Specifications include, but are not limited to: endor to design, furnish, erect and dismantle scaffolding system for stable working access to the specific areas on both sides of the culvert for concrete formwork and stone masonry. The proposed scaffold system should conform to the following requirements, guidelines and standards: • Conform to the horizontal contour/curvature of the existing spandrel walls. Scaffolding to be installed/erected to accommodate all changes in vertical topography. • Scaffolding posts and/or end bucks to be set on base plates and/or adequate sills or pads to prevent slipping and sinking. Provide a 2’-0 wide continuous walkway/working platform capable of supporting a minimum 50 lb./S.F. The walkway/working platform should be unobstructed and free of any interference (e.g. end bucks) by means of cantilever frames or outriggers. Platform height to be set at 1’-0 +/- below top of the existing culvert walls.