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Midwest Railroad & Mass Transit Construction Contractor

Millstone Weber specializes in the civil construction and structural work that supports railroad and mass transit operations throughout the Midwest. We build the bridges, retaining walls, embankments, drainage systems, and platform structures that railroads and transit agencies require—not the track itself, but the critical infrastructure that makes rail operations possible.

We’ve delivered projects for freight railroads like Union Pacific and BNSF, and for light rail systems like Metrolink. Our approach combines precise structural construction, rigorous safety protocols, and deep experience coordinating with railroad operations to deliver quality infrastructure while maintaining service schedules.

Railroad & Mass Transit Construction

Millstone Weber provides comprehensive civil construction for railroad and mass transit infrastructure. Our railway construction expertise spans bridge structures, retaining walls, embankments, drainage systems, and platform foundations. We work within active rail corridors for freight railroads, commuter rail systems, and light rail transit agencies across multiple states.

Our railroad and mass transit construction capabilities include:

  • Sub-ballast installation and trackbed preparation (foundation work, not track laying)
  • Railroad crossing construction at highway and street intersections
  • Drainage structure construction for rail corridor stormwater management
  • Utility relocation to accommodate rail infrastructure improvements
  • Earthwork and grading for rail yard expansion and track realignment projects
  • Railroad bridge construction including new structures and bridge replacements over and under active rail lines
  • Bridge rehabilitation and demolition with controlled removal and reconstruction
  • Retaining wall construction for rail corridor stabilization and grade separation
  • Mass excavation and embankment construction for rail corridor preparation

Urban Rail & Commuter Rail Systems

Light rail and commuter rail construction presents distinct challenges from freight railroad work. Urban rail systems operate on precise schedules through dense metropolitan areas where construction must coordinate with passenger operations, station access, street traffic, and public expectations for minimal service disruption.

Millstone Weber has extensive experience with metro and light rail systems including Metrolink across the St. Louis region. Our urban rail portfolio spans platform construction, station infrastructure improvements, and system-wide security upgrades. This includes the first project in the United States to convert from an open to closed fare system, which required construction across 18 active stations while maintaining full passenger service.

Our urban rail and commuter rail capabilities include:

  • Platform construction and renovation for passenger boarding areas
  • Station infrastructure work including foundations, access improvements, and plaza construction
  • Security infrastructure installation including fencing, lighting, and fare collection systems
  • Coordination with active passenger service maintaining station access and train operations during construction
  • Bridge work for grade-separated crossings allowing trains to cross streets and highways
  • Weekend and off-peak construction windows to minimize passenger impact

Freight Railroad Infrastructure

Freight railroad construction demands specialized expertise working within active rail corridors where trains operate 24/7. Millstone Weber has extensive experience with Class I railroads including Union Pacific, BNSF, Norfolk Southern, and terminal railroad operations. Our freight rail projects span bridge construction, rail yard improvements, and mainline corridor work.

Our freight railroad infrastructure capabilities include:

  • Bridge construction over and under active mainlines with precise coordination of rail traffic and construction windows
  • Rail yard construction and expansion including grading, drainage, and structure work
  • Mainline track structure improvements building foundations and structures for track reconstruction
  • Grade separation projects constructing underpasses and overpasses for highway-rail crossings
  • Coordination with railroad operations working within strict clearance requirements and limited track outages
  • High-speed rail corridor construction including our work on Illinois High Speed Rail projects

Railway Safety & E-Rail Certification

We work efficiently within active rail environments while protecting our workers, railroad personnel, and maintaining the integrity of rail operations. Millstone Weber maintains a strong safety culture with extensive E-rail certification across our workforce. E-rail certification is the railroad industry’s specialized safety training program covering the unique hazards and protocols required when working within active rail corridors.

Our railroad safety expertise includes:

  • E-rail certified workforce trained in railroad-specific safety protocols and procedures
  • Coordination with railroad safety departments for all work within rail corridors
  • Track protection and flagging procedures ensuring worker safety around active rail operations
  • Clearance requirements and equipment restrictions managing construction within railroad right-of-way limitations
  • Experience with multiple railroad safety programs across different carriers and transit agencies

Self-Performed Concrete & Bridge Structures

We own and operate five portable concrete batch plants, maintain specialized bridge construction equipment, and self-perform all critical concrete work. We don’t rely on subcontractors for the structural elements that define rail infrastructure quality and longevity—our crews and equipment control the critical work that determines project success.

Our self-performed railway construction services include:

  • Mass excavation and earthwork for rail corridor preparation and grading
  • Deep foundation work including drilled shafts and driven piles for bridge foundations
  • Drainage structure construction including culverts, detention basins, and stormwater systems
  • Demolition of existing structures including controlled bridge removal within rail corridors
  • Bridge structure construction including piers, abutments, caps, and deck placement for railroad bridges
  • Retaining wall construction using cast-in-place concrete and specialized forming systems
  • Concrete production using on-site portable batch plants for quality control

Featured Railroad & Mass Transit Projects

Client: BNSF | Value: $7.0M
Two-mile mainline extension including 40,000 CY rock excavation, 25,000 CY common excavation, 26,000 tons subballast, and 120-foot bridge construction.

Client: Union Pacific Railroad | Value: $58.8M
Grading, structures, subballast, ballast, piling, nine bridge replacements, and 14.5 miles of track construction preparation for high-speed rail corridor.

Client: Bi-State Development | Value: $32M
Security upgrades at 18 active light rail stations including 28 plaza renovations, 50,000 LF security fence, signal, lighting, CCTV, and fare collection upgrades. First project in USA to convert from open to closed fare system.

Client: Bi-State Development | Value: $4.9M
Demolition of existing bridge, construction of new structure, and replacement of all associated rail elements completed within required one-week holiday outage.

Client: Terminal Railroad Association | Value: $4.4M
26,000 CY earthwork, 22,000 tons subballast, grading, drainage, two miles of new track construction preparation, and four miles of track rehabilitation preparation.

Client: Union Pacific Railroad | Value: $5.3M
Demolished two buildings and constructed new 20,000 SF prefabricated blasting facility including piling, pile caps, grade beams, reinforcing steel, and 8-24 inch slab-on-grade concrete.

Why Railroad & Transit Agencies Choose Millstone Weber

Our E-rail certified workforce understands the unique safety requirements of working within active rail corridors.

We don’t subcontract the structural work that defines rail infrastructure quality and durability.

From Class I freight railroads to urban light rail systems, we understand the operational constraints and technical requirements of different rail environments.

Our portfolio demonstrates successful project delivery while maintaining freight movements and passenger service.

Based in St. Louis and Denver, we serve railroad and transit infrastructure needs across Missouri, Illinois, Colorado, Arizona, Arkansas, and beyond.

Ready to Discuss Your Railroad Project?

Whether you’re planning bridge construction, rail yard expansion, or light rail infrastructure improvements, Millstone Weber brings the specialized safety expertise, self-performed capabilities, and proven railroad construction performance your project demands.

Contact Blake Boggs | Railroad & Transit Projects

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