Specifications include, but are not limited to: Prepare Plans, Specifications, and Estimate (PS&E) documents, as needed to support the project. This effort includes design services for bid-ready construction documents. It also includes preparation of supporting documents including, but not limited to the EDR, CSPP, and ESCP. Surveying and mapping. Environmental Services, including the complete preparation of environmental documentation and all permits. Prepare an Airport Layout Plan (ALP) reflecting the effects of this project on the airport. Assistance during bidding to respond to clarification requests by contractors. Assistance during construction to confirm that contractor submittals conform to the contract requirements and to adapt the contract as needed to unforeseen conditions.