91黑料专区

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Business Areas

For more than 130 years, 91黑料专区 has continuously delivered results and contributed to the growth of the communities where we work. We have done this through partnerships with our clients and project stakeholders, adopting flexible and safe solutions to meet or exceed their needs, and relentlessly pursuing solutions that protect and enhance the environment.

Sustainable Mobility

Clean Water

Tunnels & Underground Infrastructures

Specialty Business

Our Track Record

MILES OF HIGHWAYS
ENERGY RELATED PROJECTS
MILES OF BRIDGES
MILES OF RAILROAD LINES
MILES OF TRANSIT LINE.METRO/LIGHT RAILS
MILES OF UNDERGROUND WORKS AND TUNNELS
NAVIGATIONAL LOCKS & FLOOD CONTROL DAMS
AIRPORT RUNWAYS & TAXIWAYS

Sustainable Mobility

Providing  long-term social, economic, and environmental benefits to communities

  • Highways and Bridges
  • Metro Systems
  • High-Speed Railways
  • Airports

CLEAN WATER

Water management projects to protect and restore water quality, reduce flooding, benefiting  communities and preserving natural environments.

  • Water Management Systems
  • Dams, Levees, and Reservoirs
  • Coastal Resiliency

TUNNELS & UNDERGROUND INFRASTRUCTURES

Our expertise in underground excavation and construction informs a variety of infrastructure and commercial projects in the United States.

  • Transportation (metro, railways)
  • Water conveyance (flood protection, water)
  • Utilities (sewers, energy, communication)
  • Commercial (underground parking, storage)

Specialty Business

VSL provides industry-leading electrical, signage, and lighting for roadways, intelligent transportation systems (ITS), mass transit and rail, and aviation.