Specifications include, but are not limited to: Engineering services required for the preparation of plans, specifications and estimates (PS&E) and related documents, for the Capital Express South project for the section of IH 35 from US 290W/SH 71 to SH 45SE in Travis County, Texas, Austin District (CSJs: 0015-13-077, 0016-01-113) which includes the addition of two managed lanes in each direction through these limits. These services may include, but are not limited to, preparing roadway and bridge design, hydrologic and hydraulic design, traffic signal design, and geotechnical data collection, utility adjustment coordination, utility engineering, and if requested, provide design support and testify as the Engineer of Record at Right of Way hearings, and construction phase services necessary to support the design process.