The contract includes pay items for removal of existing guardrail systems and end terminals and installation of new guardrail, crashworthy end terminals, and related appurtenances complete in place. The Engineer may order a new guardrail system, crashworthy end terminal, or related appurtenance to be installed when the existing system and/or terminal is damaged to such a significant extent that it is in the best interest of the Commission and the traveling public to install new current standard material, complete in place, rather than repair the existing system. New guardrail systems and/or terminals may be used to replace an entire existing system and/or terminal, which is partially or wholly damaged, or selected portions of such damaged system and/or terminal. Installation of new guardrail systems and/or terminals may require conformance to location specific plans provided by the Engineer. The work may involve adjusting the location of new guardrail systems and/or crashworthy terminals to properly shield the roadside obstacle for which the existing damaged system and/or terminal was originally installed. 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 Engineer.
