Specifications include, but are not limited to: Contractor shall provide all labor, equipment, materials, traffic control and incidentals necessary to remove and replace existing guardrail, posts, blocks, terminal sections and impact attenuators along Department maintained corridors. Contractor is to repair or replace with like kind systems or updated systems when the existing system or terminal end is no longer available or damaged to such a significant extent that it is in the best interest of the Department and the traveling public to install new current standard material, complete in place, rather than repair the existing system. The determination of when an existing guardrail system and/or crashworthy end terminal is significantly damaged such that it requires installation of a new system and/or terminal, rather than repair, or when an existing system and/or terminal requires adjusting the location will be made by the Department.