Providing exceptional services using leading technology with a customer-focused team, HGA exceeds industry standards with best-in-practices scope design, budget tracking / reporting, and overall most-thorough engineering packages throughout all disciplines.

Mechanical and Piping

HGA’s Mechanical Design Group is an experienced staff of engineers, designers and drafters capable of providing complete mechanical engineering services for their clients. The diversification of the group allows HGA to service a wide variety of industries. The group structure allows optimum manpower utilization from small maintenance upgrades to major plant expansions and new plant development projects.

HGA’s mechanical group has available extensive expertise in the areas of piping design and material handling.

Industrial Process and Piping Design:

  • Piping and Instrument Diagrams
  • Process Flow Diagrams
  • Process Piping Design
  • Pumping Systems
  • Plant Utility Systems – Steam & Condensate, Compressed Air, Water, etc.
  • Fluid Flow Piping Analysis
  • Piping Stress Analysis
  • Finite Element Analysis of Piping, Tanks and Pressure Vessels
  • Hydraulic and Pneumatic Actuation System Design
  • Equipment Sizing
  • Equipment Layouts
  • Equipment Specifications
  • Installation oversight
  • Start-up assistance

Material Handling Projects:

  • Handling of Powder, Beads, & Dust
  • Conveying Systems
  • Pneumatic Conveying Systems
  • Stackers and Handling Equipment
  • Strapping & Wrapping Systems
  • Packaging: Super Sacks & Bags
  • Bag Collection
  • Pulverization
  • Densification
  • Beading
  • Drying
  • Screening
  • Bulk Storage
  • Board Handling
  • Railcar & Truck Loading
  • Vent & Fugitive Dust Systems

HGA’s Electrical Engineering staff provides traditional electrical engineering services as well as state of the art control system design and implementation. HGA has proven experience in power system design and applications including plant-wide utility power distribution systems both underground and overhead, medium voltage motor controls, low voltage motor controls, secondary power systems and lighting.

Electrical Power & Control System Design

  • HGA has proven experience in power system design and applications. The design and field services offered include:
  • Plant-wide Power Distribution Systems – Overhead and Underground
  • Switchgear – Medium Voltage and Low Voltage
  • Medium Voltage Motor Controls
  • Low Voltage Motor Controls
  • Secondary Power Systems
  • Drives and Drive Systems
  • Power/Lighting/Grounding Plans
  • Device Layouts
  • PLC/DCS Cabinet Design and Layout
  • Power/Load Studies
  • Short Circuit Analysis
  • Coordination Studies
  • MCC Layouts and One Line Diagrams
  • Block Diagrams
  • Cable Schedules
  • Elementary and Wiring Diagrams
  • Checkout/Start-Up Assistance


HGA is continuing to enhance its expertise in process control and instrumentation and have personnel experienced in a wide variety of control schemes and processes including petrochemical, pulp and paper and carbon black. Personnel experienced in a variety of Distributed Control Systems (DCS) are on staff.

The following list describes some of the expertise and services HGA can offer:

  • Detailed Scope & Cost Estimates
  • Site Surveys
  • Upgrade from Panel Control to DCS
  • DCS System Upgrades
  • Instrument Location Plans
  • Loop Sheets
  • Instrument Specifications
  • SAMA Diagrams
  • Network Diagrams
  • Marshalling Cabinet Diagrams
  • DCS Console Design
  • Checkout/Start-up Assistance
  • DCS Configuration
  • Honeywell
  • Matrix
  • Fisher ProVox
  • Bailey
  • Moore
  • Siemens

HGA’s Civil-Structural staff consists of a group of experienced engineers, designers, and drafters capable of providing a full range of civil and structural engineering related services. The experience of the HGA staff allows them to assist their clients in every phase of the project from conceptual layout through final design, bidding and construction. HGA’s Civil-Structural staff has provided services for a wide variety of industrial, commercial, municipal, public and private sector customers. The staff’s experience includes developmental projects as well as retrofit projects that require installing new equipment and structures in existing plants.

The goal of HGA’s Civil-Structural staff is to utilize their experience and resources in order to maximize efficiency without sacrificing quality. The experience and flexibility of the group allows HGA to respond promptly and professionally to our client’s civil and structural design needs. HGA is accustomed to working closely with their clients, other design professionals, contractors and regulatory agencies in order to make every project successful and to provide their clients with the best and most efficient service possible.

Civil-Structural Industrial Services

  • Initial Site Work
  • Field Investigation
  • Coordination of Environmental
  • Coordination of Geotechnical Testing
  • Surveying
  • Grading Plans
  • Drainage Improvement
  • Utilities & Infrastructure (Water, Sewer, Gas and Electrical)
  • Site Development – Site Design, Paving, Access Roadways and Rail Access
  • Industrial Buildings
  • Pre-Engineered Metal Buildings
  • Structural Steel Buildings
  • Wood Framed Buildings
  • Masonry (CMU) Buildings
  • Concrete Structures
  • Building Layout and Development, Warehouses, Operator Stations, Control Rooms, MCC Buildings and Administrative Office Buildings
  • Foundation Design
  • Process Structure Design
  • Dynamic Analysis
  • In-Plant and Site Paving Projects
  • Load Rating of Existing Structures

Civil-Structural Public Services

  • Feasibility Studies
  • Site Planning and Land Development
  • Subdivision Development
  • Utilities & Infrastructure (Water, Sewer, Gas and Electrical)
  • Drainage and Storm Water
  • Bridge Design
  • Rail Spurs
  • Roadway Design
  • Economic Grant Development
  • LCDBG Grant Project Management
  • Environmental Permit Coordination
  • Solid Waste Projects
  • USDA Development Projects
  • Community Water Systems
Chemical Process

HGA’s experienced staff is capable of providing process design, simulation, and optimization for chemical manufacturing processes. The diverse staff at HGA has expertise in numerous areas including oil and gas, pulp and paper, chemicals, pharmaceuticals, and alternative fuels. HGA’s process staff works intimately with the mechanical, electrical and instrumentation departments in the design of equipment and systems. Some of the essential services provided are as follows:

Grass Roots Plant Design and Development

  • Reactor, Distillation, and Exchanger design
  • Utilities, Pumping, and Piping Design
  • Intermediate Storage and Tank Farm Design
  • Environmental Controls and Permit Applications

Assist with Debottlenecking and Troubleshooting

  • Process Simulation (Aspen, Chemcad, Hysys, Pro II, etc.)
  • Six Sigma/Lean Manufacturing
  • Equipment Sizing and Rating
  • System Hydraulic Evaluation
  • Utilities Optimization and Capacity Evaluation

Develop and Validate PSM Compliance Needs

  • Process Flow Diagrams and Mass Balances
  • Piping and Instrumentation Diagrams (P&ID)
  • Emissions Modeling
  • Relief Systems Design and Revalidation
  • PHA Support

Additional Services

  • On-Site Support and Outsourcing
  • Start-Up Commissioning
  • Equipment Purchasing and Procurement
  • Operator Training
  • SOP Development
Project Management

HGA’s project management staff is experienced in managing projects for a wide range of industrial clients as well as the public and private sectors. Our Project Managers are capable of managing all phases of a project from conceptual development through engineering, construction and commissioning.

HGA’s Project Manager serves as the point of contact for the client’s project manager and is fully responsible for the successful execution of the project in terms of meeting all cost, schedule, safety and performance objectives of the project.