Res 2024-219 approving an On-Call Agreement with Tetra Tech, Inc., for engineering design, bid and construction phase services for the Wallace Addition Subdivision Improvements Project, in an amount not to exceed $2,000,000.00

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Docusign Envelope ID: BB27E2CA-90E7-44DF-ACD6-60284C2E92F6 Mr.Jaime R. Kypuros,Jr.,PE City of San Marcos Wallace Subdivision August 13,2024 SGT 24 1041 pavement design report will document assumptions and design considerations. The pavement design report will include the following: • Cover sheet with roadway name,geographical limits, and signatures of persons involved in the preparation and approval. • Existing and proposed typical sections. • Soils map of the project area with a brief description of each type of soil located within the project areas. • Design input values and output. • Conclusion consisting of recommended pavement design or designs based on the data, analyses, and procedures included in the report. • Pavement design details specified for each location that includes structural layer materials, general specifications, and layer thicknesses. • Relevant pavement evaluation data (structural and functional) and condition information on adjacent roads. • Site conditions that might influence the design and performance of pavements. • Relevant geotechnical data including boring logs,laboratory soil test results, dynamic cone penetrometer (DCP) data,pavement coring and soil classifications with Atterberg limits. • Falling weight deflectometer (FWD) data,plots and analysis results of the field explorations and testing of pavement sections using the MODULUS software. • Recommended pavement rehabilitation and designs for new pavements. • Design criteria used in determining pavement designs,including traffic loads,pavement material characterization, environmental conditions, and pavement design life. • Design summary from the program used to design (e.g., FPS 21, DARWin, and MODULUS 7.0) • Pavement material specifications based on City of San Marcos and/or TxDOT standard construction specifications. • Other considerations used in developing the pavement designs, including subgrade preparations and stabilization procedures will be as provided. Assumptions The following assumptions were made in developing the scope and fee estimate for this project: • Boring locations are not finalized yet. Boring locations will be mutually agreed upon by Tetra Tech and HVJSCTx. The proposed boring locations may need to be adjusted to avoid utility conflicts, and/or limit traffic control requirements. • Traffic control will be required for drilling. • City permit will be required. We understand city permit fee (if there is any) will be waived. • Tetra Tech shall provide HVJSCTx with an electronic site map. • Surveying of the boring locations will be done by others,if required. • HVJSCTx will be responsible for avoiding conflicts with utility facilities by contacting the One Texas calling facility.