laboratory-Test-Facility-DOE-Eel-Fish-Passage-Study.jpg'}}', 14='{type=string, value=The laboratory evaluation was conducted in a large re-circulating flume using the Klawa horizontal zig-zag eel bypass system and a vertical eel bypass system developed by Lakeside Engineering}', 15='{type=image, value=Image{width=1200, height=600, url='https://20952198.fs1.hubspotusercontent-na1.net/hubfs/20952198/PROJECTS/ALDEN/DOE-Eel-Passage/DOE-Eel-Passage-Study-biologist-with-eel.jpg'}}', 16='{type=string, value=Silver American eels were PIT tagged and measured for length, weight, and eye diameters prior to testing}', 17='{type=image, value=Image{width=1200, height=580, url='https://20952198.fs1.hubspotusercontent-na1.net/hubfs/20952198/PROJECTS/ALDEN/DOE-Eel-Passage/Pathlines-colored-by-velocity-DOE-Eel-Fish-Passage-Study.jpg'}}', 18='{type=string, value=CFD modeling was performed to model the hydraulic conditions of the lab and field studies}', 19='{type=image, value=Image{width=1200, height=600, url='https://20952198.fs1.hubspotusercontent-na1.net/hubfs/20952198/PROJECTS/ALDEN/DOE-Eel-Passage/Mine-Falls-Field-Installation-DOE-Eel-Passage-Study-1.jpg'}}', 20='{type=string, value=Field evaluation of biological performance conducted with full-scale bypass systems installed at the intake of a small hydro project}', 21='{type=image, value=Image{width=1200, height=600, url='https://20952198.fs1.hubspotusercontent-na1.net/hubfs/20952198/PROJECTS/ALDEN/DOE-Eel-Passage/Mine-Falls-Hydro-Project-Nashua-NH-DOE-Eel-Passage-Study-Field-Location.jpg'}}', 22='{type=string, value=Mine Falls Hydroelectric Project, located on the Nashua River in Nashua, New Hamsphire, was chosen as the site for the field evaluation}', 25='{type=number, value=0}', 27='{type=number, value=1}', 28='{type=number, value=0}', 29='{type=number, value=12}', 33='{type=number, value=0}', 34='{type=list, value=[{id=11, name='Natural Resources & Environmental Planning', order=5, label='Natural Resources & Environmental Planning'}]}', 37='{type=list, value=[{id=111, name='Fish Passage Design, Modeling & Testing', order=62, label='Fish Passage Design, Modeling & Testing'}, {id=112, name='Fish Protection Design, Modeling & Testing', order=63, label='Fish Protection Design, Modeling & Testing'}]}', 39='{type=string, value=doe-downstream-fish-passage-american-eel}'}
The laboratory evaluation was conducted in a large re-circulating flume using the Klawa horizontal zig-zag eel bypass system and a vertical eel bypass system developed by Lakeside Engineering
Natural Resources & Environmental Planning
Modular and Scalable Downstream Passage for Silver American Eel

Read how Alden tested the effects of innovative downstream fish passage technologies with lab, CFD, and field analysis. Funded by the Department of Energy

  • Since 2016, the Verdantas Team has consistently provided thorough, accurate, and timely plan reviews despite the pressures of fast-paced development in the community.

    Town Engineer Local Municipality, Delaware

  • Our municipality has utilized Verdantas as a consultant for capital projects involving the repair and replacement of its aging water and sewer infrastructure. They have provided initial engineering, design and construction management. The accuracy and thoroughness of their plans has resulted in capital projects that have consistently finished on time and within budget without unexpected change orders.

    Town Engineer Local Municipality, Delaware


Ready to build a better tomorrow?

Verdantas_People_Survey_Forest