This intersection improvement project, located within the Edwards Aquifer Recharge Zone, includes engineering services required for preliminary studies, plan preparation and construction support. Initially, a traffic study was conducted and a traffic analysis and summary report of alternatives to improve operations/safety at the intersection were prepared. This report presented a preferred engineering alternative as well as a signal warrant study. Utilizing survey, geotechnical, environmental and design services SLG prepared and presented a preferred alternative for approval and further development.

The need for improvements to the US 281 project corridor stems from historic and continuing trends in population and employment growth along the corridor and within the surrounding areas. This proposed eight mile segment, between LP 1604 and Borgfeld Drive, doubles the number of existing lanes and completes direct connections with LP 1604. This project is an integral part of the San Antonio-Bexar County MPO’s long-range transportation plan. SLG assisted in design review of project schematics, supported the development of preliminary cost opinions for future construction and maintenance and attended working group meetings as needed.

State Highway 99 (the Grand Parkway) is a proposed 180-mile circumferential highway traversing seven counties in the Greater Houston Area. It is divided into 11 Segments designated A through I-2. For Segments H & I-1, the alternative alignments were developed within the project area to fulfill the need for and purpose of the project, to minimize potential environmental impacts, and to respond to public/landowner and resource agency comments. SLG provided engineering support and feasibility review services for SH 99 from near US 59 to SH 146. SLG assisted in design review of project schematics and supported the development of preliminary cost opinions for future construction and maintenance.

Project required design assistance for a Loop 20 expansion project from IH 35 to US 59 in Laredo. SLG assisted in development of route alternatives, design criteria and preliminary cost opinions; assisted in coordination with project stakeholders; reviewed existing and proposed ROW for compatibility with design and identified potential constraints; conducted design criteria analyses for the project limits; identified potential cost saving solutions; and prepared necessary presentation materials, reports and exhibits to support the above tasks.

Project required design assistance for a Loop 375, Border Highway West Extension Project from Racetrack Dr. to US 54 in El Paso. SLG provided alternative route studies and feasibility studies for protions of the project to ensure the best design was being carried forward; assisted in development of design criteria and preliminary engineering documents; assisted in coordination with project stakeholders including the BNSF Railroad, U.S. Customs and Border Protection and area utilities; assisted in determinations of limits of operations and maintenance; conducted design criteria analyses for the project limits; and identified potential cost saving solutions.

Project required design assistance and supplemental services under a procurement contract for the Loop 1604 Western Extension Project from FM 471 to SH 16. SLG evaluated alternate project configurations; reviewed existing and proposed ROW for compatibility with design and identified potential constraints; reviewed and updated probable construction and maintenance costs; and identified potential cost saving solutions.

This 3.4 mile project is situated between two major, State maintained roadways; FM 1460 and SH 130. The work performed consisted of providing engineering services required for the preparation of PS&E for the addition of lanes and shoulders to an existing two-lane roadway to create a predominantly four-lane divided facility. Initially, a preliminary project layout was prepared for coordination with Williamson County, the City of Round Rock and other project stakeholders to determine acceptable locations for median

openings and turn lanes in addition accommodating existing and proposed driveways and sidestreets.

The limits of design for Mager Lane improvements are from FM 1660 to the east City Limits of Hutto. With current and projected land use being predominantly mid-density residential and commercial, this two-lane rural roadway needed to be upgraded to provide for future growth and traffic demands. Additionally, because Mager is a key school route to Hutto Elementary from Clark’s Crossing, Carol Meadows and other nearby subdivisions, this section of roadway was identified as the number one priority in Hutto’s Pedestrian Mobility Plan. Prior to beginning construction documents for this three-lane urban facility, a project schematic was developed to ensure all design thoughts and elements were in sync with the City’s and the school’s needs and criteria and accommodated local property access requirements. The project was presented in a public

forum before continuing to the plan preparation stage.