Natural Resources & Ecological Services
Wetlands, waterways, protected species, nesting birds, and sensitive habitats can affect design, permitting, and construction.
Environmental constraints related to wetlands, protected species, and sensitive ecological resources can significantly affect project timelines, costs, and approvals. DEA’s natural resources team helps clients get ahead of these challenges by identifying issues early, engaging with agencies efficiently, and developing practical solutions that keep projects moving.
With experience across federal, state, and local regulatory frameworks, DEA supports projects during early site evaluation, route planning, permitting, construction preparation, and issue resolution. Our team evaluates site-specific ecological conditions to identify potential constraints, minimize impacts, and facilitate compliance with applicable environmental requirements.
Services are performed in accordance with relevant agency guidance, including U.S. Army Corps of Engineers methodologies and U.S. Fish and Wildlife Service protocols, as appropriate to the project.
Typical Services Include:
- Wetland permitting support, including Nationwide and Individual Permit applications
- Mitigation planning, including restoration, enhancement, creation, and mitigation credit banking
- Biological assessments and ecological evaluations for regulatory review and agency coordination
- Threatened and endangered species habitat assessments and presence/absence surveys in accordance with USFWS and state agency protocols
- Targeted species-specific surveys for project-specific regulatory compliance
- Avian and nesting surveys, including drone-assisted aerial photography where appropriate
- GIS-based ecological constraints screening and mapping
- Agency coordination and support for avoidance, minimization, and mitigation strategies
Capabilities in detail
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Wetlands & Waters
Wetlands, streams, and other regulated waters can create permitting obligations when projects involve grading, access roads, foundations, utility crossings, trenching, fill, or other ground disturbance. Identifying these resources early helps designers and project managers understand where avoidance may be possible and where permitting or mitigation may be required.
DEA conducts wetland delineations and supports jurisdictional determinations in accordance with applicable U.S. Army Corps of Engineers guidance. Field observations are documented and integrated with mapping so project teams can understand the location and extent of identified aquatic resources in relation to proposed work.
Where impacts cannot be avoided, DEA supports permit strategy and preparation, including Nationwide and Individual Permit applications as applicable. Our team can also assist with mitigation planning, including restoration, enhancement, creation, and mitigation credit banking strategies based on project needs and agency requirements.
For linear infrastructure such as fiber, utilities, and transportation corridors, wetland and waterway review may involve numerous crossings across multiple jurisdictions. DEA uses GIS-based screening and field verification to help prioritize locations, coordinate data, and support consistent decision-making across the route.
Threatened & Endangered Species
Protected species and sensitive habitat can introduce additional review, survey, timing, or construction requirements. DEA supports compliance involving species protected under the Endangered Species Act, the Bald and Golden Eagle Protection Act, the Migratory Bird Treaty Act, and applicable state requirements.
Our team performs biological assessments, ecological evaluations, habitat assessments, and presence/absence surveys based on project-specific regulatory needs. Targeted species surveys are conducted using appropriate agency protocols where required.
The objective is to characterize risk efficiently and identify project-compatible solutions. Depending on the resource and project, this may involve avoidance, seasonal considerations, design modifications, monitoring, agency consultation, or other mitigation measures.
Avian & Nesting Studies
Bird and nesting considerations can affect the timing and execution of vegetation clearing, tower work, energy development, and other construction activities. DEA conducts avian and nesting surveys to document habitat conditions and identify active nests where relevant to project compliance.
Drone-assisted aerial photography may be used to supplement field observations when appropriate, improving site coverage and helping document conditions in areas that are difficult to observe from the ground. This technology complements, rather than replaces, qualified professional judgment and applicable survey protocols.
GIS & Early Constraints Analysis
Geospatial analysis is an important part of DEA’s natural resources approach. GIS-based screening can identify mapped wetlands, waterways, protected habitat, conservation lands, jurisdictional boundaries, and other environmental constraints before field mobilization.
Early constraints mapping gives engineers and project managers a visual way to compare environmental conditions with proposed site layouts or route alternatives. For large programs, the same data can support prioritization, field planning, agency coordination, and communication among multiple stakeholders.
As field data is collected, DEA can update project mapping to reflect verified conditions and support permitting, design, and construction planning. Clear geospatial deliverables help translate technical ecological information into practical project decisions.
Native American Tribal consultation is approached with the same emphasis on respectful, informed coordination. DEA supports consultation with federally and state-recognized Tribes as applicable to the project and regulatory framework.
Our experience can also include projects involving human osteology or biological anthropology, cemetery preservation, and implementation of the Native American Graves Protection and Repatriation Act where relevant. These matters require careful handling, appropriate expertise, and coordination with the responsible parties.
Support From Planning Through Construction
Natural resource requirements can evolve as a project moves from concept to final design. DEA can begin with desktop screening, refine the analysis through field investigation, support permitting and agency coordination, and help carry permit conditions into construction.
This continuity reduces the need to repeatedly re-establish project context and helps environmental commitments remain visible as designs change. For clients managing aggressive infrastructure schedules, early coordination also creates more opportunity to address constraints before they become late-stage conflicts.
DEA’s Project Delivery Approach
DEA begins each assignment by understanding the project purpose, schedule, available design information, and the decision the environmental work is intended to support. This helps keep the scope focused and allows technical work to be sequenced around project milestones.
Senior professionals remain involved in scoping, review, coordination, and issue resolution. When field conditions or agency comments change the expected path, clients have access to experienced practitioners who understand both the technical work and the broader project context.
Clear documentation is a core part of DEA’s approach. Reports, maps, correspondence, and recommendations are prepared so the project team can understand what was evaluated, what was identified, and what action may be required next. This is especially important when environmental information must be shared across engineering, legal, construction, funding, and operations teams.
DEA also looks for opportunities to coordinate related environmental tasks. When multiple disciplines apply, aligning fieldwork, GIS data, agency outreach, and reporting can reduce duplication and help keep the environmental record consistent as the project moves forward.