Keeping the Trains Moving and Our Citizens Safe
Established in 1997, Interrail Engineering Inc provides comprehensive railway signal design, engineering, installation, and maintenance. Operating as a family of specialized practices, it serves Class I and short line railroads across the United States. Its capabilities span preliminary engineering, application programming, construction assistance, field testing, and custom power systems manufacturing, delivering turn-key safety and communication solutions.
AAR M-1003 Quality Assurance
Chryol KelleyCEO
Brad SloverExecutive Vice President
Mike HutsonVice President of Field Operations
Keith CarterVice President of Engineering
Leta KelleyFinance Director / HR
TJ NashAVP of Field Operations
Comprehensive signaling and communications design services tailored to railroad infrastructure, ensuring compliance with strict safety standards.
Development of vital and non-vital railway signal application software, including validation and verification.
Professional CAD drafting and detailing of signal plans and schematic designs.
Creation of comprehensive wiring schematics, interlocking layouts, and signaling detail designs.
Feasibility studies, field surveys, and initial conceptual layout designs for transit and freight systems.
Testing and validation of vital systems within virtual simulated environments before physical commissioning.
In-house wiring and configuration of custom signaling and control housings.
Turn-key physical signal system installation, route construction, and grade crossing infrastructure development.
Track bonding and directional boring for subterranean cable routing.
Routing and termination of high-capacity fiber networks across rail corridors.
Complete setup of highway-rail grade crossing systems, including warning lights, gates, and island detection.
Safe, efficient decommissioning and removal of obsolete pole lines and related vital circuits.
Turn-key installation of signals, switch machines, bungalows, and wayside detectors.
Hydro-excavation and vacuum extraction services for safe utility exposure.
End-to-end oversight of signaling projects, from materials procurement and management through to deployment.
Sourcing, warehousing, and logistics handling for signaling hardware and site materials.
Detailed project estimations, site high-rail surveys, and scoping assessments.
Professional construction management, scheduling, and contract oversight.
Quality assurance testing to verify signaling configurations and application software safety.
Factory acceptance and in-house functional rack testing of wired signaling equipment.
Field testing and commissioning inspections of in-service signaling and communications.
AC power management, power supply acquisition, and sizing calculations for transit and rail utility services.
Acquisition of power sources, utility coordination, permit management, and conductor sizing calculations.
Production and distribution of specialized railroad power devices, enclosures, and safety accessories.
Manufacturing of step-up/step-down transformer boxes, aluminum enclosures, and custom electrical cases.
Supply of patented crossing safety ladders, shunt enclosures, locks, jumper boxes, and dragger tools.
Procurement and supply of brittle bar dragging equipment, derail detectors, and wayside defect detection systems.
Ongoing support for rail infrastructure to ensure operational continuity and safety.
General track-side and signaling maintenance services.
Clearing and management of vegetation along rail rights-of-way to maintain clear sight lines.
Rail · Transit · Transportation
Rail · Client: Norfolk Southern Railroad
Installed over 2500 miles of positive train control (PTC), including 3000 PTC radio towers and in-service test inspections. Designed, programmed, and tested over 1000 Federal grade crossing warning systems, Quiet Zones, and advanced preemption, as well as provided design, programming, and simulation for 600 track miles of PTC.
Rail · Client: North Villa Rica
Provided verification and validation of Vital Railroad Signal Application Software for E-ATC/PTC and grade crossing warning approaches via fiber network.
Rail · Client: AAF/Brightline/Virgin Rail
Provided vital software programming for Alstom's version of PTC, E-ATC, and grade crossing warning approaches via fiber networking in a high-speed envelope.
Rail · Client: AAF/Brightline/Virgin Rail
Performed design review for 86 high-speed envelope grade crossing warning systems from Cocoa Beach to Fort Pierce. This included four quad gates with island detection medians and channelization per FRA, AREMA, FDOT, and MUTCD requirements.