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Our Foundation
Pathline Design Group was founded to bridge the gap between complex infrastructure requirements and environmental stewardship. Recognizing a critical need for data-driven precision in route planning, we established our firm to solve the intricate challenges of modern utility and energy corridors.
Our mission is to lead the engineering consulting industry through technical excellence. We empower clients with decision-ready deliverables, ensuring every route is optimized for feasibility, regulatory compliance, and community impact. At Pathline, your project’s success is built on our commitment to precision, safety, and innovative GIS solutions.
Our Technical Expertise
We combine advanced GIS mapping with engineering precision to deliver comprehensive route feasibility and environmental screening for complex infrastructure projects.
Route Feasibility & Comparisons
Comprehensive feasibility studies and alternate route comparisons to optimize capital expenditure and project stability.
GIS & CAD Constraint Mapping
High-precision digital mapping of design constraints, integrated intoKMZ and geodatabase formats for clear visualization.
Environmental Risk Analysis
NWI/NHD, floodplain, and land cover analysis to identify ecological constraints early in the design cycle.
Parcel & Landowner Review
Critical review of landowner conflicts and property interests to support smooth project acquisition and legal compliance.
Utility & Colocation Analysis
Identification of colocation opportunities and detailed utility crossing summaries to streamline complex design paths.
Regulatory PHMSA Screening
Specialized PHMSA HPA/OPA screening to ensure your infrastructure project aligns with rigid federal safety and design codes.
Command & Control
Robert Sterling, P.Eng.
Principal Engineer & Director of Route Feasibility
With 25 years of experience in civil engineering and infrastructure, Robert has led over 100 route planning projects. He specializes in solving geometric constraints and complex environmental challenges for high-cap utility corridors.
Sarah J. Miller, GISP
Lead Geospatial Consultant
Sarah is a recognized expert in GIS constraint mapping and environmental screening. Her technical background ensures that every deliverables package—from KMZs to geodatabases—meets the highest standards of accuracy and regulatory compliance.
Dr. Alan Thorne
Director of Environmental Analysis
Alan manages the environmental stewardship and stewardship protocols for Pathline. His experience with PHMSA screening and NWI/NHD analysis provides clients with defensible data for large-scale infrastructure permit acquisitions.
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Quality Controls & Standards
At Pathline Design Group, we adhere to the highest professional standards and environmental stewardship. Our commitment to precision ensures that every deliverable is decision-ready, meeting stringent quality controls and safety benchmarks for complex infrastructure projects.
Decision-Ready Deliverables
KMZ & GIS Shapefiles
Geodatabase Integration
Executive Route Reports
PHMSA HPA/OPA Screening
Floodplain & NWI Analysis