The Lexis Group, LLC

Staff follow ASCE Standard Guidelines for the Collection and Depiction of Existing Subsurface Utility Data. Accurate utility mapping early in the project lifecycle reduces redesign costs and unforeseen utility conflicts during construction.

• Records Research

  Compilation of existing records to identify subsurface site conditions, including utilities installed by multiple owners over time where records are incomplete or inconsistent.

• Utility Designating

  Geophysical methods including GPR, MCGPR, LiDAR, CCTV, magnetometers, elastic wave devices, and pipe and cable locators to map subsurface utility positions on the above-ground surface.

• Ground Penetrating Radar

  Single- and multi-channel GPR deployed to detect metallic and non-metallic structures including utilities, vaults, trolley tracks, and underground storage tanks. MCGPR can cover larger areas synced with GPS for post-processed anomaly identification.

• Vacuum Excavation

  Hydrovac excavation to expose and precisely measure utilities, recording size, composition, and horizontal and vertical location at specific points.

• Asset and Risk Management

  SUE-driven risk reduction to minimize utility-related project delays, change orders, redesigns, insurance costs, and right-of-way acquisition expenses.

• 3D Deliverables

  Three-dimensional depictions of subsurface utility investigations for comparison with proposed plans and integration into client GIS files or project documents.

Full-spectrum civil engineering including road design, commercial and industrial site planning, medical and research campus design, stormwater management, erosion and sediment control, structural engineering, accessibility compliance, and associated permitting.

• Transportation Design

  Road design and transportation landscape architecture with working knowledge of PennDOT standards, jurisdiction-specific requirements, appropriate plant material selection, and community outreach.

• Stormwater Management
• E&S Permitting and Planning

  Erosion and sediment control planning and approval acquisition, NPDES permit applications, and DEP and joint permits for road crossings and wetland mitigation.

• Structural Engineering

  Structural design integrating architecture and building systems, plus structural assessments, repair and reinforcement details, and replacement recommendations for existing structures.

• LEED Certification Support

  Support for LEED v4.0 Location and Transportation and Sustainable Sites credits, provided by LEED-certified principals.

Integrated site design and planning combining landscape architecture, sustainable design, and innovative green technology to achieve economic, social, and ecological sustainability across community development projects.

• Sustainable Planning and Design
• Streetscape and Complete Streets Design
• Transportation Landscaping
• Accessibility Compliance
• Best Management Practices

Guides site and community planning work tied to sustainable built-environment development.

• Geophysical Surveying
• Conventional Surveying and Mapping

Provides landscape-architecture support within TLG's site-design practice for sustainable community and transportation projects.

Provides proactive construction-phase administration and management intended to control cost, improve quality, and reduce construction claims.

• Construction Administration

  Supports construction-phase administration for civil engineering projects.

• Construction Inspections

  Performs construction inspections during active project delivery.

• Constructability Reviews

  Reviews project documents for constructability before and during construction.

• Document and Change Order Management

  Manages construction documents and change orders during the construction phase.

• Quality Management

  Supports construction quality management and testing-procedure monitoring.

• Project Close-Out

  Supports project close-out activities.