planning design value engineering and community outreach combine to create bridge for bicycle and foot traffic 3 trails crossing memorial highway extensive public involvement project phasing and construction sequencing transforms kansas city s notorious interchange into a safer smoother smarter facility long island rail road atlantic avenue viaduct ntb s innovative rehabilitation concept reduced construction risks shortened construction schedules and provided a safer ride for passengers hntb is an infrastructure solutions firm that assists clients with their largest and most complex projects by providing a range of professional services . mercer corridor improvements clearing clogged streets uniting neighborhoods levi s stadium home of sb50 innovation and collaboration team up to realize owner s vision to deliver ultimate 49ers fan experience 495 express lanes vdot s design build project adds 14 miles to highly congested corridor & copy 2016 hntb contact employee access password reset file transfer privacy title vi