North Street Retaining Wall

Montpelier, Vermont

DuBois & King conducted engineering and construction phase services to reconstruct a failing retaining wall located on North Street near the street intersection. The existing retaining wall was a metal bin-wall with chrysotile asbestos coating. The wall, constructed in 1981, had reached the end of its design life and showed signs of deterioration. North Street is located immediately adjacent to the bin wall, and the street and traffic would have been compromised had the deterioration of the wall continued.

The replacement retaining wall consists of precast segmental block concrete construction. The new wall is approximately 12 ft high and 70 ft long and is consistent with AASHTO and Vermont Agency of Transportation standards. The wall also protects the existing water main and local services. D&K assisted the City throughout the bid, preconstruction, and construction phases of the project.

Professional services included:

Field topographical survey
Geotechnical investigation (coordinated with drilling contractor and laboratory testing of soil)
Preparation of construction level plans
Preparation of opinion of probable construction costs
Bid phase assistance
Assistance with construction contract execution
Review of contractor submittals
Schedule and attend pre-construction and progress meetings
Construction observation and field quality control
Provision of final record drawings