1.2. SCOPE OF WORK: The Work will be split into a Base Bid, and two Additive Alternate Bids, as follows: 1.2.1. Base Bid – This work consists of tree removal, clearing, removal of an existing pedestrian timber bridge, construction of a 50-foot span pedestrian bridge with cast-in-place concrete abutments, riprap, seeding, traffic control and other associated work as detailed in the Plans. 1.2.2. Additive Alternate Bid 1 – This work consists of clearing, tree removal, removal of a second existing pedestrian timber bridge, installation of a precast concrete pipe culvert with end sections, riprap, seeding, and other associated work. 1.2.3. Additive Alternate Bid 2 – This work consists of clearing, removal of an existing pipe culvert, installation of a precast concrete pipe culvert with end sections, riprap, seeding, and other associated work. Descriptions above are summaries of the work items only, refer to attached Project Plans and Specifications for full details and scope of work.