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Scope of Work:
· Removal and replacement of deteriorated steel members on the main span and approach span trusses. These main trusses remained in place for this work. The approach trusses were removed, rehabilitated on the ground and then reset in place.
· Removal, to defined limits, sections of the existing layed up stone abutments and pier. These sections were replaced with concrete, which was textured by the use of form liners, to match the remaining stone. This concrete was also integrally colored and stained to match the existing stone.
· Structural lifting and replacement of existing bridge bearings.
· Modification of the existing approach and main span floor beams to accept the new structural steel girders.
· Placement of new ‘weathering’ steel girders and diaphragms on the main and approach spans.
· Placement of a bridge deck that included the use of stainless rebar in lieu of galvanized or epoxy rebar. The stainless rebar was required for corrosion protection because the bridge deck thickness was designed as 7-1/2” thick instead of the standard 9-1/2”.
· Fully enclosed containment for the sandblasting and painting of all the original steel members.
· All of the aggregates, concrete and asphalt for the project were supplied from our own quarries and plants.
· Close coordination with the local white water rafting tour companies took place, as this river is heavily traveled by their groups. All of the work was performed without any disruption of the white water tours.
· All of the work took place, over the environmentally sensitive SacandagaRiver, without any incidences.
· All of the work was performed without any lost time or recordable incidences.