Project : Lake Champlain Bridge

HNTB Corporation -- Crown Point, New York

The new Lake Champlain Bridge is a 2,200-foot span using a modified tied arch design that matches the existing lines, profile, and look of the previous bridge. This $70 million project was progressed by both the NYSDOT and VTrans under an agreement between the two states.

CHA assisted HNTB with the design of the national and state award-winning design for the replacement of the Lake Champlain Bridge. CHA's responsibilities included perform­ing an existing boat inventory to determine the appropriate vessel to be used to estab­lish the vertical alignment of the structure; assisted with the preparation of the NEPA documents and environmental permits for both Vermont and New York; designing the horizontal and vertical alignment of the proposed structure; prepared separate site resto­ration plans for Vermont and New York to facilitate removal of the temporary ferry; and blending the respective approaches back into the archaeologically and historically-sensi­tive areas on each side of Lake Champlain.

The project was advanced on a fast-track basis with final design and award of a con­struction contract within six months of the emergency bridge closure in order to elimi­nate the hardship of a detour of 100 miles for local residents.

Services Provided by CHA:
  • Project Scoping
  • Origin-Destination Study
  • Preliminary Design
  • Environmental Studies and Documentation
  • Final Design (Highway Approaches)