The Town of Grafton is seeking sealed proposals for the repair of an estimated 10’ by 10’ section of the Pettengill Bridge located on Houghtonville Road. If the contractor thinks the work exceeds 10’ by 10’, the contractor must immediately contact the Town before doing further work.; Where the pavement shows signs of distress, the pavement will be saw cut 18 inches outside of the area in the shape of a rectangle. The concrete will be saw cut 6 inches inside of the pavement, saw cut to allow finishing of the concrete, the depth of this saw cut will be 1.5 inches to preserve the top mat of rebar. Concrete will be chipped with a jackhammer to sound in this area, if sound concrete is found, it has to be removed a minimum of 1 inch below the top mat of rebar. If rebar is found to be damaged or destroyed bars will be added, this would be a very minor amount and not expected. Once demolition has commenced the area shall be blown clean and all debris removed before pouring concrete. Concrete shall be 4,000 PSI and suitable for the application, shall be water cured with burlap for 5 days after poured. The Town will repave the surface once all other work is completed by the contractor. One lane of the bridge must remain open throughout the duration of the project. No heavy trucks will be authorized to travel over the bridge. The contractor is responsible for obtaining all appropriate road signage and traffic control.
