Pipeline Infrastructure Designed, Built, and Certified to Code
From design and routing to hydrostatic testing and SCADA integration, DPE delivers complete gas pipeline systems for industrial, municipal, and energy clients.
Steel and Polyethylene Pipeline Systems, End to End
Gas Pipeline Engineering & Construction is a new service line added to the DPE portfolio in 2026. Building on two decades of industrial infrastructure experience, DPE now designs, engineers, and constructs gas transmission and distribution systems for industrial facilities, municipalities, and energy plants.
Design, routing, and engineering of steel and polyethylene gas pipelines
Construction of transmission and distribution lines for industries, municipalities, and energy plants
Installation of regulating and metering stations (RMS)
Hydrostatic testing, non-destructive testing (NDT), and integrity certification
Permit management, industrial safety, and regulatory compliance
Who We Build For
Industrial facilities and manufacturing plants, municipalities and public utilities, energy generation plants and transmission networks, and natural gas distribution systems.
Design, Construction, and Systems Integration
DPE manages the full pipeline project lifecycle in-house. From route planning and engineering to field construction, testing, and handover — one team, no gaps.
Pipeline Engineering
Route surveys and alignment planning. Hydraulic modeling and capacity analysis. Piping stress analysis and support design. P&ID development and code compliance review per API, ASME B31.8, and DOT standards.
Field Construction
Trenching, bedding, and backfill. Welding and fusion bonding of steel and polyethylene pipe. Horizontal directional drilling (HDD) for crossings. Installation of valves, fittings, and isolation systems. Permit management and safety compliance.
Systems & Commissioning
Regulating and metering station (RMS) installation. SCADA systems and remote monitoring integration. Sectionalizing valves and cathodic protection. Hydrostatic pressure testing and NDT. Integrity certification and regulatory sign-off.
Standards & Regulatory Compliance
All DPE gas pipeline work is designed and constructed in compliance with federal and industry regulations. Our team manages permitting, documentation, and agency coordination from start to finish.
01
Hydrostatic Testing & Integrity Certification
Pressure testing to code specifications, leak detection, and documentation for regulatory submission and operational sign-off.
02
Non-Destructive Testing (NDT)
Radiographic, ultrasonic, and magnetic particle testing of welds and pipe joints to verify structural integrity before commissioning.
03
Cathodic Protection Systems
Impressed current and sacrificial anode systems designed to protect buried steel pipelines from corrosion over the full service life.
Pipeline Projects in the Field
Gas Pipeline Engineering & Construction is a new 2026 service line. The projects below reflect DPE's broader infrastructure track record that forms the foundation of this capability.
